The SENTRON 3VA2463-5KP32-0HA0 is a 3-pole molded case circuit breaker rated for 630 A continuous current, designed for line protection in industrial power distribution. It carries a shunt trip release (STL) for remote tripping and includes voltage-trigger and communication functions.
Key ratings and what they mean for fit
Continuous current is 630 A at 40 °C, but the breaker must be derated as ambient rises: 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. If your panel runs at 50 °C, the usable current drops to 570 A — size accordingly. Breaking capacity varies sharply with voltage: 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. At 690 V, the 9 kA rating means this breaker is not suited for high-fault locations on 690 V systems — verify your available fault current against that figure. The adjustable trip range spans from 945 A (minimum) to 5,670 A (maximum), giving flexibility to coordinate with downstream devices without swapping the breaker.
Physical fit and panel integration
Dimensions are 248 mm high, 138 mm wide, and 110 mm deep. That 110 mm depth is the dimension that matters for enclosure depth — a standard 200 mm deep panel leaves enough room for wiring and bending radius behind the breaker. Maximum power dissipation is 162 W — factor that into your thermal budget if the breaker is enclosed in a small cabinet with other heat sources.