Eaton NEMA 1 User manual

Instruction Booklet IB157001EN Effective May 2015
Fixed capacitor banks (Unipump, Unipak, and Unipak
detuned filter) low voltage (600 V and below), NEMA 1
(indoor) and NEMA 3R (outdoor) enclosed versions
Introduction ..............................2
Manual organization ......................2
Product overview ........................2
Safety precautions .......................2
Catalog numbering systems ...............2
Receiving ..............................3
Installation ...............................3
Preparation for installation .................3
Installation locations......................3
Installation procedures....................3
Post installation evaluation.................4
Installation instructions for
Unipak detuned filter .....................4
Electrical connections ....................7
Startup and commissioning ................7
Alternate system voltage and frequencies ....7
Operating features.........................8
Maintenance .............................8
Retorque ..............................8
Troubleshooting ...........................9
General specifications .....................10
Warranty ...............................10
Contents
Description Page

2
Instruction Booklet IB157001EN
Effective May 2015
Fixed capacitor banks (Unipump, Unipak, and Unipak
detuned lter) low voltage (600 V and below), NEMA 1
NEMA 3R (outdoor) enclosed versions
EATON www.eaton.com
Introduction
Manual organization
This manual is intended to serve as a general guide for the
installation, operation, and maintenance of Eaton’s fixed power factor
capacitor banks. These instructions must be read carefully before
unpacking, installation, operation, and maintenance of this bank.
Product overview
Eaton’s Unipak, Unipump, and Unipak filter series fixed power factor
capacitor banks are intended for correction of (displacement) power
factor at and upstream of the connection point of the capacitor
bank. Eaton’s Unipak detuned filters will also avoid resonance, if
applied correctly, in addition to providing reactive power (VARs) for
displacement power factor correction.
Safety precautions
mWARNING
ELECTRICAL SHOCK HAZARD. IMPROPER INSTALLATION COULD CAUSE
DEATH, INJURY AND EQUIPMENT DAMAGE. FOLLOW ALL WARNINGS AND
CAUTIONS. COMPLETELY READ AND UNDERSTAND THE INFORMATION
IN THIS INSTRUCTION MANUAL BEFORE ATTEMPTING TO INSTALL OR
OPERATE THIS EQUIPMENT.
IMPROPER WIRING COULD CAUSE DEATH, INJURY, AND/OR EQUIPMENT
DAMAGE. ONLY LICENSED/QUALIFIED ELECTRICIANS WHO ARE TRAINED
IN THE INSTALLATION AND SERVICE OF ELECTRICAL SERVICES ARE TO
INSTALL AND SERVICE THIS EQUIPMENT. HAZARDOUS VOLTAGES ARE
PRESENT INSIDE THE EQUIPMENT DURING NORMAL OPERATION. FOLLOW
ALL SAFE WORK PRACTICES TO AVOID ELECTRICAL SHOCK.
ARC FLASH DURING INSTALLATION COULD CAUSE INJURY. USE
APPROPRIATE SAFETY PRECAUTIONS AND EQUIPMENT FOR ARC
FLASH PROTECTION.
These units should be installed, operated, and maintained by
qualified personnel as defined by OSHA 29CFR1910 subpart 5
and by a competent person familiar with electrical installations
rated 600 V.
These instructions do not cover all details, variations, or combinations
of the equipment, its installation, checkout, and safe operation.
Care must be exercised to comply with local, state, and national
regulations, as well as safety practices for this class of equipment.
These instructions are not a substitute for training and operating
procedures for this type of equipment.
Improper handling may cause electrical shock, fire, and incorrect
operation including reduction in useful life of the capacitor bank.
Consult the capacitor cell resin Material Safety Data Sheet for
specific handling, environmental, health, and safety information
prior to use.
Capacitors are electrical energy storage devices and can store
electrical energy indefinitely unless properly discharged. Each
capacitor is fitted with a discharge resistor designed to reduce
the residual voltage in the capacitor to 50 V or less after a minute.
Follow all caution and warning nameplates before attempting to
install, operate, or service the capacitor bank.
Before handling the capacitor, disconnect all and any electrical
power supply from the circuit into which the capacitor bank is being
installed. Extreme caution must be taken to prevent accidental
contact with the terminals of the capacitor during installation,
operation, and service of this equipment. Accidental contact with
the capacitor, if not properly discharged, can result in personal injury
or death.
