8
Instruction Booklet
IL70C1080H03
Effective May 2014
Instructions for Field Installing Ground Fault Alarm/Power
Supply Modules into Digitrip 520M Equipped Eaton
Magnum and Magnum DS Circuit Breakers
EATON www.eaton.com
Apply the same current as described above through any two phases
of the breaker. The breaker should not trip, and the alarm indicator,
if one is supplied, should not operate. Repeat the test using the
other two combinations of breaker phases (see Figure 11).
Figure 11. Connection Details for Conducting Single Phase
Current Tests with the Breaker Removed from the Cell.
CAUTION
RESTORE ALL TEMPORARY CONNECTIONS MADE FOR THE PURPOSE
OF CONDUCTING TESTS TO PROPER OPERATING CONDITIONS BEFORE
RETURNING THE BREAKER TO SERVICE.
10.4.5 Eaton Test Kit Check
The functions of your newly installed Ground Alarm / Power Supply
module can also be confirmed with an optional, test kit authorized
by Eaton. This device can provide secondary injection currents to
the ground protection element of the trip unit that simulates cur-
rents from the current transformers.
Follow the detailed instructions of the particular test kit to initiate
a ground trip and verify the alarm, contact closure and breaker trip
action.
The test port is located on the front left-hand corner of the Trip Unit.
To access the port, remove the plexiglass cover from the front of the
circuit breaker. Using a small screwdriver, gently pry up on the test
port cover to remove this item.
Model
Test Kit
Digitrip DT20 family
Test Kit (140D481G02R, 140D481G02RR,
140D481G03, or G04) with Test Kit Adapter
8779C02G04
CAUTION
BEFORE PLUGGING A TEST KIT INTO THE TEST PORT, PLACE THE LTM
JUMPER IN THE INACTIVE POSITION. AFTER TESTING, RETURN THE LTM
JUMPER TO ITS ORIGINAL POSITION.
CAUTION
PERFORMING TESTS WITHOUT THE EATON- APPROVED TEST KIT MAY
DAMAGE THE DIGITRIP UNIT
WARNING
OBSERVE ALL RECOMMENDATIONS, NOTES, CAUTIONS, AND WARNINGS
RELATING TO THE SAFETY OF PERSONNEL AND EQUIPMENT. OBSERVE
AND COMPLY WITH ALL GENERAL AND LOCAL HEALTH AND SAFETY
LAWS, CODES, AND PROCEDURES. .
11.0 Standards
The Eaton Digitrip Trip Units are listed by the Underwriters
Laboratories, Inc.
®
(UL), UL File E52096, for use in Magnum
Circuit Breakers. These same units are also listed by the Canadian
Standards Association (CSA) under file LR 43556.
All Digitrip units have also passed the IEC 947-2 test program which
includes radiated and conducted emission testing. As a result, all
units carry the CE mark.
