Figure 8-10 Loosening the buckle
Step 6 Remove the auxiliary contact and assemble it on the new circuit breaker.
Figure 8-11 Removing the auxiliary contact
Step 7 Install the new circuit breaker and auxiliary contact, and connect cables.
Step 8 Reinstall the protective cover, communications cable, and DC power cable for the
general input unit.
Step 9 Turn on the SPD circuit breaker, upstream power distribution switch, and input
switch of the general input unit.
Step 10 Check that the power supply and distribution of the system are normal.
----End
8.5 Replacing the Auxiliary Contact of an SPD Circuit
Breaker
Prerequisites
●
Tools: PDF door key, step ladder, Phillips screwdriver, flat-head screwdriver,
multimeter
●
Material: a new auxiliary contact of the same model
●
Before the replacement, ensure that the load services are not affected or
obtain written consent from the customer.
Procedure
Step 1 Turn off the input switch, SPD circuit breaker, and upstream power distribution
switch of the general input unit, and make a warning sign.
Step 2 Remove the communications cable and the DC power cable and mark the
installation positions.
New Main Way 2.0
User Manual
8 Parts Replacement
Issue 05 (2020-10-15)
Copyright © Huawei Technologies Co., Ltd.
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