The H breaking capacity code means it clears 70 kA Icu at 415 V AC (50/60 Hz) per EN/IEC 60947-2, and still holds 65 kA at 440 V and 50 kA at 500 V. That puts it squarely in the high-fault panel class: suitable for main or feeder protection in distribution boards where the available fault current runs above 50 kA.
The TM-D trip unit gives you fixed thermal (L) and magnetic (I) protection curves — no interchangeable rating plugs, no electronic adjustment. At 440 V the breaker still delivers 65 kA Icu, which covers most industrial 480Y/277 V panels. The 4-pole configuration with neutral left and 1 x Ir neutral protection setting means it switches all four poles and protects the neutral at the same level as the phase — common for 4-wire distribution where the neutral carries load. Mechanical durability is 40,000 cycles; electrical durability at rated current (440 V In) is 20,000 cycles. That's typical for a distribution-grade MCCB — not a motor-switching duty cycle, but fine for infrequent manual switching or backup isolation.
Front connections both top and bottom, with a 35 mm connection pitch.