GE AKD-10 User guide

GE Consumer & Industrial
Electrical Distribution
imagination at work
AKD-10 Application Guide
Featuring WavePro™
Low Voltage Power Circuit Breakers

1
Contents
General description .........................................................3
Safety and reliability features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
POWER LEADER™Power Management System .............................10
Power+™,MicroVersaTrip Plus™and PM™Trip Units . . . . . . . . . . . . . . . . . . . . . . . .11
Application data ...........................................................12
Accessories & electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Repetitive duty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
Design considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Time current tripping characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
The Load Center Principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Power circuit breaker selection tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Ground detection considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Automatic transfer (throwover) equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Sizing and dimensional data ...............................................32
Switchgear layout and sizing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
POWER LEADER™instrument door . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Breaker Instrument Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Floor plans and side views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
WavePro breaker wiring diagram ..........................................51
WavePro breaker catalog number guide ...................................53
Guideform specifications ..................................................55
Standards and references .................................................62

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3
General description
AKD-10 Switchgear is industrial-duty equipment built to
ANSI standards and uses 100% rated WavePro™Low
Voltage Power Circuit Breakers. It is designed to have more
margin within its ratings to provide maximum continuity of
service for those applications subject to severe duty, such as
repetitive switching encountered with motor starting, power
factor correction, demand control, load shedding, etc.
Amajor factor contributing to this extended continuity of
service is the availability of renewal parts complete with
detailed maintenance instructions and original equipment
documentation. From a coordination standpoint, WavePro
circuit breakers provide full selectivity with each other and
with other protective devices. The bus sizing is based on
temperature rise rather than on current density (as with
switchboard construction).
AKD-10 switchgear is available with the following maximum
nominal ratings:
• 600 Vac
• 5000 Amps ac
• 50/60 Hz
• 2200 Vac RMS dielectric
• 200 kA symmetrical short circuit
AKD-10 switchgear sections are provided in either 22", 30" or
38" widths. It is designed to be operated in an ambient tem-
peraturebetween -30°C and 40°C (-22°F and 104°F).
WavePro low voltage power circuit breakers are available for
AKD-10 switchgear in six frame sizes:
• 800A WPS/WPH/WPX/WPF-08
• 1600A WPS/WPH/WPF-16
• 2000A WPS-20
• 3200A WPS/WPH/WPX-32
• 4000A WPS/WPX-40
• 5000A WPS/WPX-50
All breakers can be equipped with current limiting fuses.
WPF-08 and WPF-16 are provided with integrally mounted
fuses, while a separate fuse carriage is required for WPS-20,
WPS-32, WPS-40, and WPS-50 type breakers.
Low voltage circuit breakers rated 800/1600/2000 amps can
bestacked in four-high combinations resulting in reduced
floor space requirements. The 11-gauge, bolted modular-
designed steel frame permits flexibility in arrangements of
breakers and associated components.
AKD-10 switchgear houses low voltage power circuit breakers,
instrumentation, and other auxiliary circuit protective devices
in single or multiple source configurations. AKD-10 switchgear
can be applied either as a power distribution unit or as part
of a unit substation in indoor or outdoor construction.
AKD-10 switchgear is manufactured in GE’s ISO 9002 certified
facility in Burlington, Iowa. It complies with ANSI standards
C37.20.1 and NEMA SG-5, and it is UL listed to standard
1558, file no. E76012. The switchgear has been conformance
tested according to ANSI C37.51. AKD-10 switchgear can
also be labeled per CSAstandard C22.2.
ANSI standards requirethat switchgear operates at the rat-
ings of devices installed. Switchgear short circuit ratings are
based on two30-cycle withstand tests with 15-second interval,
performed at 15% power factor and 635 Vac maximum. For
switchboards, a single 3-cycle withstand test at 20% power
factor and 600 Vac maximum is performed.
General Electric’s AKD-10 Low voltage switchgear can help
you meet today’s challenges for greater productivity,
increased operator safety and improved equipment reliability
and maintainability.

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Safety and reliability features
Standard and optional features are available with AKD-10 switchgear in order to
meet the increasing industry emphasis on maximum uptime, system reliability and
operating personnel safety:
• Closed-door operation
Breaker compartment doors have no ventilation openings, thus protecting oper-
ators from hot ionized gases vented by the breaker during circuit interruption.
• Closed-door drawout
True closed-door drawout construction is standard with all AKD-10 equipment.
The breaker compartment doors remain stationary and closed while the breaker
is racked out from the connect position, through test, to the disconnect
position. Doors are secured with rugged 1/4-turn latches.
• Closed-door control circuit accessibility
Standard AKD-10 construction provides a metal instrument panel above each
circuit breaker. This panel is used for mounting a variety of control circuit
devices. Fuses for the breaker close and trip circuits are front mounted in dead-
front, bayonet-type fuse holders. Up to three indicating lights can be mounted in
the panel — with lamps replaceable from the front. Toggle switches used for
testing the breaker close and trip circuits can also be mounted in the panel. The
panel is removable for gaining access to the wiring terminations. An engraved
circuit nameplate for the breaker is also provided on the panel.
• Closed-door trip unit setup and display
All WavePro™breakers used in AKD-10 switchgear have front-mounted trip units.
This puts all trip unit information out where operators can have full and safe
access to it without opening the breaker door. Depending on the trip unit
supplied, the following information is available at the front of the breaker:
–Trip unit type
–Breaker trip rating
–Trip targets (optional on Power+™)
–Phase 1-2-3 current readings (MicroVersaTrip Plus/PM)
–Current sensor rating
–Trip unit settings **(LT, ST, INST, GF)
–Trip counter (MicroVersaTrip Plus™/PM™)
–Additional metering (MicroVersaTrip PM) —
Voltage [L-L, L-N]
Total power [kVA]
Energy [kWh]
Real power [kW]
Demand and peak demand [kW]
Frequency [Hz]
–Protective relaying settings ** (MicroVersaTrip PM) — Pickup and delay for
undervoltage, overvoltage, voltage unbalance, current unbalance, power reversal
– Communication address ** (MicroVersaTrip PM)
–Port for portable test kit (TVRMS2) or portable battery pack (TVPBP)
**Trip units have a sealable cover so that trip unit settings can be viewed but not changed
Easy-to-use breaker interlocking and locking features minimize the risk of
operational errors:
• Low-voltage power circuit breaker locking
As a standard feature, the low-voltage power circuit breaker can be
padlocked in the open position with up to three 1/4" - 3/8" shank padlocks to
prevent unauthorized closing.

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• Breaker insertion and withdrawal interlocks
ÀInterlocks prevent racking of the breaker in or out when the breaker contacts
are closed. ÁBreakers are trip free when not in the CONNECT or TEST position.
Asuperior bus system offers different levels of protection:
•Fully tin-plated copper bus
Fully tin-plated copper main and riser bus is a standard feature on AKD-10
equipment. Tin plating provides superior corrosion protection, especially for
application in the pulp and paper and waste treatment industries where corrosive
agents routinely exist. GE’s bus bars are tin-plated after forming and punching
to ensure completely plated bolt holes and bar edges. Sliding contact surfaces,
such as breaker stab tips, are fully silver-plated. Fully silver-plated bus is available
as an option.
• Bus system
Bare bus is provided as standard on AKD-10 switchgear. In this configuration,
there are no covers to remove, so all bus connections are easily accessible for
maintenance. Note that a horizontal isolation barrier is provided between the vertical
buses at every main and tie breaker for added safety in the event of a fault. An insu-
lated/isolated bus system that fully insulates the horizontal main bus with a fluidized
epoxy coating and isolates each phase of the vertical riser bus is available as an
option. Accessibility to main bus joints is provided by replaceable covers and no live
connections are reachable from the rear except the breaker load side terminals. Bus
compartmentation is also available as an optional featureon AKD-10 switchgear.
Vertical and horizontal buses are isolated from the cable compartment by glass
reinforced polyester barriers.
The breaker compartment is designed toprovide operator and
system safety options:
• Isolated breaker compartment (standard)
Each circuit breaker is located in a completely enclosed ventilated compartment
with grounded steel barriers to minimize the possibility of fault communication
between compartments. A breaker position switch is optionally available.
• Safety shutters
Safety shutters are optionally available in breaker compartments. They protect
operators from accidental contact with live conductors when the breaker is
withdrawn. Safety shuttersareprovided as a standard feature on main and tie
breakers in multi-source substations.
•Defeatable door interlock
This option prevents inadvertent opening of the compartment door unless the
breaker is in the TEST or DISCONNECT position. A provision is made for authorized
defeat of interlock.
• Padlockable door latch
This optional feature enables padlocking of the door latch in order to prevent
unauthorized entry into the breaker compartment.
Á
À

