What this MCCB carries — the ratings that decide fit
The Siemens SENTRON 3VA2163-5KP32-0KL0 is a 3-pole molded case circuit breaker rated for 63 A continuous current, sized for line-protection duty in distribution panels and motor control centers. Its interrupting capacity reaches 187 kA at 240 V, 121 kA at 415 V and 440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — so the same breaker handles high-fault commercial services and lower-fault industrial feeders without a frame-size jump. The 63 A rating holds flat across the full ambient range from 40 °C to 70 °C — no derating curve to calculate for a warm panel. That simplifies BOM planning for a line that sees seasonal temperature swings or sits near process heat.
Panel fit and integration
The breaker measures 105 mm wide, 181 mm tall, and 86 mm deep — a standard MCCB footprint that drops into most SENTRON 3VA panel cutouts and busbar risers. The 86 mm depth leaves clearance behind a 200 mm deep enclosure for wiring and auxiliary connections. It ships with a shunt trip (STL) release and a full auxiliary switch block: 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch. That covers remote trip signalling and status feedback without adding a separate accessory module.