The adjustable thermal-magnetic trip unit covers a 600 A to 4800 A range, so you set the instantaneous pickup to match your downstream cable and load inrush, not the other way around. Breaking capacity is where this breaker earns its keep in a distribution board. At 240 V it interrupts 330 kA; at 415 V and 440 V it holds 242 kA; at 500 V still 187 kA. Only at 690 V does it drop to 9 kA — that's the limit of the internal arc chamber. For most 400 V class switchgear these numbers give generous SCCR headroom for selective coordination upstream of branch feeders.
Built-in accessories and wiring
The basic switch core is the 3VA2440-7HL32-0AA0 — the accessory pack adds the remote-trip and status-reporting hardware without needing a separate kit. Maximum power loss is 63.5 W at full rated current. That's moderate for a 400 A frame — plan for ventilation if the breaker is enclosed in a small glanded box, but in a standard switchboard it dissipates fine through the mounting plate.