MCCBs – Electronic AC Circuit Breakers
Ex9M SU20L Electronic Moulded Case Circuit Breakers
- Version with parameter settings via DIP switches.
- Basic intelligent unit SU20L.
- Frame sizes M2–M6.
- Rated operational current up to 1600 A.
- Available in 3- and 4-pole versions.
- Ultimate short-circuit breaking capacity Icu = Ics up to 150 kA.
- Rated operational voltage 415 / 690 V AC.
- High tripping accuracy, reliable operation, and reduced sensitivity to ambient temperature.
Ex9M moulded case circuit breakers with SU20L intelligent electronic trip unit are primarily designed for power distribution applications. Tested according to IEC/EN 60947-2 standards, they ensure functionality and reliability across a wide range of applications, including isolation functions. The electronic controller with DIP switches enables quick and simple commissioning based on installation requirements. Electronic technology improves device stability in applications exposed to significant mechanical stress. These circuit breakers are available with breaking capacities from 36 kA up to a maximum of 150 kA. The rated impulse withstand voltage Uimp up to 12 kV allows their use in systems subject to high transient overvoltages, such as heavy industry. Utilization categories A and B.
Certifications
Ex9M SU20L Electronic Moulded Case Circuit Breakers
- Version with parameter settings via DIP switches.
- Basic intelligent unit SU20L.
- Frame sizes M2–M6.
- Rated operational current up to 1600 A.
- Available in 3- and 4-pole versions.
- Ultimate short-circuit breaking capacity Icu = Ics up to 150 kA.
- Rated operational voltage 415 / 690 V AC.
- High tripping accuracy, reliable operation, and reduced sensitivity to ambient temperature.
Ex9M moulded case circuit breakers with SU20L intelligent electronic trip unit are primarily designed for power distribution applications. Tested according to IEC/EN 60947-2 standards, they ensure functionality and reliability across a wide range of applications, including isolation functions. The electronic controller with DIP switches enables quick and simple commissioning based on installation requirements. Electronic technology improves device stability in applications exposed to significant mechanical stress. These circuit breakers are available with breaking capacities from 36 kA up to a maximum of 150 kA. The rated impulse withstand voltage Uimp up to 12 kV allows their use in systems subject to high transient overvoltages, such as heavy industry. Utilization categories A and B.
Click to Open