The customer is responsible for determining the correct application
and suitability of the purchased unit for their application and for
installing, connecting, operating, and maintaining the capacitor
in accordance with this manual and within the specifications of
the capacitor.
These instructions may not address all or specific requirements
of national and/or local codes and regulations, nor to any site or
customer-specific requirements that may be applicable to the
installation of this capacitor bank. Following these instructions,
even in its entirety, would not automatically ensure compliance
with codes or regulation requirements.
Catalog numbering systems
Table 1. Unipump catalog numbering system
a Ratings are based on 60 Hz operation.
Table 2. Unipak catalog numbering system
a Ratings are based on 60 Hz operation.
b Standard units have replaceable fuses with cleared fuse indication. Unfused units are intended for
use with upstream overcurrent protection, as in the case of motor-connected capacitors.
2 2 3 J M R
kVAR rating
at nameplate
voltage a
2 = 2
2X = 2.5
3 = 3
4 = 4
5 = 5
6 = 6
7X = 7.5
10 = 10
12X = 12.5
15 = 15
17X = 17.5
20 = 20
25 = 25
Rated voltage
2= 240 V
4= 480 V
6= 600 V
Number of phases
3= Three-phase
Capacitor
bank type
J= Unipump
Cell type
R= Round
Capacitor cell
construction
M= Metallized
polypropylene
50 4 3 PM U R F
kVAR rating at
nameplate voltage a
1 = 1
1X = 1.5
2 = 2
2X = 2.5
3 = 3
4 = 4
5 = 5
6 = 6
7X = 7.5
8= 8
9= 9
10 = 10
12X = 12.5
15 = 15
17X = 17.5
20 = 20
22X = 22.5
25 = 25
27X = 27.5
30 = 30
32X = 32.5
35 = 35
37X = 37.5
40 = 40
42X = 42.5
45 = 45
50 = 50
55 = 55
60 = 60
65 = 65
70 = 70
75 = 75
80 = 80
85 = 85
100 = 100
120 = 120
125 = 125
140 = 140
150 = 150
160 = 160
180 = 180
200 = 200
225 = 225
250 = 250
300 = 300
350 = 350
400 = 400
Nameplate
voltage
2= 240 V
4= 480 V
6= 600 V
Number of
phases
3= Three-phase
Capacitor
bank type
U= Unipak
Cell type
R= Round
Option code b
F = Standard
replaceable
fuses with
cleared fuse
indication
N = Optional
unfused
Capacitor cell construction
PM = Metallized
polypropylene
standard-duty with
pressure interrupter
H = Metallized
polypropylene heavy-
duty with pressure
interrupter

3
Instruction Booklet IB157001EN
Effective May 2015
Fixed capacitor banks (Unipump, Unipak, and Unipak
detuned lter) low voltage (600 V and below), NEMA 1
NEMA 3R (outdoor) enclosed versions
EATON www.eaton.com
Receiving
Check the capacitor bank when receiving to verify that there is no
shipment or handling damage during transit. Minor damage such as
scratches or small dents to the outer enclosure will not inhibit the
capacitor’s performance, but units with large dents or leaks should
not be installed. In case of major damage, file a claim against the
carrier and also notify the nearest Eaton sales office for instructions
regarding the disposition of the capacitor bank.
Check the capacitor’s nameplate to verify that the nameplate voltage
rating matches the system and the applied voltage.
Installation
Install capacitor bank in accordance with all applicable local electrical
standards (NECTNFPA 70, etc.). Failure to properly install capacitor
bank in accordance with local electrical safety standards may cause
electrical shock, fire, and incorrect operation including reduction in
useful life of the capacitor bank.
Preparation for installation
The capacitor bank storage temperature range is –40 °C to +55°C,
and the operating temperature range is –40 °C to +46 °C. For
optimal equipment life, prepare to install the capacitor bank in an
area free of external heat sources, such as direct sunlight.
For optimal equipment life, a harmonic resonance evaluation
should be performed prior to installation, particularly if an unfiltered
capacitor bank is used.
Installation locations
Capacitor banks should be located in a well-ventilated area with a
minimum of 3 inches of clearance around all sides and top of the
enclosure to ensure good air circulation.
Equipment rated for indoor use should be installed indoors in a dry
environment. Outdoor rated units shall be shielded from the radiant
heat of direct sunlight by a canopy or a sunshade.