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• Breaker rejection feature (standard)
Arejection system is provided as standard in each breaker compartment
to prevent the insertion of a breaker with inadequate short circuit and/or
incorrect continuous current ratings.
• Wheels and guidebar (standard)
All WavePro™circuit breakers are equipped with wheels and a guidebar to pro-
vide easy and accurate drawout operation. When installing the breakers, they
are lowered onto the extended drawout rails. Wheels on the side of the breaker
allow the breaker to be easily rolled into the cubicle until the breaker engages
the racking pins in the cubicle. The breaker is equipped with a rugged guidebar
that ensures precise alignment of the primary and secondary disconnects during
insertion and withdrawal.
• Drawout padlock provision (standard)
WavePro and AKD-10 offer an array of standard, safety locking features that
provide extra measures of security when breaker, equipment, or load mainte-
nance is performed. In addition to the padlocking feature on the breaker that
keeps it open and tripfree, WavePro breakers are also equipped with provisions
ÀÁto padlock them in either the TEST or DISCONNECT position. Furthermore,
breaker cubicles are furnished with padlocking provisions on the drawout rails
Âto prevent unauthorized installation of a breaker that has been removed from
the cubicle for equipment or load maintenance.
This array of locking features should accommodate any type of “lockout -
tagout” procedure a customer may have implemented at their facility. All of the
padlock provisions on WaveProbreakersand AKD-10 equipment will accept any
combination of up to three padlocks with 1/4" to 3/8"
diameter shank.
•Expansion capabilities
AKD-10 switchgear is designed to be easily expanded to handle increased loading.
It is verycommon to specify“fully equipped futurebreaker” cubicles when
ordering a substation or line-up.The fully equipped future breaker cubicle con-
tains line and loadside primary disconnects, drawout rails and a cutout in the
cubicle door.At time of manufacture, the cubicle can also be outfitted with any
necessarymetering, protection, and control devices if so specified or these can
be added when the breaker is installed. Adding a new feeder can then be as
simple as removing a cover from the cubicle door and installing the breaker.
If the breaker arrangement in a line-up of AKD-10 yields blank compartments,
these can be specified as “field convertible blank compartments” or “space
compartments.” The space compartment has the lineside bus installed in the
cubicle but has neither the loadside bus nor the drawout rails. The cubicle door
is furnished without a cutout. Converting the space compartment to accept a
feeder breaker requires the addition of the loadside bussing, the drawout rails
and a new cubicle door.All of these items are added from the front of the
switchgear. Space compartments apply to 800 through 2000 amp frame
breakers only.
Standard bus configurations used in AKD-10 have provisions for future bus
extension built in. Should the switchgear have no future breaker nor space
compartments, additional vertical sections can be mechanically and electrically
connected to the AKD-10 line-up without modifications or the use of transition
sections. AKD-10 sections can also be added to existing AKD-8 equipment without
the use of transition sections.
À
Â
Á

7
• Key interlocks
This option allows locking of the circuit breaker in the open, trip-free position
when fully connected. Applicable schemes would be mechanical interlocking of
two breakers so only one can be closed at a time, or, in load center unit substa-
tions, interlocking of the primary switch and secondary main breaker such that
the secondary main must be open before the primary switch can be operated.
Single and double key locks are available. Key locking does not prevent operation
when the breaker is in the test or disconnect position.
Installation and maintenance are made easy with these design features:
• Accessibility
Accessibility to equipment compartments provides easy maintenance of the
breaker cubicle and control circuit elements (located in instrument panel), as well
as convenient inspection of the bolted bus connections.
• Cable space
Conduit entrance area meets NEC requirements. Extended depth frame options
are available in 7" and 14" sizes for applications requiring additional cable space.
Section width can also be increased (from 22" to 30" or 30" to 38") for additional
cable space.
• Breaker lifting device
Installed on top of the switchgear,this rail mounted hoist provides the means for
installing and removing breakers from the equipment. This is a standard feature
on outdoor walk-in construction and an optional featureon indoor construction.
•Control circuit isolation
Control wires are run between compartments in steel riser channels À.
Customer terminal blocks are located in metal enclosed wire troughs in the rear
cable area Á.Intercubicle wiring is run in a wireway on top of the switchgear
whereinterconnection terminal blocks are located Â.
À
Á
Â

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Enhancements for greater operator safety during maintenance operations
• IR scanning windows
Optional Infrared (IR) Scanning Windows can be provided in the switchgear rear
covers to facilitate the use of IR cameras for thermally scanning cable terminations.
Use of the IR windows minimizes exposure to live conductors while performing
this preventative maintenance operation. The IR windows are available in two
formats – an IR “transparent” mesh type and a crystal type. The transparent mesh
is suitable for NEMA 1 indoor applications. The crystal type is used for outdoor
NEMA 3R applications and can also be specified for indoor applications. Both
types of IR windows have a gasketed cover plate secured with tamper-resistant
hardware. Quantity and location of the IR windows are dependent on the breaker
stacking arrangement.
•Remote racking
All WavePro circuit breakers now include provisions to accept a remote racking
device that allows the operator / electrician to move the breaker anywhere
between the DISCONNECT and CONNECT positions without standing in front of
the circuit breaker cubicle. The remote racking device attaches to the circuit
breaker escutcheon (800-2000A frame) or to the circuit breaker frame (3200-
5000A frame) without opening the cubicle door, and it is powered from any standard
120 volt AC receptacle. A switch on the remote racking device sets the direction
of travel and the racking motor is provided with thermal overload protection. The
control box on the end of the 30-foot cord has a single pushbutton to control the
operation of the remote racking device, providing the operator the capability to
stand outside the arc flash boundary while racking a circuit breaker into or out
of its cubicle.
GE’s manufacturing processes and testing set the quality standards in the
switchgear industry:
• Paint finish
AKD-10 switchgear is protected by the “E-coat” paint system consisting of a
“cathodic electrodeposition” process employing the same principle used in
electroplating: An electrically charged object immersed in a bath of oppositely
charged particles will attract, and become coated with, those particles. In the
process, switchgear parts are conveyed through a seven-stage washing process,
where they are thoroughly cleaned, surface prepared, sealed and rinsed. Next,
the parts are immersed in an electrocoating tank, where they receive an epoxy
coating 0.7 to 0.8 mil thick on everysurface. After a rinse, the parts enter a curing
oven, where the coating is baked, fusing it to the metal and ensuring a hard,
uniform finish. The resulting ANSI-61 light gray paint finish far exceeds the
requirements of UL 1558 and ANSI C37.20.1, which requires, at a minimum, passing
a200-hour salt spray test. Periodic testing by an independent laboratory subjects
the “E-coat” to a minimum of 500 hours of a salt spray, 2,000 hours in a humidity
cabinet,plus acid and alkaline resistance tests, spot and stain tests, marring
tests and impact and flexibility tests. These tests prove that AKD-10 switchgear
can handle different severe operating environments.

