Siemens SENTRON 3VA2163-5KP32-0AB0 — 63 A MCCB with Communication
The Siemens SENTRON 3VA2163-5KP32-0AB0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current, designed for line protection in industrial power distribution panels. It carries a breaking capacity of 187 kA at 240 VAC, 121 kA at 415/440 VAC, 75.6 kA at 500 VAC, and 3.7 kA at 690 VAC — the 240 V figure is the headline for high-fault applications like transformer secondaries or large motor control centers. Rated insulation voltage is 800 V, and the breaker maintains its full 63 A rating across the ambient temperature range from 40 °C to 70 °C. The unit includes a communication function and is supplied with a basic switch variant 3VA21635KP320AA0 plus two HP auxiliary switches.
Dimensions & Panel Fit
Physical footprint: 105 mm wide, 181 mm high, 86 mm deep (4.13 x 7.13 x 3.39 inches). These dimensions are standard for a 3-pole SENTRON 3VA2 frame MCCB; verify cutout and mounting hole pattern against your existing panel layout. The breaker does not include an undervoltage release or ground-fault monitoring as standard.