ABB | SACE Emax 2
Glossary | 3 | © 2019 ABB | 1SDH001000R0002 - ECN000109166 - Rev. D
Glossary
Term Description
SACE Emax 2 New series of ABB SACE air circuit-breakers
CB Circuit-breaker
Trip unit
Electronic unit connected to the CB, which provides measuring, monitoring and protection functions for the
CB if faulty operating conditions occur. In the event of an alarm, it commands a TRIP
Ekip Dip Trip unit SACE Emax 2 CBs, equipped with dip-switch type interface
Trip coil CB opening actuator controlled directly by Trip unit
TRIP
Concluding action of protection timing or a test command which, except in special configurations
applicable to the trip unit, coincides with activation of the trip coil, which instantly opens the bars of each
pole and interrupts the circulating current
Vaux Auxiliary power supply
4P / 3P / 3P + N CB configuration: four-pole (4P), three-pole (3P) and three-pole with external neutral (3P + N)
If Fault current measured by Trip unit, useful for calculating the trip time t
t
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