Breaking capacity is 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 9 kA at 690 V — the 415 V figure covers the common European low-voltage distribution level, so this breaker handles high-fault-current scenarios on a 400 V bus without cascading upstream. The magnetic trip is adjustable between 945 A and 5 670 A (1.5× to 9× In), which lets the commissioning engineer set the instantaneous pickup to coordinate with downstream branch breakers or motor-starting inrush.
Dimensions are 248 mm high × 138 mm wide × 110 mm deep — a standard SENTRON 3VA2 frame that fits the existing cutout and bus-bar spacing in most 630 A switchboards. The 110 mm depth leaves clearance behind the gland plate for cable bending radius.
The basic switch variant 3VA2463-5JQ32-0AA0 is the same frame without the communication module — a drop-in alternative if the BOM does not require the comms function, though the -0CC0 carries the UVR and auxiliary switches as standard.