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• Seismic Certification
AKD-10 switchgear with WavePro circuit breakers has been shake-table tested
in accordance with ICC-ES-AC156 to the requirements of IBC-2003. IBC is the
International Building Code, first released in 2000 by the International Code
Council (ICC). IBC incorporates and replaces the NBC, SBC and UBC.
AKD-10 has been tested to the following ratings:
Sds =1.4g, Ss=206%, Ip=1.5, for z/h > 0
Sds =2.0g, Ss=300%, Ip=1.5, for z/h = 0, where
Ssis the maximum considered earthquake response in a certain region
Sds is a measure of ground acceleration for given site and location conditions,
and is dependent on Ss (this is similar to specifying a UBC seismic zone)
Ipis the importance factor, measuring the criticality of the equipment to life
safety. Equipment with an Ipof 1.5 must be functional after a seismic
event, whereas equipment with an Ipof 1.0 does not need to be functional.
z/h specifies the location of the switchgear, z, in relation to the height of the
structure, h. z/h = 0 indicates the switchgear is installed at ground level. z/h
>0indicates the switchgear may be installed anywhere in the building.
AKD-10 has been certified for use in all IBC-2003 Seismic Use Groups, Occupancy
Importance Factors and Seismic Design Categories. In addition, AKD-10 has been
qualified to IEEE-693-1997 for Moderate and High Seismic loading conditions.
• Complete and accurate documentation
The AKD-10 design makes extensive use of computer-aided engineering and
design. All customer documentation is generated via linked engineering and pro-
duction systems for seamless ordering of materials and manufacturing of parts.
This integration and linking of systems assures consistently accurate customer
and manufacturing documentation and optimized equipment designs, all driven
by the engineer’s system inputs. Customer documentation includes a set of
mechanical and electrical drawings plus a bill of materials for the switchgear.
The mechanical drawings show the switchgear elevation with one-line diagram
and floorplan, circuit breaker schedule with trip ratings and cable data, and lay-
outs for all doors and panels that are used for device mounting. The electrical
drawings include three-line diagrams showing metering and relaying circuits,
schematics for breaker control and auxiliarycircuits, and wiring diagrams showing
the switchgear internal wiring. The bill of materials provides catalog and rating
information for the protection, instrumentation and control devices as well as
details on the WaveProcircuit breakers. Electronic files of the mechanical and
electrical drawings are available for customers who are integrating the
switchgear drawings into their plant electronic documentation.

10
Power management at its best
Inside every switchgear lineup flows a large amount of
information. The data is in the form of power (volts, amps,
waveforms) passing through the equipment. With the proper
devices and GE Enervista Power Management Control
System (PMCS), you can selectively access this wealth of
information. PMCS software is the easy-to-use software
package that turns a desktop computer into a virtual window
for tracking and controlling facility power. This system can
help you increase productivity, decrease downtime, improve
predictive maintenance, increase facility safety and diagnose
power quality problems. With just a few clicks of a mouse,
you can gain real-time access to the family of GE Multilin
and POWER LEADER™devices and most third party devices
or systems. With PMCS’s powerful analytical tools, you can
perform advanced power quality analysis, monitor energy
consumption, and even manage loads. These features are
all available through sophisticated graphics and a highly
intuitive interface. Enervista PMCS is both ModBusRTU®and
ModbusTCPIP Ethernet compatible. It all adds up to the most
flexible, open-architecture, high-performance power man-
agement system available today.
Additional features include:
•Built on the market-leading, industry-standard SCADA
software, CIMPLICITY and InTouch™
•Easy integration to existing SCADA/DCS systems using
published protocols (OPC and DDE)
•Dynamic, real-time graphic displays of component status
and operation
•Extensive device library
•Sophisticated waveform analysis tools
•Comprehensive alarm and event reporting to immediately
diagnose electrical system problems
•Energy cost management
•Predictive maintenance
•Power quality analysis
•Technical assistance, start-up support and on-site training
It should come as no surprise that virtually all switchgear is
now shipped with power management features.
Software options include the Enervista Energy Aggregator
module, which is offered separately or as an add-on to the
PMCS system. This package allows the user to look into
energy cost management and facility power quality.
New Suiteof EPM and PQM devices
We are proud to announce the introduction of the latest
suite of high technology EPM devices: EPM 6000 series and
EPM 9000 series. These devices boast a broad range of
capabilities for a variety of uses including: usage monitoring,
cost allocation, load monitoring, demand tracking, common
couplings with utilities, load and process control, and power
quality monitoring. This range of products has solid repre-
sentation on the moderate range of the metering spectrum,
providing solutions for panel mount and submetering appli-
cations (EPM 6000), as well as on the high end of the power
quality spectrum (EPM 9450Q and 9650Q). These newly
introduced meters greatly enhance GE’s PowerLeader™EPM
portfolio, from both price and functionality standpoints. The
GE Power Quality Meter System, PQM II, is also available for
applications requiring a feature set between the EPM 6000
and EPM 9000 offerings.
POWER LEADER™Power Management System

11
Power+™, Enhanced MicroVersaTrip Plus™ and
MicroVersaTrip PM™ trip unit systems
There are three trip unit systems available for WavePro™
Low Voltage Power Circuit Breakers — Power+, and enhanced
MicroVersaTrip Plus and MicroVersaTrip PM. All three systems
consist of the trip unit, the trip actuator, current sensors and
rating plugs. The term “trip unit systems” applies to the
combination of these four components, which form the circuit
breaker solid-state tripping system.
The Power+ trip unit is a new addition to the list of trip units
available on GE low voltage power circuit breakers. It continues
to use GE’s proven technique of measuring true rms currents
of both sinusoidal and harmonically distorted waveforms.
The frequent sampling (48 times per cycle per phase) allows
precise calculations of true rms current.The sampling rate
allows waveform measurements up to the 11th harmonic.
True rms sensing avoids potential under- or over-protection
problems associated with peak-sensing tripping systems.
The Power+ trip unit is identified by its plug-in modules and
rotaryswitches. The optional “target module” provides LED
targets for overload, shortcircuit and ground fault trips.
View and Reset push buttons are also provided to monitor
status, including a batterycheck LED. Standard 3-volt lithium
batteries, in the target module, power the indicating LED’s
(batteries are not required for trip unit operation). The “rating
plug module” serves the dual purpose of providing the trip
rating for the circuit breaker as well as ground fault protection
when required. All pickup and delay settings are selected
with detented rotary switches.
Standard functions:
•Rating plug with test port
Protection
•Long-time
•Instantaneous
Optional functions:
Protection
•Short-time protection, with selectable I2t
•Ground fault protection, with selectable I2t
•Defeatable ground fault (not UL)
Target module
•View and Reset buttons
•Battery check LED
• Longtime pickup/trip unit “health” LED
•LED’s for overload, short circuit, ground fault trips
Enhanced MicroVersaTrip Plus and MicroVersaTrip PM trip
units also measure true rms currents (and voltages for
MicroVersaTrip PM trip units). The higher sampling rate (64
times per cycle) allows waveform measurements up to the
31st harmonic to achieve accuracy of 99%.
MicroVersaTrip Plus and MicroVersaTrip PM trip units contain
adigital liquid crystal display with a five-button keypad for
local setup and readout of trip settings. The trip units have a
lithium battery for cold setup capability and viewing of targets
without external power. The LCD and keypad also provide a
three-phase ammeter and trip indicators.
The enhanced MicroVersaTrip (MVT) PM trip unit adds power
management system capability, including advanced metering
and protective relaying to the basic functions of the MVT
Plus. The MVT PM can be interfaced with either Modbus RTU
or Ethernet TCP/IP compatible systems.
All trip units utilize a series of interchangeable rating plugs
to establish the current rating of the breaker.
Standard functions:
•Rating plug with test port
Protection
•Long-time
•Instantaneous
Status
•Trip target (trip type)
•Trip information (magnitude and phase)
•Trip operations counters
Metering display
•Phase current (selectable among phases)
Optional functions:
•Short-time protection, with selectable I2t
•Ground fault protection, with selectable I2t
•Defeatable ground fault (not UL)
•Switchable instantaneous/short time and ground fault (not UL)
•Zone-selective interlock, for ground fault only or for both ground
fault and short-time protection
Additional functions available only with MicroVersaTrip
PM trip unit:
Communication and metering
Communication, metering and protectiverelaying
Communication:
Remote communication with POWER LEADER™Power Monitoring and
Control System (PMCS) software
Metering:
•Voltage (V)
•Energy (kWh/MWh/GWh)
• Real power (kW/MW)
•Total power (kVA/MVA)
•Demand power (kW/MW)
•Peak demand power (kW/MW)
•Frequency (Hz)
Protective relaying:
•Undervoltage
• Overvoltage
•Voltage unbalance
•Current unbalance
• Power reversal
Refer to the tables on page 53 for a listing of the overcurrent functions available on
Power+, MicroVersaTrip and PM trip units.

