ABB | SACE Tmax XT
Glossary | 3 | © 2019 ABB | 1SDH002039A1002 - ECN000093027 - Rev. A
Glossary
Term Description
SACE Tmax XT5 New series of ABB SACE moulded-case 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 Touch Trip unit for SACE Tmax XT5 CB, equipped with touchscreen display and available in six different versions
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)
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