Both for indoor and outdoor installations, the maximum ambient
temperature should not exceed 40 °C (104 °F) and the annual average
temperature should not exceed 35 °C (95 °F). Higher location ambient
temperatures will cause capacitor failure and reduction in useful life of
the capacitor, including instantaneous failures.
Installation procedures
Mechanical installation
To open the capacitor bank enclosure, remove the screws holding
the top cover. Grasp the front cover and tilt it forward and down to
separate it from the base unit.
Inspect the internal capacitor cells to verify that no physical damage
has occurred during shipment or handling.
Inspect and ensure that the power conductors are secured and tight
in their terminals by applying a gentle tug on the wires on both ends.
Inspect the discharge resistors for any marks of damage or cracks
and that they are seated and intact in the terminal.
If any signs of loose or cracked discharge resistor is noticed, stop
and do not proceed with the installation and immediately notify your
nearest Eaton sales person for further instructions.
Mechanically secure the capacitor bank to either the wall or the floor
using anchor fasteners.
Electrical installation
In accordance with NECT460, conductors should be sized for at
least 135% of the nameplate full load amps of the capacitor unit.
NEC460 also requires that the power factor capacitors must be
provided with a disconnecting means and overcurrent protection.
When connecting the capacitor bank on the load side of a motor
starter overload relay, it is not necessary to provide additional
disconnecting or overcurrent protection devices.
Fuses should be rated at least 165% of rated capacitor current.
A circuit breaker should be rated at least 135% of the rated
capacitor current.
Eaton requires that all customer feeder supply wiring be 90 °C rated
stranded copper wire sized and used at its 75 °C ampacity rating.
Observe all torque requirements for electrical connections. When
making connection using crimp terminals, be sure to use the
crimping tool recommended by the terminal manufacturer. Wire and
cable connections having improper torque may cause loosening of
the electrical connections resulting in localized heating or fire. The
unit should be cleaned of any debris, metal shavings, insulation, and
conductor strippings before being put into service.
An appropriately sized ground conductor should always be
connected to the ground terminal. Lack of ground connection or
improper grounding may result in electric shock or fire or inability
of ground fault protection to operate.
Conduit entry location should be selected so as to allow the
straightest connection to the provided mechanical lugs without
compromising the conductors’ bending radii. Connect the capacitor
bank by securing power conductors into the provided mechanical
lugs and tighten to the torque provided in Table 3. Connect ground
conductor into grounding lug and secure by tightening per torque
requirements below.
Conduit sizes, tray sizes, and cable ampacity must be according
to the National Electrical Code or applicable electrical codes in the
customer’s area.
Proceed to connect the feeder cables to the disconnecting switch/
circuit breaker. This operation must be performed with the
equipment completely de-energized.
Table 3. Recommended torque
Torque based on conductor size Torque based on bolt size
AWG Pound-inch Inches Pound-inch
30–10 80 1/8 45
8 80 5/32 100
6–4 165 3/16 120
3 275 7/32 150
2 275 1/4 200
1 275 5/16 275
1/0–2/0 385 3/8 375
3/0–4/0 500 1/2 500
250–350 650 9/16 600
400 825
500 825
600–750 1000
ote:N Follow the lower torque value between the conductor size
and the bolt size.

4
Instruction Booklet IB157001EN
Effective May 2015
Fixed capacitor banks (Unipump, Unipak, and Unipak
detuned lter) low voltage (600 V and below), NEMA 1
NEMA 3R (outdoor) enclosed versions
EATON www.eaton.com
Post installation evaluation
To ensure proper installation and maintain warranty.
Electrical test
Only a qualified electrician should perform the following test, making
sure appropriate PPE and arc flash boundaries are followed and met.
Perform insulation-resistance tests with all three-phase terminal(s)
shorted to case for 30 seconds. Test voltage and minimum
resistance shall be as follows:
Maximum rating
of equipment
in volts
Minimum
test voltage,
DC in volts
Recommended minimum
insulation resistance
in mega-ohms
250–500 500 25
600 1000 100
If the insulation resistance values are less than the recommended
minimum, stop and do not proceed to energize the unit. Contact
Eaton for troubleshooting.
Installation instructions for Unipak filter
All instructions and requirements in this manual also apply to Unipak
detuned filter. Only additional and specific requirements for Unipak
filter are noted below.
Unipak detuned filter is supplied as a two-part unit. One part
is the Unipak (capacitor enclosure) and the other part is the
reactor enclosure.
