Page 5 - Sace Emax 2 Manual for design engineers

ABB | SACE Emax 2
Glossary

Term Description
SACE Emax 2 New series of ABB SACE air circuit-breakers
CB Circuit-breaker
Trip unit / Protection Electronic unit connected to the CB (Mainboard), which provides measuring, monitoring and protection functions
release for the CB if faulty operating conditions occur. In the event of an alarm, it commands a TRIP
Mainboard Electronic board of the CB to which the Trip Unit and all the main accessories and electronic actuators connect
Ekip Dip Trip unit SACE Emax 2 CBs, equipped with dip-switch type interface
Ekip Touch Trip unit for SACE Emax 2 CBs, equipped with touchscreen display and available in four different versions
Trip unit for SACE Emax 2 CBs, equipped with LCD display; alternative to Ekip Touch for applications in particular
Ekip LCD
environmental conditions
Trip coil CB opening actuator controlled directly by Trip unit
Concluding action of protection timing or a test command which, except in special configurations applicable to the
TRIP 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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