Its 36 kA Icu at 415 V AC means it can safely interrupt a 36 kA fault on a 415 V distribution board without welding contacts or cascading upstream — that's the figure that decides whether this breaker holds coordination on a 400 V panel. The TM-D trip gives you L (thermal overload) and I (magnetic short-circuit) protection in one block, no aux power needed.
Neutral protection and isolation
4-pole with neutral on the left, neutral protection set to 1 x Ir (4D) — meaning the neutral pole is protected at the same current as the phases, suitable for 4-wire systems where the neutral carries load.
Electrical endurance and duty
Rated for 50,000 mechanical cycles and 30,000 electrical cycles at 440 V In. That's enough for daily switching in a machine control panel; if you're cycling it multiple times per shift on a welder or press, keep an eye on the 10,000-cycle figure at 690 V In. Utilisation category A means it's designed for distribution, not direct motor starting.
