TP48200A-D17A5-2 Telecom Power
User Manual
4 Maintenance
Issue 04 (2019-12-20)
Copyright © Huawei Technologies Co., Ltd.
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Step 5
Loosen the screw that secures the lower port of the circuit breaker by using a Phillips
screwdriver, and loosen the buckle at the circuit breaker base by using an insulated flat-head
screwdriver.
Step 6
Remove the circuit breaker from the guide rail. Figure 4-4 shows the procedure for removing
the circuit breaker.
Figure 4-4
Removing the circuit breaker
Step 7
Switch off the new circuit breaker. Press the buckle at the circuit breaker base by using an
insulated flat-head screwdriver and install the new circuit breaker. Then loosen the buckle and
secure the circuit breaker to the guide rail.
Step 8
Tighten the screw that secures the lower port of the circuit breaker.
Step 9
Remove the insulation tape from the output power cable and signal cable terminals. Then
connect the power cable and signal cable terminals to the upper port of the circuit breaker and
tighten the screw.
Step 10
Switch on the circuit breaker. Figure 4-5 shows the procedure for installing the new circuit
breaker.
Figure 4-5
Installing the circuit breaker
Step 11
Place the cover before the circuit breaker, and tighten the screws.
