SENTRON 3VA2163-7MS36-0HA0 — MCCB for motor and feeder protection
The Siemens SENTRON 3VA2163-7MS36-0HA0 is a 3-pole molded case circuit breaker (MCCB) rated 63 A continuous across the full 40 °C to 70 °C ambient range — no derating needed in a hot panel. It carries a 330 kA interrupting capacity at 240 V, 242 kA at 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V. The breaker is designed for starter protection (motor branch circuit), with a shunt trip release (STL) for remote emergency-off or undervoltage control.
What the interrupting ratings mean for your panel
The 330 kA at 240 V is the highest symmetrical fault current this breaker can safely clear at that voltage — critical for high-fault locations like service entrances or near large transformers. At 690 V the rating drops to 3.7 kA, so verify the available fault current at your system voltage before specifying. The 63 A frame stays flat-rated from 40 °C to 70 °C, which simplifies panel thermal calculations: no need to upsize for a 65 °C ambient.
Panel integration and dimensions
The breaker occupies 105 mm width, 181 mm height, and 86 mm depth — fits standard MCCB panel cutouts. The basic switch variant is 3VA2163-7MS36-0AA0; this order code adds a shunt trip release (STL) for remote trip control. No auxiliary switch or undervoltage release is included, so plan separate wiring for those functions if needed.