Description
2.8 Electronic trip unit
3VA molded case circuit breakers with IEC certificate
102 Manual, 03/2019, A5E03603177010-03
When a TD500 test device is connected, you can use it to initiate a test. The following
screen appears when a TD500 is connected. The bar flashes at a frequency of 0.5 Hz.
The bar travels from left to right while testing is in progress. The test ends with a trip.
Load acceptance and load shedding - load management
3VA molded case circuit breakers equipped with an ETU 3-series or higher series provide
two current thresholds for the purpose of implementing a local load management function.
Load shedding is the upper threshold, and load acceptance the lower threshold.
Incoming alarm "load shedding"
Parameter load acceptance 100 A
Outgoing alarm "load shedding"
Incoming alarm "load acceptance"
Parameter load shedding 400 A
Outgoing alarm "load acceptance"
Current in one phase
Tripping is never initiated as a result of the current value crossing the upper or lower
thresholds.
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