Its interrupting capacity reaches 187 kA at 240 V, 121 kA at 415 V and 440 V, and 75.6 kA at 500 V — enough to handle high-fault utility feeds or transformer secondaries without cascading upstream. The breaker includes a shunt trip release (STL) and two HQ auxiliary switches, plus a communication function for integration into a monitoring system. The basic switch assembly is order code 3VA21165KP320AA0.
Panel fit — dimensions and mounting
The 3-pole block occupies a single mounting position on the DIN rail or direct panel mount.
