The Siemens SENTRON 3VA2463-6JQ32-0AD0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, with a full-scale current of 630 A and a minimum setting of 945 A. Its interrupting capacity reaches 242 kA at 240 V and 187 kA at 415 V, so it handles high-fault scenarios typical of large distribution or industrial feeder circuits without cascading upstream.
Derating and thermal management
The 630 A rating holds at 40 °C ambient; above that, derate linearly to 450 A at 70 °C. Maximum power loss is 162 W, so panel ventilation or spacing from heat-sensitive components matters when the breaker is loaded near its rating in a sealed enclosure.
The breaker measures 248 mm high, 138 mm wide, and 110 mm deep. Those dimensions match the standard SENTRON 3VA2 frame footprint, so a panel cutout or mounting pattern designed for the same frame accepts this unit without rework.
Auxiliary and communication options
This variant ships with three HQ auxiliary switches and a communication function, but no undervoltage release or voltage trigger. The basic switch supplied is order code 3VA2463-6JQ32-0AA0.