Noark 110439

The Motor Operated Electronic Moulded Case Circuit Breaker Ex9M6H SU20L 1600 3P MOD AC 397 is designed for power distribution applications, offering enhanced accuracy and reliability with its electronic release. Unlike thermomagnetic releases, this electronic release ensures precise tripping and allows for remote control of the device. Compliant with IEC / EN 60947-2 standards, it guarantees dependable performance across a wide range of applications, including isolation.

With breaking capacities ranging from 50 kA to 100 kA and a rated impulse withstand voltage of 8 kV, this circuit breaker is suitable for systems experiencing high-intensity transient overvoltage waves, such as those in heavy industry. The premounted closing release XF facilitates easy remote operation, enhancing convenience and control.

Key features include a rated permanent current of 1600 A, a rated voltage of 690 V, and a short-circuit breaking capacity of 100 kA at 400 V, 50 Hz. The overload release current setting ranges from 640 A to 1600 A, with an undelayed short-circuit release adjustment range of 3200 A to 19200 A. The device is constructed for fixed built-in installation and features a screw connection for the main circuit, a rocker lever control element, and an IP20 degree of protection.