Table 12.3 shows the minimum and maximum fuse ratings allowed for WavePro breakers based on the breaker frame size
and rating plug. Maximum fuse ratings protect the circuit breaker under short circuit conditions with up to 200kA available.
Minimum fuse sizes are established based on UL continuous current tests when the fuse is mounted on the circuit breaker.
Table 12.3 Allowable current limiting fuse sizes for WavePro low voltage power circuit breakers (600Vac Max, 50/60 HZ)
*These fuse sizes are also available as “Welder Limiters.”
À Class L fuses less than 800A are not UL or CSA listed. Use Class J fuses for 600A and below. The maximum fuse rating is the largest fuse that tests show will result in proper perfor-
mance of the breaker and fuse in combination under short-circuit conditions. Only Gould- Shawmut fuses should be used for proper coordination.
Á Fuses are mounted in a separate roll-out element (fuses shipped as “XS” material).
 Integrally fused 1600A frame breakers (WPF-16) equipped with 2500A fuses can be furnished with rating plugs from 300-1600A. Breakers equipped with 2500A fuses
cannot be modified to accept lower rated fuses. WPF-16 breakers equipped with 2000A and lower fuses cannot be upgraded to 2500A fuses. The maximum trip rating
for a WPF-16 breaker is 1200A when furnished with other than 2500A fuses (see chartfor min-max fuse rating for each rating plug value). 2500A fuses preclude the use of
shutters in the breaker cubicle.
Breaker Type Frame Size Sensor Rating Rating Plug Gould-Shawmut Fuse Range À
Below 150A
150A 150A 300 / 350 / 400 / 450 / 500 / 600 /
225A 800* / 1000* / 1200* / 1600*A
300A
WPF-08 800A 400A 400A 400 / 450 / 500 / 600 / 800* / 1000* / 1200* / 1600*A
600A 600 / 800* / 1000* / 1200* / 1600*A
700A 800* / 1000* / 1200* / 1600*A
800A 800A 1000* / 1200* / 1600*A
400A and below 450 / 500 / 600 / 800* / 1000* / 1200* / 1600* / 2000* / 2500A Â
500A 500 / 600 / 800* / 1000* / 1200* / 1600* / 2000* / 2500A Â
600A 600 / 800* / 1000* / 1200* / 1600* / 2000* / 2500A Â
700A 800* / 1000* / 1200* / 1600* / 2000* / 2500A
Â
WPF-16 Â 1600A 800A 800A
1000A 1000* / 1200* / 1600* / 2000* / 2500A Â
1200A 1600* / 2000* / 2500A Â
1600A 1600A 2500A Â
WPS-20 Á 2000A 2000A 2000A and below 2000 / 2500A
WPS-32 Á 3200A 3200A 3200A and below 2000 / 2500 / 3000 / 4000A
WPS-40 Á 4000A 4000A 4000A and below 2000 / 2500 / 3000 / 4000 / 5000A
WPS-50 Á 5000A 5000A 5000A and below
12
Application data
Basic ratings
WavePro™low voltage power circuit breakers are available in
various levels of interrupting capacity (IC) and are identified
with a suffix in the model number. WPS indicates “standard
IC,” WPH indicates “high IC,” WPX indicates “extended IC” and
WPF indicates “integrally fused.”
High IC and extended IC breakers are used with larger kVA
substation transformers as well as in parallelling applications.
Fused circuit breakers take the IC rating to 200kA rms
symmetrical for the highest short circuit applications.
Refer to Table 12.1 for the interrupting capacity (IC) of
WavePro breakers at system operating voltages.
WPS — Standard IC WPH — High IC
WPX — Extended IC WPF — Integrally fused (200kAIC)
Table 12.2 Breaker/Sensor/Rating Plug Combinations for Power+™,
and MicroVersaTrip Plus™/PM™
Table 12.1 WavePro Breaker Interrupting Ratings
Breaker Frame
Rating (Amps) Sensor Rating Available Rating Plugs
800 150 60
À
,80, 100, 125, 150
800 400 150
À
,200, 225, 250, 300, 400
800/1600 800 300
À
,400, 450
À
,500, 600, 700, 800
1600 1600 600
À
,800, 1000, 1100
À
,1200, 1600
2000 2000 750
À
,800
À
,1000, 1200, 1500
À
,1600, 2000
3200 3200 1200, 1600, 2400, 3200
4000 4000 1600, 2000, 2500, 3000, 3600
À
,4000
5000 Á5000 Á3200
À
,4000
À
,5000
À
ÀThese rating plugs values are not available on Power+ trip units.
ÁPower+ trip unit is not available on WPS-50 (5000A) breaker.
Short-Circuit Ratings
Rated AC RMS Symmetrical kA
Voltage, With Without
Nominal Breaker Frame Short-Time Instantaneous Instantaneous
(max) Type Size (amps) Withstand Trip Trip
WPS-08 800 30 30 30
WPH-08 800 42 42 42
WPX-08 800 50 50 50
600 WPS-16 1600 42 42 42
WPH-16 1600 65 65 65
(635) WPS-20 2000 65 65 65
WPS-32 3200 65 65 65
WPH-32 3200 85 85 85
WPX-32 3200 85 85 85
WPS-40 4000 85 85 85
WPX-40 4000 85 85 85
WPS-50 5000 85 85 85
WPX-50 5000 85 85 85
WPS-08 800 30 30 30
WPH-08 800 42 42 42
WPX-08 800 65 65 65
480 WPS-16 1600 50 50 50
WPH-16 1600 65 65 65
(508) WPS-20 2000 65 65 65
WPS-32 3200 65 65 65
WPH-32 3200 85 85 85
WPX-32 3200 100 100 100
WPS-40 4000 85 85 85
WPX-40 4000 100 100 100
WPS-50 5000 85 85 85
WPX-50 5000 100 100 100
WPS-08 800 30 42 30
WPH-08 800 42 50 42
WPX-08 800 65 65 65
240 WPS-16 1600 50 65 50
WPH-16 1600 65 65 65
(254) WPS-20 2000 65 65 65
WPS-32 3200 65 85 65
WPH-32 3200 85 130 85
WPX-32 3200 100 130 100
WPS-40 4000 85 130 85
WPX-40 4000 100 130 100
WPS-50 5000 85 130 85
WPX-50 5000 100 130 100