Table 4. Unipak detuned filter catalog numbering system
Tuning point
Y = 4.2nd harmonic
(standard)
Blank = 4.7th harmonic
Internal protection
F = Replaceable fuses
with cleared fuse
indication
75 4 3 2 HM U R F Y
kVAR rating
at nameplate
voltage a
15 = 15
25 = 25
30 = 30
50 = 50
60 = 60
75 = 75
100 = 100
125 = 125
150 = 150
200 = 200
250 = 250
Nameplate
voltage
2= 240 V
4= 480 V
6= 600 V
Number of
phases
3= Three-phase
Detuned filter type
U= Unipak
Cell Type
R= Round
Capacitor cell construction
HM = Heavy-duty metallized
polypropylene with
pressure interrupter
Number of
enclosures
2= 2
a Units are designed for 60 Hz operation. Consult factory for other frequencies.
Mechanical installation instructions for Unipak filter
Reactor enclosure shall be positioned and mechanically secured
next to the capacitor enclosure with a minimum 9-inch separation
(minimum 12-inch separation preferred) between the two enclosures
to allow for ventilation and interconnecting conductor bending radii.
Electrical installation instructions for Unipak filter
Customer conductors will be landed in the reactor enclosure, and
the capacitor and reactor enclosure are to be field interconnected
by the customer using the same size and type cable as the supply/
feeder conductor. A standard interconnection drawing is shown
in Figure 1. Mechanical lugs are provided in both enclosures for
interconnection of the two parts.
Electrical test instructions for Unipak filter
Only a qualified electrician should perform the following test, making
sure appropriate PPE and arc flash boundaries are followed and met.
Perform an insulation-resistance test at the reactor with all three
incoming phase conductors shorted to ground for 30 seconds.
Ensure the two 1 amp control fuses are isolated/disconnected
from the test path. Test voltage and minimum resistance shall be
as follows:
Maximum rating
of equipment
in volts
Minimum
test voltage,
DC in volts
Recommended minimum
insulation resistance
in mega-ohms
250–500 500 25
600 1000 100
If the insulation resistance values are less than the recommended
minimum, stop and do not proceed to energize the unit. Contact
Eaton for troubleshooting assistance.
Table 5. Unipump wire sizes
240 Vac 480 Vac 600 Vac
kVAR Cable size (AWG) kVAR Cable size (AWG) kVAR Cable size (AWG)
2 14 2 14 5 14
2.5 14 2.5 14 7.5 14
3 14 3 14 10 14
4 14 4 14 12.5 12
5 12 5 14 15 12
6 12 6 14 17.5 8
7.5 12 7.5 14 20 8
10 14
12.5 12
15 12
17.5 8
20 8
25 8
ote:N Ratings based on 60 Hz operation.

5
Instruction Booklet IB157001EN
Effective May 2015
Fixed capacitor banks (Unipump, Unipak, and Unipak
detuned lter) low voltage (600 V and below), NEMA 1
NEMA 3R (outdoor) enclosed versions
EATON www.eaton.com
Table 6. Unipak capacitor bank lug sizes
240 V 480 V 600 V
kVAR Phase wire lug size (AWG) Ground wire lug size (AWG) kVAR Phase wire lug size (AWG) Ground wire lug size (AWG) kVAR Phase wire lug size (AWG) Ground wire lug size (AWG)
1 10–18 2–14 1 10–18 2–14 5 10–18 2–14
1.5 10–18 2–14 2 10–18 2–14 7.5 10–18 2–14
2 10–18 2–14 2.5 10–18 2–14 10 10–18 2–14
