What this MCCB does — and what the ratings actually mean
That TM240 designation means the thermal trip element is fixed at 32 A — no field-adjustable thermal dial — and the magnetic instantaneous pickup is set at 240 A (7.5x In). For a panel-builder or MRO planner, this is a line-protection breaker, not a motor-protection device; it's sized for cable and busbar protection in distribution panels where you want a fixed thermal curve and no nuisance tripping from inrush. The breaking capacity figures tell the real story for selectivity coordination. At 415 V it's still 75.6 kA, and at 690 V it drops to 11.9 kA. Thermal derating is published across the operating range: it holds full 32 A from 40 °C through 50 °C, then steps down to 30.72 A at 55 °C, 30.08 A at 60 °C, 29.44 A at 65 °C, and 28.8 A at 70 °C.
Built-in auxiliaries and release options
The trip indicator (mechanical flag) and voltage trigger are both present, so you get local visual confirmation of a trip event without needing to read the aux contacts. If your spec calls for any of those, you need a different 3VA suffix — this one is a straightforward line-protection breaker with remote trip capability only.
Dimensions: 130 mm height, 76.2 mm width (3-pole frame), 70 mm depth. The 15 000 latching endurance cycles (mechanical) is typical for a distribution MCCB — not a switching-duty contactor, but fine for the occasional manual disconnect or test operation.
