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2.5.4.5
Battery
The internal clock of the ETU600 electronic trip unit is powered by a lithium battery. The
charge status is shown in the status bar of the display.
The service life of the battery depends on the ambient conditions; it is at least five years.
The battery can be replaced on site. To do this, the operator panel of the circuit breaker
must be removed, see Chapter Preparatory and concluding installation steps for the
installation of internal accessories (Page 229). The battery compartment is then
accessible from the side without dismantling the ETU600.
The lithium battery can be ordered as a spare part, see Chapter Replacement battery for
ETU600 (Page 363).
3WA1 air circuit breaker
Equipment Manual, 02/2023, 92310000002-06
Battery full
Battery empty, replacement necessary
Description
2.5 Electronic trip unit ETU600
111
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Troubleshooting