13
Accessories
Auxiliary Switch –
Field installable kit available
(Breaker accessory)
The auxiliary switch is used for indication of breaker main
contact position. It is available on manually and electrically
operated breakers in either a 4-stage or 7-stage configura-
tion. The 4-stage switch yields 3NO and 3NC contacts while
the 7-stage switch yields 6NO and 6NC contacts. Normally
open (NO) contacts follow the breaker primary contact posi-
tion while normally closed (NC) contacts operate opposite
the breaker primary contacts. All auxiliary switch contacts
feature rugged double-break construction. Refer to breaker
wiring diagram 10057403P1 for contact configurations and
secondary disconnect terminations. Ratings of the auxiliary
switch contacts are shown in Table 13.1.
Table 13.1 Auxiliary switch ratings and contact operation
Table 13.2
Table 13.3
Bell Alarm with/without Lockout –
Field installable kit available
(Breaker accessory)
The bell alarm device is provided with two C-form contacts —
each C-form contact is 1NO and 1NC contact with a common
connection. The bell alarm device operates whenever the
breaker trips due to a protective function of the trip unit. It
can be used to provide remote indication of a fault trip
and/or disable electrical operation of breakers that may
have automatic control.
For Power+™and MicroVersaTrip Plus™trip units, the bell
alarm will operate for overload, short circuit and ground
fault trips. For MicroVersaTrip PM™trip units, the bell alarm
will operate for the same overcurrent trips plus any of the
protective relay trips that are enabled in the trip unit.
Tripping via the manual trip button, shunt trip, undervoltage
device or open fuse lockout will not operate the bell alarm.
The bell alarm can be furnished with a mechanical lockout
feature that will prevent the breaker from being manually
closed until the lockout is reset. Reset of the contacts and
lockout feature is accomplished by pushing the yellow “reset”
button on the breakerescutcheon. The reset button also serves
as a target indicator that the bell alarm has been operated.
Ratings of the bell alarm contacts are shown in Table 13.4
Table 13.4 Bell alarm contact ratings
Table 13.5
Electrical Lockout – Field installable kit available
(Breaker accessory)
The electrical lockout device provides a means to electrically
enable or disable manual closing of a circuit breaker. This
device must be energized prior to attempting to manually
close the breaker. Once the breaker is closed, loss of voltage
will not trip the breaker. A manual bypass interlock is provided
for initial startup. Refer to the undervoltage device for ratings
and coil characteristics. (Note: Interlocking of electrically oper-
ated breakers does not require an electrical lockout device.)
Table 13.6
Fuse and Fan – WP-50 (Breaker accessory)
The WP-50 breaker is provided with integrally mounted cooling
fans. Fan control is initiated by the trip unit which signals a fan
controller to turn the fans on and off when the load current
exceeds or drops below 4200 amperes. The fan motors require
120Vac and the fan controller requires 24Vdc auxiliary power.
Both the fans and the fan controller are wired to the breaker
secondary disconnect. The 24Vdc source can be the POWER
LEADER™power supply used for MicroVersaTrip PM™trip
units. 120Vac is normally provided by the switchgear control
power transformer. Power requirement for each fan is
0.2amps @ 120Vac (two fans installed).
Fuse Roll-out – Fuse carriage (Equipment accessory)
Afuse roll-out is used in conjunction with breakers that do
not have integral fusing and are applied in high available
short circuit current systems. The fuse roll-out is equipped
with wiring and a secondary disconnect for blown fuse
sensing. The sensing wiring is connected to the breaker-
mounted Open Fuse Lockout (OFLO). The OFLO will trip the
circuit breaker whenever a fuse in the roll-out opens due to
short circuit interruption. Note that the WavePro breaker
Field installable electrical lockout kit catalog numbers
Control voltage WP-08 / 16 / 20 WP-32 / 40 / 50
120Vac 50/60Hz WPELSF56120 WPELLF56120
240 Vac 50/60Hz WPELSF56240 WPELLF56240
24Vdc WPELSFDC024 WPELLFDC024
48Vdc WPELSFDC048 WPELLFDC048
110Vdc WPELSFDC110 WPELLFDC110
125Vdc WPELSFDC125 WPELLFDC125
250Vdc WPELSFDC250 WPELLFDC250
Field Installable Bell Alarm Kit Catalog Numbers
(kit provides choice of with or without lockout)
WP-08 / 16 / 20 WP-32 / 40 / 50
WPBASF WPBALF
Bell Alarm Contact Ratings
ACRatings DCRatings
6A@240Vac 0.5A @ 125Vdc
0.25A @ 250Vdc
Field installable auxiliaryswitch kit catalog numbers
Auxiliaryswitch WP-08 / 16 / 20 WP-32 / 40 WP-50
Four stage WPAUXSF4STG WPAUXLF4STG WPAUXXF4STG
Seven stage WPAUXSF7STG WPAUXLF7STG WPAUXXF7STG
Auxiliary switch contact operation
Breaker primarycontacts “a”-contact (NO) “b”-contact (NC)
Open or tripped Open Closed
Closed Closed Open
Auxiliary Switch Ratings ¬
Rating (Amperes)
Control Voltage Non-inductive Inductive
24 15 10
DC 125 10 5
250 5 5
AC - 60Hz 120 15 15
240 10 10
¬ 20A continuous rating of switch limited to 15A continuous rating of #16AWG
wire on drawout breakers

14
(WPS-20, 32, 40 or 50) must be ordered with the open fuse
lockout — character 3 in the breaker catalog number — when
it is to be used in a high short circuit application requiring
current limiting fuses. Key interlocking must also be ordered
for both the circuit breaker and fuse roll-out to prevent removal
or insertion of the fuse roll-out unless the circuit breaker is
open. Refer to the key interlock accessory for details.
Table 14.1 WavePro™Breaker Fuse Roll-outs
*Fuses are shipped as “XS” material
Hidden-On Button and Push Button Covers –
Field installable kit available (Breaker accessory)
All electrically operated WavePro breakers are provided with
amanual close button on the escutcheon. For applications
where manual closing is not desirable, the Hidden-On close
button can replace the standard manual close button. This
feature provides limited access to the mechanical close
mechanism. For emergency or supervised operation, a
0.100" diameter rod can be inserted through a hole in the
Hidden-On button to manually close the breaker. The
Hidden-On feature provides double insulation between the
operator and any live parts in the breaker. This feature is
typically used on a breaker that is electrically interlocked with
other breakers, such as in an automatic transfer scheme.
Sealable covers can be provided for the CLOSE and OPEN
buttons on the breaker escutcheon. These covers help prevent
accidental manual operation of the circuit breaker. Applications
include supply breakers for fire pumps (to prevent access to
the OPEN button) or critical feeders where accidental operation
may haveaserious impact on a process. The push button covers
can be applied to either the CLOSE or OPEN buttons or both.
Table 14.2
Key Interlocks –(Equipment accessory)
Optional provisions for a key interlock are located on the left
side of the breaker cubicle. Key interlocks are used to supervise
the closing of a circuit breaker or the operation of upstream
or downstream devices. Typical applications include interlocking
main and tie breakers to prevent paralleling, and interlocking
secondary main breakers with primary air switches. Breakers
can be locked in the open position only. Normally, the key is
removable when the lock bolt is extended, holding the breaker
in a trip-free condition. Certain key interlock applications
require the key to be removable when the breaker is able to
be closed or when the lock bolt is withdrawn. Up to two key
positions can be accommodated in each breaker cubicle.
Table 14.3 Key Interlock Applications
Lifting Tool –(Equipment accessory)
The lifting tool is the interface between the breaker and the
overhead breaker lifting device or any other portable lifting
means that may be used for installing and removing the
WavePro drawout breakers. It attaches to the breaker to
provide stability when lifting the breaker from its drawout
rails. Pickup points on the breaker and lifting tool are
designed for center-of-gravity lifting so that the breaker is not
subject to excess movement when removed from the cubicle.
The lifting tool for 800-2000A frame breakers features 3-point
lifting for easier installation of fused and unfused breakers.
Separate lifting tools are used for 3200-4000A breakers and
for 5000A breakers and fuse roll-outs.
Table 14.4 WavePro Breaker Lifting Tools
Open Fuse Lockout –OFLO(Breaker accessory)
The open fuse lockout device is provided with any fused
breaker. The OFLO consists of an individual trip solenoid for
each pole, connected directly across the fuse in that phase.
When any fuse blows, the solenoid is energized and trips the
breaker to prevent single-phasing. The breaker is mechanically
locked out and cannot be reclosed until the fuse is replaced
and the target indicator of the phase involved is reset.
When the fuses aremounted in a separate fuse roll-out
(used with WPS-20, WPS-32, WPS-40, WPS-50) the open fuse
lockout is wired to the fuses through secondary disconnects
on the roll-out and on the breaker. The OFLO utilizes dedicated
secondarydisconnect points, so no other breaker accessories
are affected.
Breaker application Key interlock description
Single key - key removable when breaker is
locked open
WP-08 / 16 / 20 / 32 / 40 / 50 Double key - both keys removable when
breaker is locked open
Double key - one key removable and one
key captive when breaker is locked open
Fuse Roll-out Single key - key removable when fuse roll-
out is racked in to CONNECT position
Field Installable Kit Catalog Numbers
WP-08 / 16 / 20 / 32 / 40 / 50
Hidden-On Button
WPHIDONKIT1
Sealable Push Button Covers (Qty. 2)
WPPBCVRKIT2
Fuse roll-out catalog numbers and ratings
For use with breaker Fuse roll-out Gould-Shawmut fuse range*
frame size catalog number
2000A (WPS-20) WP32FRE 2000 / 2500A
3200A (WPS-32) WP32FRE 2000 / 2500 / 3000 / 4000A
4000A (WPS-40) WP40FRE 2000 / 2500 / 3000 / 4000 / 5000A
5000A (WPS-50) WP50FRE 2000 / 2500 / 3000 / 4000 / 5000A
WP-08 / 16 / 20 WP-32 / 40 WP-50
Fuse Roll-out
2000 / 3200 /
4000A
Fuse Roll-out
5000A
Lifting
Tool 0324B4551G001 0247B8961G001 0247B8961G003 0247B8961G004 0247B8961G005