2.5 10–18 2–14 3 10–18 2–14 12.5 10–18 2–14
3 10–18 2–14 4 10–18 2–14 15 2–14 2–14
4 10–18 2–14 5 10–18 2–14 17.5 2–14 2–14
5 2–14 2–14 6 10–18 2–14 20 2–14 2–14
6 2–14 2–14 7.5 10–18 2–14 22.5 2–14 2–14
7.5 2–14 2–14 8 10–18 2–14 25 2–14 2–14
8 2–14 2–14 9 10–18 2–14 27.5 2–14 2–14
10 2–14 2–14 10 10–18 2–14 30 2–14 2–14
12.5 2–14 2–14 12.5 2–14 2–14 32.5 2–14 2–14
15 2–14 2–14 15 2–14 2–14 35 2–14 2–14
17.5 2–14 2–14 17.5 2–14 2–14 37.5 2–14 2–14
20 2–14 2–14 20 2–14 2–14 40 2–14 2–14
22.5 2–14 2–14 22.5 2–14 2–14 42.5 2–14 2–14
25 2–14 2–14 25 2–14 2–14 45 2–14 2–14
27.5 2–14 2–14 27.5 2–14 2–14 50 2–14 2–14
30 14–2/0 2–14 30 2–14 2–14 55 2–14 2–14
32.5 14–2/0 2–14 32.5 2–14 2–14 60 2–14 2–14
35 14–2/0 2–14 35 2–14 2–14 65 14–2/0 2–14
37.5 6–250 kcmil 2–14 37.5 2–14 2–14 70 14–2/0 2–14
40 6–250 kcmil 2–14 40 2–14 2–14 75 14–2/0 2–14
42.5 6–250 kcmil 2–14 42.5 2–14 2–14 80 14–2/0 2–14
45 6–250 kcmil 2–14 45 2–14 2–14 85 14–2/0 2–14
50 6–250 kcmil 2–14 50 2–14 2–14 90 14–2/0 2–14
60 6–250 kcmil 2–14 55 14–2/0 2–14 100 6–250 kcmil 2–14
70 4–500 kcmil 14–2/0 60 14–2/0 2–14 120 4–500 kcmil 14–2/0
75 4–500 kcmil 14–2/0 65 14–2/0 2–14 125 4–500 kcmil 14–2/0
80 4–500 kcmil 14–2/0 70 14–2/0 2–14 140 4–500 kcmil 14–2/0
90 4–500 kcmil 14–2/0 75 14–2/0 2–14 150 4–500 kcmil 14–2/0
100 4–500 kcmil 14–2/0 80 6–250 kcmil 2–14 160 4–500 kcmil 14–2/0
120 4–500 kcmil 14–2/0 85 6–250 kcmil 2–14 180 4–500 kcmil 14–2/0
140 4–500 kcmil 14–2/0 90 6–250 kcmil 2–14 200 4–500 kcmil 14–2/0
150 4–500 kcmil 14–2/0 100 6–250 kcmil 2–14 225 4–500 kcmil 14–2/0
160 4–500 kcmil 14–2/0 120 4–500 kcmil 2–14 250 4–500 kcmil 14–2/0
180 4–500 kcmil 14–2/0 125 4–500 kcmil 14–2/0 300 4–500 kcmil 14–2/0
200 4–500 kcmil 14–2/0 140 4–500 kcmil 14–2/0 350 4–500 kcmil 14–2/0
150 4–500 kcmil 14–2/0 400 4–500 kcmil 14–2/0
160 4–500 kcmil 14–2/0
180 4–500 kcmil 14–2/0
200 4–500 kcmil 14–2/0
225 4–500 kcmil 14–2/0
250 4–500 kcmil 14–2/0
300 4–500 kcmil 14–2/0
350 4–500 kcmil 14–2/0
400 4–500 kcmil 14–2/0

6
Instruction Booklet IB157001EN
Effective May 2015
Fixed capacitor banks (Unipump, Unipak, and Unipak
detuned lter) low voltage (600 V and below), NEMA 1
NEMA 3R (outdoor) enclosed versions
EATON www.eaton.com
F-c
Cleared fuse light
Cleared fuse light
Cleared fuse light
A2
Incoming
1 A
F-2
1 A
F-1
270 k
Ts-1 Ts-2
Capacitor enclosure
Overtemperature light
Customer incoming
conductor connection
(90 °C copper
conductor cables
at 75 °C ampacity)
Customer
interconnect
Three-phase internally
delta connected capacitor
A1
B2 B1
C2 C1
A
B
C
Reactor enclosure
F-c
F-c
Three-phase
reactor
Customer
interconnect
terminals
provided with
Unipak detuned filter
Ground
terminal
Ground
terminal
Bonding
conductor
Connection conductors
and conduit provided
by customer. Same size
as incoming conductors.
Customer
termination
terminals
provided.
Reactor thermal switches
(embedded in windings)
(normally closed)
Note: 6-inch minimum clearance on reactor top and sides for ventilation. 12-inch clearance
is preferred. See equipment drawings for Unipak detuned filter wire lug sizes.
