Effective 9/21/99
Page 8
I.L. 70C1080H01
WARNING
DO NOT ATTEMPT TO INSTALL, TEST, OR PERFORM
MAINTENANCE ON EQUIPMENT WHILE IT IS ENER-
GIZED. DEATH OR SEVERE PERSONAL INJURY CAN
RESULT FROM CONTACT WITH ENERGIZED EQUIP-
MENT.
DE-ENERGIZE THE CIRCUIT AND DISCONNECT THE
CIRCUIT BREAKER BEFORE PERFORMING MAINTE-
NANCE OR TESTS.
CAUTION
TESTING A CIRCUIT BREAKER WHILE IT IS IN-
SERVICE AND CARRYING LOAD CURRENT IS
NOT
RECOMMENDED.
TESTING OF A CIRCUIT BREAKER THAT RESULTS IN
THE TRIPPING OF THE CIRCUIT BREAKER SHOULD
BE DONE ONLY WITH THE CIRCUIT BREAKER IN
THE TEST OR DISCONNECTED CELL POSITIONS OR
WHILE THE CIRCUIT BREAKER IS ON A TEST
BENCH.
CAUTION
ANY TRIPPING OPERATION WILL CAUSE DISRUP-
TION OF SERVICE AND POSSIBLE PERSONAL
INJURY, RESULTING IN THE UNNECESSARY
SWITCHING OF CONNECTED EQUIPMENT.
10.2 Code Requirements
The NEC, under Article 230-95-C, requires that any
ground fault protection system be performance tested
when first installed. Conduct tests in accordance with the
approved instructions provided with the equipment. Make
a written record of this test and make the results available
to the authority having inspection jurisdiction.
10.3 Standard Requirements
As a follow-up to the basic performance requirements
stipulated by the NEC, UL Standard No. 1053 requires
that certain minimum instructions must accompany each
ground fault protection system. These statements (Sec-
tion 5.4.3), detailed testing information, plus a copy of the
record forms can be found in the Instructional Leaflet
which came with your breaker. (I.L. 70C1037)
If the Digitrip does NOT have a ground element and the
module was installed just for the powering of the LED
display, then perform an overload test at 200% to verify
tripping. This would complete the verification sequence. If
a ground element IS involved, continue with the following
tests.
10.4.2 Secondary Injection Test
An AC current of 1 Amp input can be injected onto the
breaker secondary contacts B-4 and B-5. This will trigger
the Ground Alarm indicator to function and close contacts
A-10 and A-11.
10.4.3 Primary Injection Test
A primary current higher than the Ground Current Pickup
setting, when applied to a pole of the circuit breaker, will
trigger the Ground Alarm indicator to function.
10.4.4 General Test Instructions For Secondary and Primary
Injection Methods
The interconnected system must be evaluated only by
qualified personnel and in accordance with the equipment
assembler’s detailed instructions.
To avoid improper operations following apparently correct
simulated test operations, the polarity of the neutral
sensor connections (if used) must agree with the equip-
ment assembler’s detailed instructions. Where a question
exists, consult the specifying engineer and/or equipment
assembler.
10.4 Test Methods - (Refer to Fig. 1.2)
10.4.1 Power Up Check
Upon energizing the trip unit with the correct auxiliary
power voltage on secondary contacts A-14 and A-15,
confirm that the status LED and LCD display are function-
ing.
