GE Industrial Solutions EntelliGuard G - Manual (Page 16)

EntelliGuard® G Circuit Breaker DEH-41304C
Section 3 – Lifting, Mounting and Installation 13 March 14
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6. Attach the lifting bar to remove the circuit breaker.
Fixed-Mounted Circuit Breaker Mounting
1. Ensure adequate clearance above the circuit breaker
to allow removal of the arc chutes and inspection of
the arcing contacts.
2. Mount the circuit breaker into position, using the
mounting location shown in Fig. 3.18 and four M8
bolts, on a suitable support structure using. Torque to
25 N m. A clearly-marked grounding point is provided
on either side of the circuit breaker.
Figure 3.18. Mounting Location
A
A Mounting Location
TRIP UNIT
General Information
All EntelliGuard G power circuit breakers are equipped with
a digital electronic trip unit available in four basics versions
E, S, N, and H.
Each trip unit has a screen that provides an ammeter and a
menu-driven adjustment of the breaker parameters across
a broad current range. The menu has four settings and one
enter key, allowing fast and accurate setting of the device
(Fig. 3.19).
Figure 3.19. Trip Unit
Trip Unit Installation
1. The trip unit is mounted on the PMU base. Press the
lever and align the trip unit as shown in Fig. 3.20.
Figure 3.20. Trip Unit Being Mounted on the PMU Base.
2. Insert the trip unit knob on the PMU base as shown in
Fig. 3.21.
Fig 3.21. Trip Unit Knob
3. Release the lever once the trip unit is inserted. This
action will lock the trip unit to the PMU base as shown in
Fig. 3.22.
Figure 3.22. Trip Unit Alignment
4. Install the front cover as shown in Fig. 3.23.
Fig 3.23. Front Cover Installation