Replacing The Auxiliary Contact Of An Spd Circuit Breaker - Huawei New Main Way 2.0 User Manual

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New Main Way 2.0

User Manual

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

●

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.

Issue 05 (2020-10-15)

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.

8 Parts Replacement

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