Replacing A Circuit Breaker - Huawei ETP48400-C9A2 User Manual

ETP48400-C9A2 Embedded Power
User Manual
Figure 7-7 Replacing an AC SPD module
Step 4 Disconnect the ground cable of the ESD wrist strap, and remove the ESD wrist strap and ESD
gloves.
----End
Follow-up Procedure
Check that the alarm for the AC SPD is cleared.

7.4.5 Replacing a Circuit Breaker

Prerequisites
Before replacing an AC circuit breaker, switch off the upstream input circuit breaker.
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Procedure
Step 1 Unscrew and remove the cover of the circuit breaker.
Step 2 Switch off the circuit breaker.
Step 3 Record the positions where the cables and signal cable terminals connect to the circuit
breaker.
Step 4 Loosen the screw that secures the upper port of the circuit breaker using a Phillips screwdriver,
and remove the power cable and signal cable terminals. Wrap the cable and terminals using
insulation tape.
Issue 05 (2020-04-07)
The cabinet door key, insulation tape, and required tools are available.
The new circuit breaker is intact and has the same specifications as the circuit breaker to
be replaced.
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