The TM-D trip provides fixed thermal overload protection (L) and fixed magnetic short-circuit protection (I), with no adjustable dials, so the coordination study needs to confirm the magnetic pickup matches the inrush of the downstream load. For a 480 V panel (common in North America), the 65 kA Icu at 440 V is the nearest published figure — the 50 kA at 500 V gives headroom for 480 V applications. The SCCR of the entire panel is limited by the lowest-rated component, so this breaker supports a 65 kA SCCR at 480 V if the bus and upstream device match.
4-pole configuration and mounting
This is a 4-pole breaker with the neutral on the left. The neutral protection setting is 3D — no neutral protection, meaning the neutral pole is a switched pole only, not protected against overload. That is standard for distribution where the neutral is sized for the phase conductors and the load is balanced. Mounting is backplate, not DIN rail — the 140 mm width and 161 mm height fit the standard ComPacT NSX cutout.
Endurance and isolation capability
Mechanical durability is 50,000 cycles. Electrical durability varies with the load: 50,000 cycles at 440 V at half-rated current (In/2), 30,000 cycles at 440 V at full rated current (In), 20,000 cycles at 690 V at In/2, and 10,000 cycles at 690 V at In. For a distribution breaker that cycles a few times a year (maintenance switching), that is effectively a lifetime rating. The breaker is certified for isolation per EN/IEC 60947-2, meaning it provides a visible break and meets the touch-safe gap requirements — no need for a separate disconnect switch upstream.