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Installation Instructions IM581127000
Spec. No. 581127000 (Model 710NPBA) Issue AB, March 22, 2012
Chapter 2. Installing the System Page 23
This document is property of Emerson Network Power, Energy Systems, North America, Inc. and contains confidential and proprietary information owned by Emerson Network Power, Energy
Systems, North America, Inc. Any copying, use, or disclosure of it without the written permission of Emerson Network Power, Energy Systems, North America, Inc. is strictly prohibited.
Installing GJ/218 Circuit Breakers
Refer to the following procedure and install appropriately sized GJ/218 circuit breakers
into the proper mounting positions in the distribution cabinet.
Procedure
Note: Refer to Figure 2-14 as this procedure is performed.
1) Locate the appropriate circuit breaker mounting kit ordered with the circuit
breaker. The circuit breaker mounting kit contains installation hardware, an
alarm jumper, a shunt jumper (if applicable), a busbar (for 2- and 3-pole circuit
breakers), and a circuit breaker guard. Refer to SAG581127000 for part
numbers of the circuit breaker mounting kits.
2) Open the distribution cabinet’s front door by turning the latch in the
counterclockwise position.
3) Ensure that the circuit breaker is in the OFF position, and is of the correct rating
and type (electrical trip/mechanical trip or electrical trip only). Apply anti-
oxidizing compound to busbar mating surfaces on the distribution panel and the
circuit breaker. Orient the circuit breaker over its mounting location.
a) Attach the alarm jumper connectors to the back of the circuit breaker, then
plug the other end of the alarm jumper into its corresponding connector.
Wiring diagrams are provided in Figure 2-14 and at the end of this procedure.
b) Shunted Breakers Only: Attach the shunt jumper connectors to the back of
the circuit breaker, then route the jumper through the hole in the distribution
panel. Wiring diagrams are provided in Figure 2-14, Figure 2-15, and Figure
2-16.
Danger: The bolts being installed in the following step may be at system
potential. Use insulated tools.
4) Install the circuit breaker into its mounting position and secure with the provided
hardware. Torque to 60 in-lbs.
5) Install the circuit breaker guard and label (refer to Figure 2-14).
6) 2-Pole and 3-Pole Circuit Breakers Only: Install the mounting kit supplied
busbar as shown in Figure 2-14. Torque to 180 in-lbs.
7) Shunted Breakers Only: Route and connect shunt leads to the SM-DU+ and
Shunt Interface Assembly.
8) Record all circuit breaker sizes on the label provided on the shield.
9) Close the distribution cabinet's front door. Turn the latch clockwise to secure the
door.