Siemens SINOVA - Testing of Settings and Inspection of the Electronic Trip Unit

Inspection & Maintenance
4.4 Performing inspection
3WJ Air Circuit breakers
Operating Instructions, 12/2022, L1V30828903001-01
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4.4.8 Testing of settings and inspection of the electronic trip unit
Removal
NOTICE
Retrofitting for the electronic trip unit is only permissible by Siemens customer service
specialists.
1. Unscrew the electronic trip unit.
2. Remove the electronic trip unit from the breaker.
3. Unplug all plugs from the elctronic trip unit.
Note
Make sure that you do not damage the cable harness.