The TM-D trip provides L (thermal) overload protection and I (magnetic) short-circuit protection; the magnetic pickup is fixed and not adjustable, so verify the inrush of your load doesn't exceed the magnetic threshold if you need coordination with downstream devices. Breaking capacity is the key selection parameter for fault duty. This unit delivers 40 kA Icu at 240 V AC, 25 kA Icu at 415 V AC, and 20 kA Icu at 440 V AC per IEC 60947-2. The utilisation category is A, meaning it is not intended for frequent switching of motor starts; it is a distribution breaker, not a motor-protective device.
The 4-pole breaker is 140 mm wide, 161 mm high, and 86 mm deep — plan for a 140 mm wide cutout in the enclosure gland plate. IP40 enclosure protection means it is suitable for indoor panels but not washdown environments.
Rated for 40,000 mechanical cycles and 20,000 electrical cycles at rated current (440 V In). The breaker is certified for isolation per EN/IEC 60947-2 — you can safely use it as a disconnecting means with a visible gap indication.