Figure 1. Connection schematic
Motor
Motor
feed
Motor
starter
Fused
safety
switch or
breaker
Install
at location:
Capacitor
C
Capacitor
B
Capacitor
A
Thermal
overload
B A
C
Figure 2. Capacitor connection locations

7
Instruction Booklet IB157001EN
Effective May 2015
Fixed capacitor banks (Unipump, Unipak, and Unipak
detuned lter) low voltage (600 V and below), NEMA 1
NEMA 3R (outdoor) enclosed versions
EATON www.eaton.com
Electrical connections
Capacitors should be ideally connected to as close to the inductive
load as possible for optimum power factor correction.
At load
Three options exist for installing capacitors in the motor circuit.
See Figure 2 to determine which option is best for each motor.
Location A—motor side of overload relay
• New motor installations in which overloads can be sized in
accordance with reduced current draw required.
Location B—line side of starter
• Existing motors when overload rating surpasses code
Location C—line side of starter
• Motors that are jogged, plugged, reversed
• Multi-speed motors
• Starters with open transition
• Reduced voltage starters
At the service feeder
Main bus
or feeder
Capacitor
bank
Fused switch or
circuit breaker
Figure 3. Service entrance schematic
When correcting entire plant loads, capacitor banks can be installed
at the service entrance, if load conditions and transformer size
permits. If the amount of correction is too large, some capacitors
can be installed at individual motors or branch circuits.
If the amount of connected capacitance is greater than required,
a leading power factor may result during light load conditions.
A system evaluation may be required to determine if the leading
power factor and associated voltage rise during light load conditions
are acceptable.
When capacitors are connected to the bus, feeder, motor control
center, or switchboard, a disconnect and overcurrent protection
must be provided.
Startup and commissioning
Connect power to the capacitor bank (energize through upstream
switch). Using an ammeter, measure capacitor current in each phase
and verify that it is consistent (±10%) with the rated current (see
Table 7). Using a voltmeter, measure phase-to-phase voltage and
verify that it is consistent (±10%) with the voltage rating stated on
the nameplate.
The full load ampacity of the capacitor is calculated as:
Full Load Amps = Rated kVAR x 1000 / (Sq-rt 3 x Rated Voltage)
It is recommended that both the voltage and the current be
measured again after approximately 24 hours of operation.
During normal operation, cleared fuse indicator lights will NOT
be illuminated. An illuminated lamp indicates that a fuse has
cleared (opened).
Alternate system voltages and frequencies
Power factor capacitors may be applied to power systems with
actual voltage equal to or less than the rated capacitor voltage but
the effective kVAR will be reduced. Unfiltered capacitors may also
be used on either 50 Hz or 60 Hz systems but again with de-rating.
Contact factory for availability of 50 Hz filtered capacitor banks, as
the reactors are frequency specific. Never connect capacitors to a
system with a higher voltage than the capacitor rated voltage.
Actual kVAR = Rated kVAR x (Applied Voltage / Rated Voltage)^2 x
(Applied Frequency / Rated Frequency)

8
Instruction Booklet IB157001EN
Effective May 2015
Fixed capacitor banks (Unipump, Unipak, and Unipak
detuned lter) low voltage (600 V and below), NEMA 1
NEMA 3R (outdoor) enclosed versions
EATON www.eaton.com
Table 7. Rated current values in amperes
kVAR 240 Vac 480 Vac 600 Vac
1 2.4 — —
1.5 3.6 1.8 —
2 4.8 2.4 —
2.5 6 3 —
3 7.2 3.6 —
4 9.6 4.8 —
5 12 6 4.9
6 14.4 7.2 —
7.5 18 9 7.4
8 19.2 9.6 —
9 — 10.8 —
10 24 12 9.8
12.5 30 15 12
15 36 18 15
17.5 42 21 17
20 48 24 20
22.5 54 27 22
25 60 30 25
27.5 — 33 27
30 72 36 29
32.5 78 39 32
35 84 42 34
37.5 90 45 37
40 96 48 39
42.5 102 51 42
45 108 54 44
50 120 60 49
55 — 66 54
60 144 72 59
65 — 78 64
70 168 84 69
75 180 90 74
80 192 96 78
85 — 102 83
90 216 108 88
100 240 120 98
120 288 144 118
125 — 150 123
140 336 168 137
150 360 180 147
160 384 192 157
180 432 216 176
200 480 240 196
225 — 270 221
250 — 300 245
300 — 360 294
350 — 420 343
400 — 480 392
Operating features
During normal operation, cleared fuse indicator lamps will
not illuminate. When a fuse clears on an energized unit, the
associated lamp will glow.
