63 A MCCB with serious interrupting capacity
The Siemens SENTRON 3VA2163-5HN36-0CC0 is a 3-pole molded case circuit breaker rated for 63 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Its interrupting capacity hits 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 3.7 kA at 690 V — numbers that put it in the high-fault-current class for industrial distribution. This variant is configured for line protection and ships with an undervoltage release plus two auxiliary switches (HQ type) — ready for remote status monitoring and undervoltage trip coordination.
Panel fit and footprint
The 3VA2163 frame measures 105 mm wide, 181 mm tall, and 86 mm deep — a standard SENTRON 3VA footprint that drops into existing Siemens MCCB panel layouts without re-drilling the mounting plate. Power loss is rated at 6.5 W maximum, which keeps internal cabinet temperature rise manageable in dense panels; operating range spans -25 °C to 70 °C ambient.