Interrupting capacity is the headline: 187 kA at 240 V, 121 kA at 415 V, and still 75.6 kA at 500 V. At 690 V it drops to 3.7 kA — that tells you the arc-extinction design is optimized for the 240–500 V band where most industrial MCCBs live. The built-in undervoltage release (UVR) and the auxiliary switch block (2 aux + 1 trip alarm HQ) are pre-configured from the factory — no field kit to add.
It bolts into a panel or mounts on a mounting plate; no DIN-rail clip on this frame class.
