The TM-D provides L protection (thermal overload) and I protection (magnetic short-circuit) in one block — no separate trip unit to swap. The magnetic pickup for short-circuit is fixed on the TM-D, so coordination studies need that fixed threshold. The C10H6TM050 carries the H capacity code: 70 kA Icu at 380/415 V AC, 65 kA at 440 V, 50 kA at 500 V, and 35 kA at 525 V — all per IEC 60947-2. At 480 V AC it still delivers 65 kA Icu under UL 60947-4-1. For a 415 V distribution board with a transformer upstream that can push 50 kA of prospective fault current, this breaker has headroom. That is standard for three-phase distribution where the neutral is sized for the phase conductors and ground-fault protection is handled separately. No earth-leakage protection is built in.
The 161 mm height, 140 mm width, and 86 mm depth fit the standard ComPacT NSX cutout — no need to re-drill the panel if you are swapping an older NSX breaker. The toggle control is manual; no motor operator or rotary handle included.
The IEC 60947-2 and UL 60947-4-1 certifications mean it is accepted in both European and North American installations, which simplifies cross-border BOMs.
Durability and isolation capability
Mechanical durability is 50,000 cycles — the handle mechanism is rated for that many open-close operations before wear affects alignment. Electrical durability depends on the load: 50,000 cycles at 440 V at half rated current (In/2), 30,000 cycles at full In, and 10,000 cycles at 690 V at full In. That is typical for a distribution breaker that sees occasional switching, not daily motor starting.