Description
2.7 Electronic trip unit
3VA molded case circuit breakers with UL and IEC certification
82 Manual, 01/2019, L1V30435333-01
All molded case circuit breakers with electronic trip units (ETUs 3-series, 5-series and 8-
series) receive the signal for switchover of the protection parameters to DAS mode via the
MMB300 maintenance mode box applied with the appropriate control scheme. You can find
more information about the MMB300 maintenance mode box in chapter MMB300
maintenance mode box (Page 351).
Additionally, it is possible to activate DAS mode for the ETUs 5-series and 8-series directly
at the molded case circuit breakers via the keys on the LCD display.
1)
For LED displays, see chapter Operator controls (Page 84)
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