The ISM series magnetic actuator vacuum circuit breaker is the result of extensive R&D efforts to provide outstanding performance for compact switchgear designs, retrofit solutions, and special applications. The ISM series VCB install base exceeds 500,000 units worldwide, continuing to solve the most ambitious customer problems.
The switching module’s robust design guarantees up to 50,000 rated current and 100 full rated short circuit CO operations with no maintenance required.
The whole trip and close circuit supervision come in a single package with any VCB. In the event of a malfunction, it will be indicated locally with LED and remotely via relay contacts.
With a weight starting from 33 kg, the circuit breakers are the lightest in their class which significantly simplifies the installation process.
Adjustment and mounting flexibility for the optimization of switchgear design, which allows to define how to make primary and secondary connections, saving even more space
Opening and closing times as low as 12 ms and 24 ms respectively, enabling the implementation of fast transfer switching, arc flash mitigation or fault current limitation.
The perfect match for applications like transformers or generators with neutral earthing, server rooms and point on wave switching.