Unipak detuned filters are equipped with a self-resetting reactor
over-temperature indicator lamp. Thermal overload indicating light
activates when reactor temperature reaches 180 °C.
Reactor cabinet thermal overload and cleared fuse indicator lamps
Maintenance
The following maintenance items require the capacitor to
be energized and should be performed only by trained and
qualified personnel.
mWARNING
ONLY QUALIFIED ELECTRICIANS SHOULD HANDLE THE INSTALLATION AND
MAINTENANCE OF THIS CAPACITOR BANK; OTHERWISE, ELECTRIC SHOCK,
ARC FLASH, OR FIRE MAY OCCUR.
Retorque
Before handling the capacitor, disconnect all and any electrical
power supply from the circuit into which the capacitor bank is being
installed. Extreme caution must be taken to prevent accidental
contact with the terminals of the capacitor during installation,
operation, and service of this equipment. Accidental contact with
the capacitor, if not properly discharged, can result in personal injury
or death.
After five minutes of removing all power from the capacitor bank,
the capacitors inside the enclosure can be accessed by shorting all
terminals and then grounding the leads using an insulated shorting
jumper wire. Using a DC voltmeter, confirm that the capacitor has
entirely discharged as evidenced by zero voltage present between
the capacitor terminals prior to performing installation, operation,
or service of the capacitor bank. Accidental contact with energized
parts may cause personal injury or death.
Generally, power factor capacitor banks are considered to be
maintenance free. Over time, the capacitance value may decrease,
especially when self-healing occurs.

9
Instruction Booklet IB157001EN
Effective May 2015
Fixed capacitor banks (Unipump, Unipak, and Unipak
detuned lter) low voltage (600 V and below), NEMA 1
NEMA 3R (outdoor) enclosed versions
EATON www.eaton.com
The following inspections should be made during regular
maintenance intervals, or semi-annually.
• Periodically inspect the individual capacitor cells for bulging. If the
top (terminal area) is bulging, then it is likely that the pressure
switch has operated and the capacitor is no longer operational.
For proper performance, any failed capacitor cells should only
be replaced with direct factory replacements
• To verify the general condition of the capacitors, take a current
measurement in each capacitor phase. A discrepancy in current
between phases may indicate a failed capacitor cell. For proper
performance, any failed capacitor cells should only be replaced
with direct factory replacements
• Remove any dust and dirt that may have accumulated within your
capacitor cabinet. Check to ensure that the enclosure is properly
and adequately ventilated
• Routinely check to see that wire terminations are securely
fastened to capacitor terminals. If required, torque the cage clamp
style capacitor cell terminals to 22 in-lb using a calibrated torque
wrench or screwdriver and the recommended Phillips head Ph1
or Pozidriv Pz2 bit
• Routinely check torque on all terminations. Verify they are in
compliance with the torque chart (see Table 3)
Measure the voltage between each of the phases and verify it is
within ±10% of the voltage rating stated on the nameplate. Measure
the current in each capacitor phase and verify that it is within ±10%
of current rating stated on the nameplate.
Troubleshooting
Symptom Problem Solution
Cleared fuse indicator lamp lit Cleared fuse Disconnect power supply to the capacitor bank. Wait at least five minutes before opening the capacitor bank cover.
Locate the blown fuse and its associated capacitor cell(s). Inspect the cells for bulging or other indication of failure.
Replace the cleared fuse and failed capacitors. Contact factory for additional troubleshooting assistance.
Capacitor phase currents are
unbalanced (greater than 20%)
Cleared fuses or failed
capacitor cells
Identify cleared fuse and/or failed capacitor cells (bulged top) and replace using exact replacement.
Contact factory for additional troubleshooting assistance.
Capacitor bulged or not reading
capacitance / draws zero current
Customer application Check the application for overvoltage, ambient temperature, harmonics, and/or transients. Contact factory for
additional troubleshooting assistance.
Cleared fuses Customer application Check the application. Most common causes for fuses clearing is back-to-back transient switching, very high
ambient temperatures, excessive harmonic or overcurrent, and/or voltage transients. Contact factory for additional
troubleshooting assistance.
