The TM-D trip provides L (thermal overload) and I (magnetic short-circuit) protection in one block; no earth-leakage module is fitted on this variant. Breaking capacity is the headline number for a distribution breaker: 36 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2. At 220/240 V it jumps to 85 kA Icu; at 690 V it drops to 8 kA Icu. The utilisation category is A (not intended for frequent switching of motor loads — this is a distribution breaker, not a motor-circuit protector). The 4-pole version (4P) has the neutral on the left with 1 x Ir neutral protection setting. Front-front connection — both line and load terminations are on the front face, which simplifies busbar routing in a panel but means you need clearance in front for cable entry.
Mechanical durability is 40,000 cycles — that's the number of open-close operations the mechanism is rated for before wear-out. Electrical durability depends on the load: 40,000 cycles at 440 V at half rated current (In/2), 20,000 cycles at full 440 V In, and 7,500 cycles at 690 V In. For a distribution breaker that sees infrequent switching (maybe a few operations per day), these numbers are more than adequate. If your application cycles the breaker hourly, you'd want to check the electrical endurance curve against your actual load current.
Dimensions: 161 mm height, 140 mm width, 86 mm depth. Connection pitch is 35 mm. Operating altitude is 0–2000 m without derating. Relative humidity range is 0–95% non-condensing.