15
Operations Counter –
Field installable kit available (Breaker accessory)
The operations counter mounts on the breaker as a five-
digit, non-resettable counter actuated by the breaker
closing mechanism.
Table 15.1 Field Installable Operations Counter Kit catalog number
“PM-Ready” –(Breaker accessory)
In its most basic form, a manually operated WavePro breaker,
with a Power+™or MicroVersaTrip Plus™trip unit and no
other accessories, may be able to be supplied without sec-
ondary disconnect points. The “PM-Ready” option equips the
breaker with a secondary disconnect and inputs for 24Vdc
auxiliary power, communications and 3-phase voltage signals.
If the breaker is already equipped with any combination of
ground fault protection, zone selective interlocking, shunt
trip, auxiliary switch, bell alarm, undervoltage device, electric
lockout,MicroVersaTrip PM™or is electrically operated, the
PM-ready wiring is automatically included and does not have
to be specified. This “PM-Ready” option makes upgrading a
WavePro breaker to MicroVersaTrip PM as simple as changing
the trip unit.
Position Switch – By-pass switch or TOC truck-operated-
contact (Equipment accessory)
This accessoryis available with either twoNO and two NC or
six NO and six NC electrically separate contacts. The switch
changes state when the breaker is racked from the CONNECT
to the TEST position. The position switch is used to indicate
the drawout position of the breaker, enable/disable control
circuits, and/or bypass auxiliarycontacts when the breaker
is in the TEST/DISCONNECT/WITHDRAWN positions.
Table 15.2 Position switch ratings
Racking Tool –(Equipment accessory)
The racking tool is a special drivewrench with a square1⁄2"
socket that engages the racking mechanism on the breaker.
One racking tool is used for all WavePro™circuit breakers.
0324B4721G001
Without universal joint – all applications except as noted
below (standard)
0324B4724G001
With universal joint – must use for outdoor applications
when thereis a large frame (3200 – 5000A) breaker or fuse
rollout on the extreme right end of the line-up.Can be used
on all other breaker applications, also.
Remote Charge Indicator Switch –
Field installable kit available (Breaker accessory)
The remote charge indicator switch is a normally open or
normally closed dry contact that changes state when the
closing springs of the breaker are fully charged. This option is
available on manually or electrically operated breakers. The
contact is rated 4.0 amps at 120Vac and 0.5 amps at 125Vdc.
Table 15.3 Field Installable Remote Charge Indicator Switch Kit
catalog numbers
Remote Close Accessory with One-Shot Electronic Close
Circuit – Field installable kit available (Breaker accessory)
The remote close accessory is an electrically operated solenoid,
which when energized, closes the breaker. It is suitable for
control interlock schemes in which manual closing capability
would not be convenient or would be too slow. It is an
optional accessory for a manually operated breaker but is
always supplied with electrically operated breakers. The
remote close accessory consists of the “one-shot” electronic
close circuit, with built-in anti-pump feature, and the closing
solenoid. The remote close accessory is continuously rated
and operates as follows.
Applying control voltage to the close circuit produces a
250msec pulse to the closing coil which in turn releases the
energy stored in the closing springs. The anti-pump feature
prevents the breaker from repeatedly closing if the close signal
is maintained. A momentary close signal (1/2 second duration)
is sufficient to close the breaker — but if the close signal is
maintained while the breaker is closed, the signal must be
removed and then reapplied in order to reclose the breaker.
Reset time for the anti-pump circuit is approximately 2.5
seconds. For applications requiring rapid reclosureof a circuit
breaker, a momentary close signal should be used. This allows
the anti-pump circuit to reset while the closing springs are
recharging and the breaker is then ready to reclose without
any additional time delays. A close signal applied to a closed
breaker will provide a pulse to the close coil, but the closing
mechanism is mechanically blocked thereby preventing the
closing springs from discharging. The close signal must be
removed as stated above before the breaker can be reclosed.
Control power requirements for electrically charging and
closing the breaker are shown in Tables 15.3 and 16.1.
Breaker Frame and Operation Normally Open Normally Closed
WP-08 / 16 / 20 Manually or Electrically Operated WPRCISFKIT1 WPRCISFKIT2
WP-32 / 40 / 50 Electrically Operated WPRCILFKIT1 WPRCILFKIT3
WP-32 / 40 / 50 Manually Operated WPRCILFKIT2 WPRCILFKIT4
Position Switch Ratings
Control Voltage Rating (Amperes)
Non-inductive Inductive
AC - 60Hz 120 10 6
240 10 6
WP-08 / 16 / 20 WP-32 / 40 / 50
WPCTRSFKIT1 WPCTRLFKIT1