OL light is lit (Unipak filter) Customer application Check the application. This indication lights up when the reactor temperature switch is activated indicating high hot
spot temperature. Most common causes are very high ambient temperatures, excessive harmonic or overcurrent, and
resonance. Contact factory for additional troubleshooting assistance.
All troubleshooting is to be performed by electrically qualified
personnel. For advanced troubleshooting, refer to Eaton
IB158006EN.

10
Instruction Booklet IB157001EN
Effective May 2015
Fixed capacitor banks (Unipump, Unipak, and Unipak
detuned lter) low voltage (600 V and below), NEMA 1
NEMA 3R (outdoor) enclosed versions
EATON www.eaton.com
General specications
Standards and certifications
• ULT810 and CSATC.22.2 No. 190 Listed (Unipump and Unipak)
• UL 508A and CSA C22.2 No. 190 (Unipak detuned filter)
Features and specifications
• Outer capacitor enclosure: Heavy, No. 14 gauge steel finished
with durable baked powder coat finish. Wall-mounting flanges
and floor-mounting feet. Elimination of knockouts permits indoor/
outdoor use. Manufactured to NEMAT1 and 3R requirements
• Elevated floor-mounting feet allow access for easy maintenance
• Capacitor enclosure cover: “L” shaped gasketed cover with
multiple fasteners provides front opening for ease of installation
and service
• Unipak operating temperature: –40 °F to +115 °F
(–40 °C to +46 °C)
• Unipak storage temperature: –40 °F to +131 °F
(–40 °C to +55 °C)
• Power and ground terminal lugs: Furnished inside enclosure
• Pressure-sensitive interrupter: All units have built-in UL
recognized pressure-sensitive interrupter, and thermally or
mechanically activated disconnecting link removes capacitor
from the supply before dangerous pressure buildup or excessive
fault current occurs. Bulged capacitor cell top provides easy
visual indication of interrupter operation
• Standard fusing:
• Size Code A1: Three midget-type fuses with 100,000 A
interrupting capacity
• Size Code A2 and larger: Slotted-blade type fuses with
200,000 A interrupting capacity; fuses mounted on stand-off
bushings; solderless connectors for easy hookup of incoming
line conductors
• Fuse indicating lights: Red, neon cleared-fuse indicating lights
are protected by transparent weatherproof guard
• Options:
• Non-fused units available, selected sizes
• Heavy-duty capacitor cells, selected sizes
Reactors (Unipak detuned filter only)
• Detuning: Standard reactor designs are detuned to the 4.2nd
harmonic and recommended to protect capacitors against
harmonic resonance. Detuning to other harmonics is available
as an option. The harmonic spectrum should be evaluated for
applications involving reactors tuned above the 4.2nd harmonic
to ensure optimal equipment life, specifically when used in
conjunction with six-pulse motor drives
• Construction: 100% copper windings for cool operating
temperatures; designed operating temperature rise less than
80 ºC. Open frame construction with 220 ºC insulation system
• Thermal sensors: One per phase, self-resetting thermal switches
provide reactor overtemperature protection and indication
• Reactor indicating light: Thermal overload indicating light
activates when reactor temperature reaches 180 ºC
• Fuses: Standard fusing with cleared fuse indication
• Enclosure: Manufactured to NEMA 1 requirements
Warranty
Standard warranty is 1 year, parts only, against manufacturing
defects for entire unit. For units with standard-duty capacitor cells,
the capacitor cells provided with the unit have a standard 2-year
warranty against manufacturing defects, parts only. For units with
heavy-duty capacitor cells, the capacitor cells have a standard 5-year
warranty against manufacturing defects, parts only.

11
Instruction Booklet IB157001EN
Effective May 2015
Fixed capacitor banks (Unipump, Unipak, and Unipak
detuned lter) low voltage (600 V and below), NEMA 1
NEMA 3R (outdoor) enclosed versions
EATON www.eaton.com

Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
United States
Eaton.com
© 2015 Eaton
All Rights Reserved
Printed in USA
Publication No. IB157001EN / Z16136
May 2015
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
Fixed capacitor banks (Unipump, Unipak, and Unipak
detuned lter) low voltage (600 V and below), NEMA 1
NEMA 3R (outdoor) enclosed versions
Instruction Booklet IB157001EN
Effective May 2015
For technical support and application engineering
assistance, please contact Eaton’s TRC at
1-800-809-2772 option 4, option 2.