The TM-D trip gives you thermal overload (L) and magnetic short-circuit (I) protection in one unit, no electronic auxiliaries to fail.
At 220/240 V AC it's rated 100 kA Icu, and it still holds 35 kA Icu at 525 V AC. That's enough SCCR headroom to place this breaker at the main or sub-main distribution point without worrying about fault currents melting busbars downstream. The breaker is utilisation category A — it's not intended for frequent switching of motor starts, but for feeder and distribution protection where you need reliable fault interruption.
Mounts flat on a backplate — no DIN-rail adapter on this frame; it bolts directly into the panel. Neutral is on the left. IP40 enclosure and IK07 impact rating mean it's fine inside a standard IP54 or better enclosure — not for washdown zones.
It is certified suitable for isolation per that standard, meaning you can safely use it as a disconnecting means with visible gap when open. Overvoltage category III suits fixed-installation distribution boards. No earth-leakage protection built in — if you need that, you add a separate Vigi module or an external RCD.
Durability
Mechanical durability is 40,000 cycles. Electrical durability depends on load: 40,000 cycles at 440 V at half rated current, 20,000 at full rated current. That's typical for a distribution MCCB — it's not a contactor for daily switching, but it handles infrequent on/off for maintenance or emergency stops without wearing out prematurely.