16
Table 16.1 WP-08 / 16 / 20 circuit breakers
Table 16.2 WP-32 / 40 / 50 circuit breakers
Table 16.3 Field Installable Remote Close Accessory Kit
catalog numbers
Secondary Disconnect – Field installable kit available
(Breaker and Equipment accessory)
Inputs and outputs to the circuit breaker arewired through
secondary disconnects located on the top of the breaker. The
plug-style secondarydisconnects engage mating disconnects
in the breaker cubicle when the breaker is in the TEST or
CONNECT position. Up to 72 dedicated points are available
so that all breaker accessories can be wired to dedicated
disconnect points. Refer to the breaker wiring diagrams
shown on pages 51 and 52 for breaker accessory wiring.
Table 16.4 Field Installable Secondary Disconnect catalog numbers
Shunt Trip –Field installable kit available (Breaker accessory)
The shunt trip allows remote electrical tripping of the circuit
breaker. It is usually controlled by a switch or push button
and may also be used in conjunction with protective relays
for automatic tripping (the breaker trip units do not require
the use of a shunt trip). The shunt trip coil is rated for inter-
mittent duty and is supplied with an auxiliary switch contact
that automatically removes control power following a breaker
trip. A shunt trip is always supplied on electrically operated
breakers. A redundant or 2nd shunt trip is available on
800-4000A frame breakers for special control applications.
See Table 16.5 for shunt trip operating characteristics.
Table 16.5 Shunt Trip Operating Characteristics
Table 16.6 Field Installable Shunt Trip 1 Kit catalog numbers
Table 16.7 Field Installable Shunt Trip 2 Kit catalog numbers
Spring Charging Motor –(Breaker accessory)
The spring charging motor is supplied on all electrically
operated breakers. The breaker closing springs are charged
automatically when control voltage is applied to the breaker.
When the springs are fully charged, a cutoff switch de-ener-
gizes the motor. The closing springs will recharge automatically
after the breaker closes unless an external switch contact is
wired into the spring charging circuit. If control power is lost
during the spring charging cycle, spring charging can be
completed using the integral manual pump handle. The
optional remote charge indicator contact can be supplied to
provide a contact closure when the springs are fully charged.
Control voltage WP-08 / 16 / 20 WP-32 / 40 / 50
120v-60Hz WPS2SF60120 WPS2LF60120
240v-60Hz WPS2SF60240 WPS2LF60240
24Vdc WPS2SFDC024 WPS2LFDC024
110-125Vdc WPS2SFDC125 WPS2LFDC125
250Vdc WPS2SFDC250 WPS2LFDC250
Control voltage WP-08 / 16 / 20 WP-32 / 40 / 50
70v-60Hz WPS1SF60070 WPS1LF60070
120v-60Hz WPS1SF60120 WPS1LF60120
120v-50Hz WPS1SF50120 WPS1LF50120
208v-60Hz WPS1SF60208 WPS1LF60208
208v-50Hz WPS1SF50208 WPS1LF50208
240v-60Hz WPS1SF60240 WPS1LF60240
240v-50Hz WPS1SF50240 WPS1LF50240
24Vdc WPS1SFDC024 WPS1LFDC024
48Vdc WPS1SFDC048 WPS1LFDC048
110/125Vdc WPS1SFDC125 WPS1LFDC125
250Vdc WPS1SFDC250 WPS1LFDC250
Nominal
control voltage
Operating
voltage range, V
Inrush
current, A
Sealed
current, A
70v-60Hz 70-127 3.75 3.75
120v-60Hz 95-127 12.3 10.8
120v-50Hz 95-127 7.6 6.7
208v-60Hz 165-220 3.2 2.6
208v-50Hz 165-220 3.8 3.1
240v-60Hz 190-254 3.9 3.4
240v-50Hz 190-254 4.7 4.1
24Vdc 14-30 8.3 8.3
48Vdc 28-60 4.5 4.5
110/125Vdc 70-140 2.0 2.0
250Vdc 140-280 1.0 1.0
WP-08 / 16 / 20 WP-32 / 40 / 50
Breaker side (female) WPSDSUBF1 WPSDSUBF1
Cell side (male) WPSDSUBM1 WPSDSUBM2
Control voltage WP-08 / 16 / 20 WP-32 / 40 / 50
120v-60Hz WPRCSF60120 WPRCLF60120
120v-50Hz WPRCSF50120 WPRCLF50120
240v-60Hz WPRCSF60240 WPRCLF60240
240v-50Hz WPRCSF50240 WPRCLF50240
48Vdc WPRCSFDC048 WPRCLFDC048
110Vdc WPRCSFDC110 WPRCLFDC110
125Vdc WPRCSFDC125 WPRCLFDC125
250Vdc WPRCSFDC250 WPRCLFDC250
Nominal
control
voltage
Voltage
range
Spring charging
motor (amps) Closing coil Charge /
close fuse
(amps)
Charging
time
(sec)
Inrush Sustained Inrush (amps)
120v-60Hz 104-127 25.0 8.1 15 1.5
120v-50Hz 104-127 25.0 8.1 151.5
240v-60Hz 208-254 11.7 3.5 15 1.3
240v-50Hz 208-254 11.7 3.5 15 1.3
48Vdc 38-56 22.0 16.5 15 2.0
110/125Vdc 100-140 25.0 7.0 15 1.7
250Vdc 200-280 13.0 3.2 15 1.7
Nominal
control
voltage
Voltage
range
Spring charging
motor (amps) Closing coil Charge /
close fuse
(amps)
Charging
time
(sec)
Inrush Sustained Inrush (amps)
120v-60Hz 104-127 25.0 5.0 15 0.9
120v-50Hz 104-127 25.0 5.0 15 0.9
240v-60Hz 208-254 12.0 3.0 15 0.9
240v-50Hz 208-254 12.0 3.0 15 0.9
48Vdc 38-56 40.0 10.0 15 1.5
110/125Vdc 100-140 27.0 5.0 151.0
250Vdc 200-280 13.0 3.0 15 1.0

17
Refer to Tables 16.1 and 16.2 for spring charging motor
operating characteristics.
Test kit –(Equipment accessory)
The test kit, catalog number TVRMS2, is a portable, battery-or
ac-powered unit that is used for trip unit health checks and
also provides functional trip and no-trip tests of the trip unit.
It can be used to defeat the ground fault function of the trip
unit when performing high current tests on the circuit breaker.
The test kit supplies 24Vdc auxiliary power for cold set-up and
viewing of trip targets on trip units not equipped with on-board
batteries. The display on the test kit can be used to verify
pickup and delay settings that have been programmed into
the trip unit. This test kit is designed for use with all Power+™,
MicroVersaTrip Plus™and MicroVersaTrip PM™trip units.
Undervoltage Device –Field installable kit available
(Breaker accessory)
The undervoltage device protects against harmful drops or
complete loss of voltage by automatically tripping the breaker.
The undervoltage device can be used to sense the drop or loss
of bus voltage through the use of voltage transformersor it can
monitor a control voltage source. This device is set to pick-up
at approximately 85% of rated voltage and will drop out
instantaneously between 30 and 60% (nonadjustable) of rated
voltage. An electronic module on the undervoltage device
provides accurate and repeatable operating characteristics.
The undervoltage device is available with an optional static time
delay unit. This unit offers a field-adjustable two- to six-second
delay between undervoltage occurrence and breaker trip, thus
preventing potential nuisance tripping due to momentary loss
of voltage. The time delay unit is mounted externally to the
breaker. It is rated 125Vdc or 250Vdc or 208/240Vac, 50/ 60Hz.
For any other AC source voltage, a control power transformer
with a 240v secondary, rated at least 100VA, is required. Refer
to Table 17.1 for undervoltage device operating characteristics.
Table 17.1 Undervoltage device operating characteristics
Table 17.2 Field Installable Undervoltage Device Kit catalog numbers
Table 17.3 Field Installable Time Delay Undervoltage Device Kit
catalog numbers (order Static Time Delay Unit separately)
Table 17.4 Static Time Delay catalog numbers
Repetitiveduty
Circuit breakers are designed primarily to perform the func-
tion of circuit interruption under short-circuit conditions.
Nevertheless, modern circuit breakers’ mechanisms are
capable of many operations under full-load operation and
in-rush conditions such as those encountered in motor starting
applications. Industrystandards havebeen established for
the minimum performance, as indicated in Table 18.1. With
adequate maintenance, GE breakers can be expected to
exceed the standards. WavePro™breakershave been designed
and tested to allow the user to extend the normal maintenance
service interval up to two times the ANSI recommendation —
asignificant benefit for continuous process and 7-X-24
operations. See Table 18.1 for additional information.
Power-operated circuit breakers, when operating under
usual service conditions, shall be capable of operating the
number of times specified in the following table. The operat-
ing conditions and the permissible effect of such operations
upon the breaker arelisted in Table 18.1 and the footnotes.
For instance, the breaker should be operated with rated
control voltage applied. The frequency of operation should
not exceed 20 in 10 minutes or 30 in an hour (rectifiersor
other auxiliary devices may further limit the frequency of
operation). Servicing consisting of adjusting, cleaning, lubri-
cating, tightening, etc., as recommended by the maintenance
manual, is to be done at no greater interval than shown in
the column titled “Number of operations between servicing”
in Table 18.1. No functional parts should require replace-
ment during the listed operations. The circuit breaker should
be in condition to carryits rated continuous current at rated
maximum voltage and perform at least one opening operation
at rated short-circuit current. After completion of this series
of operations, functional part replacement and general servicing
may be necessary.
Nominal
control voltage
Catalog
number
125Vdc TAKYUVT-1
250Vdc TAKYUVT-2
240Vac TAKYUVT-4
208Vac TAKYUVT-5
Control voltage WP-08 / 16 / 20 WP-32 / 40 / 50
208/240Vac 50/60Hz WPUVSFTD240 WPUVLFTD240
125Vdc WPUVSFTD125 WPUVLFTD125
250Vdc WPUVSFTD250 WPUVLFTD250
Control voltage WP-08 / 16 / 20 WP-32 / 40 / 50
120Vac 50/60Hz WPUVSF56120 WPUVLF56120
240Vac 50/60Hz WPUVSF56240 WPUVLF56240
24Vdc WPUVSFDC024 WPUVLFDC024
48Vdc WPUVSFDC048 WPUVLFDC048
110Vdc WPUVSFDC110 WPUVLFDC110
125Vdc WPUVSFDC125 WPUVLFDC125
250Vdc WPUVSFDC250 WPUVLFDC250
Nominal
control voltage
Operating
voltage range
Holding
current, A
120Vac Pickup at 80% of
nominal control
voltage, drop out at
30-60% (non-adj)
of nominal control
voltage
0.15
240Vac 0.07
24Vdc 0.58
48Vdc 0.32
110/125Vdc 0.15
250Vdc 0.07

