User Manual

Description
2.4 Electronic trip unit ETU600
3WA Air Circuit Breakers
Equipment Manual, 05/2021, 92310000002-03
75
Test position
Before performing the insulation test of the power distribution equipment, the voltage tap
module must be pulled out into the test position. This provides galvanic isolation between
the electronics and the primary circuit.
Note
Performing an insulation test without pulling the voltage tap module into the test position
may result in a failed insulation test. This will not affect the circuit breaker functionality.