CEP 6502GU User manual

CEP 6502GU/GTL, 6503GU/GTL
99577, 99577C
Temporary branch power distribution unit
with Ground Fault Protection for personnel
Installation and Operating Instructions
SPECIFICATION
These installation and operation instructions
apply to the following temporary power
branch distribution system components. Do
not discard these instructions, save for future
Reference.
PORATBLE POWER
DISTRIBUTION UNITS
These units are rated 20, 30, or 50 amps,
125/250 VAC, Single Phase. The max. ampacity
for these units is 40A @ 120V. The 20 amp, 120
volt outlets are individually protected by circuit
breakers and GFCI circuit modules.
Model
Number(s)
20 Amp
Receptacle
6502GU,6503GU
99577,99577C
U-Ground
6502GTL, 6503GTL
Twist Lock
INTRODUCTION
CEP temporary power distribution units equipped
with GFCI modules that will protect you from
electrocution hazards resulting from ground
faults. Ground faults are current leaks and can
result in electric shock. Currents of only 60/1000
of an ampere can be fatal. The GFCI protection
provided by CEP temporary power distribution
units significantly minimizes shock hazards. CEP
temporary power distribution units,
which are UL listed as Class A, Group I
interrupters, respond to fault currents as low as
3-6 milliamperes, and will shut of the current
within 1/40th of a second. The temporary power
distribution unit is designed to provide protection
against electrical shock hazards due to line-to-
ground faults. Although the GFCI module does
not eliminate the hazard of a shock, it does limit
the duration of the shock to a period considered
safe for normally healthy persons.
GFCI modules will provide protection against
ground faults only. They will not protect against
overloads or short circuits. There is no known
device that will guard against the electrical shock
hazard resulting from contact with both the “hot”
and neutral wires of the electrical circuit.
ELECTRICITY IS DANGEROUS.
EVEN WHEN SAFETY DEVICES ARE
PRESENT, HANDLE WITH CARE AND USE
REASONABLE CAUTION.
LET CAUTION PREVAIL
The CEP temporary power distribution unit is
designed to be used on a grounded electrical
supply system. It will not operate when supplied
from a power source which is not grounded.
Over-current protection of the proper rating,
according to the National Electric Code, Article
240, must be used on the supply circuit feeding
the temporary power distribution units.
.

TEST PROCUDURE
All Models
Connect the temporary power distribution unit to
an appropriate power source.
1. Verify all circuit breakers are in the “on”
position.
2. Push the test button on the individual GFCI
module. The unit should trip.
3. Push the reset button. The indicator light
should come on.
4. Repeat steps 2 & 3 for the remaining module.
TROUBLE SHOOTING
The GFCI Modules within the temporary power
distribution unit will trip whenever one or more of
the following abnormal conditions exist in the line
(supply) side circuit:
1. Either line (hot) conductor is transposed with
the neutral conductor.
2. Either line (hot) conductor is open
(disconnected)
3. There is an excessive voltage imbalance
between line 1 and line 2 circuits. This may be
the result of an open neutral conductor in the
supply circuit.
When the abnormal condition(s) in the supply
circuit is corrected, the unit may be reset for
normal use by completely removing and then
reapplying line power. It is recommended that
the GFCI test procedure be repeated at this time.
When a GFCI module trips, attempt to reset it by
pressing the reset switch, being careful to look
for possible danger to personnel. If the module
resets, the fault was momentary and has
cleared. If it trips again immediately, the fault is
still present and the GFCI module is performing
its safety function. To locate the fault, disconnect
all loads and again try pressing the reset switch.
The module should reset. Reconnect the loads
one at a time. The module will trip when the
faulted load is reconnected.
Inspect all tools, appliances and extension cords
in the faulted load circuit, repairing or replacing
any that are not in good condition. NOTE:
Tripping of a circuit breaker in these models can
only result from an overload or short circuit
condition in its individual load circuit. When the
fault in the load circuit is corrected or removed,
the circuit breaker can be reset for normal use by
switching handles to “OFF” position and then to
the “ON” position.
NUISANCE TRIPPING
All cables have some capacitive leakage. In a
120 volt system, there is a limited to the length of
cable which can be run before sufficient leakage
to ground will build up causing a GFCI to trip.
Individual 120 volt branch circuit load cords
should be limited to 250 feet in length.
APPLICATION NOTES
Enclosure is a NEMA Type 1, constructed for
indoor use to provide a degree of protection to
personnel against access to hazardous parts
and to provide a degree of protection of the
equipment inside the enclosure against ingress
of solid foreign objects (falling dirt).
HIGH VOLTAGE LIGHT
An illuminated high voltage light indicates the
input wiring is incorrect; check the power source.
CONTACT MONITOR LIGHT
The red monitor light is a welded contact
indicator. If the monitor light is on with the unit
tripped, it indicates the contact is welded, and
the unit should be replaced immediately -- there
is no GFCI protection. When the TEST button is
pressed, both the POWER light and MONITOR
light should go out, and come back on when the
RESET button is pressed.

MAINTENANCE & REPAIR
CAUTION: Electrical power supply MUST BE OFF AND DISCONNECTED before and during any
repair or maintenance. Repair and maintenance must be performed by a trained and competent
electrician.
WARNING: If any parts or components of this temporary distribution box appear to be missing,
broken or show signs of damage, DISCONTINUE USE IMMEDIATLEY! Do not modify these devices
in any way. Replace worn or damaged components. Failure to do so could cause serious personal
injury or death.
6502GU/GTL, 6503GU/GTL, 99577, 99577C REPLACEMENT PARTS
DESCRIPTION
PART #
20 AMP 125V U-GROUND DUPLEX RECEPTACLE
RECDUP
20 AMP 125V TWIST LOCK RECEPTACLE*
205R
20A 125V BOLT ON BREAKER
CB120NB
20A GFCI PANEL MOUNT MODULE
GF6095
20A 125/250V TWIST LOCK PLUG**
2014P
30A 125/250V TWIST LOCK PLUG***
3014P
50A 125/250V TWIST LOCK PLUG****
6365M
*6502GTL AND 6503GTL
** 6502GU/GTL
*** 6503GU/GTL
**** 99577 AND 99577C
RECDUP
GF6095
2014P
CB120NB