18
This standard applies to all parts of a circuit breaker that
function during normal operation. It does not apply to other
parts, such as overcurrent tripping devices that function
only during infrequent abnormal circuit conditions.
Table 18.1 Repetitive duty and normal maintenance
(from ANSI C37.16 Table 5)
ÀServicing consists of adjusting, cleaning, lubricating, tightening, etc., as recommended
by the manufacturer. When current is interrupted, dressing of contacts may be
required as well. The operations listed are on the basis of servicing at intervals of six
months or less.
ÁWith closing and opening currents up to the continuous current rating of the circuit
breaker at voltages up to the rated maximum voltage (85% or higher power factor).
ÂThe number of operations was determined with closing currents up to 600% and
opening currents up to 100% (80% power factor or higher) of the continuous current
rating of the circuit breaker at voltages up to the rated maximum voltage. With
closing and opening currents up to 600% (50% power factor or less) of the continuous
current rating of the circuit breaker at voltages up to rated maximum voltage, the
number of operations shown should be reduced to 10% of the number listed in the
column.
ÃIf a fault operation occurs before the completion of the listed number of operations,
servicing is recommended and possible functional part replacement may be
necessary depending on previous accumulated duty, fault magnitude, and expected
futureoperations.
Design considerations
Standards and testing
WavePro™low voltage power circuit breakers are designed
and tested to meet ANSI Standards C37.13, C37.16, C37.17
and C37.50. The breakersarelisted to UL 1066 and CSA
C22.2, and labeled to certify compliance with the above
referenced standards.
Power factors lower than test values affect the circuit breaker’s
short-circuit current rating. The test circuit X/R ratio and
power factor required by ANSI C37.13 is 6.6 and 15% for
unfused breakers and 4.9 and 20% for fused breakers.
Table 18.2 Derating factor for systems with power factors
lower than test values
Temperature derating factors
The continuous current rating of WavePro breakers is based
on their use in an enclosure at 40° C ambient temperature
and 105° C maximum breaker temperature for Class A
insulation. Continuous current ratings of WavePro breakers
must be derated for ambient temperatures above 40° C.
(Trip unit ambient is limited to 70° C.)
Table 18.3 Continuous current derating factors
ÀTrip unit maximum
Altitude correction factors
When applying low voltage power circuit breakers at altitudes
greater than 6,600 feet, their continuous current rating must
be modified because a higher temperature use will be expe-
rienced for a given current rating. The voltage ratings must
also be modified because of the lower dielectric strength of the
air.The short-time and short-circuit current ratings are not
affected by altitude. However, the short-circuit current ratings
shall not exceed that of the voltage class beforederating.
Table 18.4 Altitude correction factors (as listed in ANSI C37.13)
Humidity
Ferrous parts are zinc-plated for corrosion protection except
for some parts made from alloy steels that are inherently
corrosion resistant. Current-carrying parts are silver- or tin-
plated for corrosion protection and to assure electrical conti-
nuity. Heaters may be added to indoor sections operating in
high humidity environments. Heaters are mounted in the
bus/ cable compartment in the rear of each section.
Table 18.5 Insulation values (Dielectric test)
Table 18.6 Operating time (Same for all frame sizes)
Close
Time from energizing closing
circuit until contacts touch
Electrically operated 5Cycles
Open
Maximum clearing time
With instantaneous overcurrent trip 3Cycles
With shunt trip 3.5 Cycles
kV
Breaker 2.2
Control Wiring 1.5
Closing Motor 0.9
Altitude Rating correction factor
Meters Feet Continuous current Voltage
2000 6600 (and below) 1.00 1.00
2600 8500 0.99 0.95
3900 13000 0.96 0.80
Ambient temperature (°C) Derating factor
40 1.00
45 0.95
50 0.89
55 0.84 À
60 0.77
65 0.71
70 0.63
System short-
circuit power
factor (%)
System
X/R ratio
Derating factors for breaker
short-circuit current rating
Unfused Fused
20 4.90 1.000 1.000
15 6.60 1.000 0.938
12 8.27 0.966 0.902
10 9.95 0.938 0.875
8.5 11.72 0.920 0.847
7 14.25 0.902 0.826
5 20.00 0.875 0.794
Circuit
breaker
frame size
(amperes)
Number of
operations
between
servicing
Number of operations
rated continuous
current switching
ÀÁ Ã
Number of
operations
on-load closing
and opening À
Number of
operations
in-rush current
switching ÂÃ
800 1750 2800 9700 1400
1600 500 800 3200 400
2000 500 800 3200 400
3200 250 400 1100 —
4000 250 400 1100 —
5000 250 400 1100 —

19
Time current tripping characteristics
WavePro™low voltage power circuit breaker time current
curves are the engineering documents that define technical
performance characteristics of the devices. Multiples of
circuit breaker trip rating are shown on the top and bottom
horizontal axis, with time in seconds on the vertical axis.
Minimum and maximum clearing time is readily determined
through the characteristic curves. Tripping characteristics
meet ANSI, NEMA and UL standards for rating and calibration.
Table 19.1 Time current curves
Cable terminations
Cables used for low voltage power circuit breaker terminations
in AKD-10 must have minimum 90°C insulation while the
cables’ ampacity will be based on a 75°Crating.This meets
the requirements of ANSI C37.20.1, UL1558 and the National
Electrical Code. Refer to the example for typical cable
ampacities (derating factorsthat may apply arenot shown).
Table 19.2 Example (from NEC Table 310.16)
Cable size 90°C rating (ref.) 75°C rating (of 90°C cable)
500kcmil 430 Amps 380 Amps
600kcmil 475 Amps 420 Amps
Trip device Trip elements Curve REF
Power+™
MicroVersa Trip Plus™
MicroVersa Trip PM™
LSI DES-001 pg. 20
GDES-002 pg. 21
MicroVersa Trip Plus
or PM Non-std. G F DES-026 pg. 22