What this MCCB delivers
The SENTRON 3VA2463-6JQ32-0DC0 is a 3-pole molded case circuit breaker (MCCB) rated 630 A at 40 °C, designed for line protection in industrial distribution panels. Its interrupting capacity hits 242 kA at 240 V and 187 kA at 415 V — figures that cover most utility-fault scenarios without cascading upstream. The 630 A full-scale rating means it protects a main feeder or large motor branch; the thermal derating curve drops to 450 A at 70 °C, so a hot panel costs you 180 A of headroom.
Breaking capacity across voltage levels
This MCCB delivers 242 kA at 240 V, 187 kA at both 415 V and 440 V, 121 kA at 500 V, and 9 kA at 690 V. The steep drop at 690 V tells you this breaker is optimized for 400–480 V class systems — common in North American and European industrial plants. At 690 V the 9 kA rating still clears a moderate fault, but it is not the part for high-fault 690 V switchgear.
Thermal performance and continuous current
Rated continuous current is 630 A at 40 °C ambient, derating stepwise: 600 A at 45 °C, 570 A at 50 °C, 540 A at 55 °C, 510 A at 60 °C, 480 A at 65 °C, and 450 A at 70 °C. The 164.5 W maximum power loss means the breaker dissipates heat into the enclosure — factor that into panel ventilation if you are running near full load at elevated ambients.
Built-in protection and auxiliary functions
The breaker includes an undervoltage release (UVR) for coordinated trip on loss of control voltage — standard for safety circuits that need to drop a feeder when the control supply fails. Two HQ auxiliary switches provide status feedback to a PLC or annunciator. The communication function allows integration into a monitoring network, though the protocol is not specified in this listing. The basic switch variant is 3VA2463-6JQ32-0AA0, which omits the UVR and aux switches.
Mechanical fit and panel integration
Dimensions are 248 mm high, 138 mm wide, and 110 mm deep. The 138 mm width is a standard 3-pole MCCB footprint for SENTRON 3VA frames — it mounts on a DIN rail or panel-mount baseplate. The 110 mm depth leaves clearance for rear-connected busbars or cable lugs in a typical 400 mm deep enclosure.