The Siemens SENTRON 3VA2163-7MN36-0AE0 is a 3-pole molded case circuit breaker (MCCB) rated for a continuous current of 63 A across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Designed for motor protection, it includes phase failure detection and carries a breaking capacity that starts at 330 kA at 240 V and steps down to 3.7 kA at 690 V. The unit ships with four HQ auxiliary switches as standard and sits on a DIN-rail mount in a panel enclosure, occupying 105 mm width and 86 mm depth.
Breaking capacity by voltage level
The interrupting rating varies with system voltage: 330 kA at 240 V, 242 kA at both 415 V and 440 V, 187 kA at 500 V, and 3.7 kA at 690 V. That 3.7 kA figure at 690 V is the practical limit — verify the available fault current at the point of installation against this curve before committing the BOM line.
Integration and mounting
Panel integration is straightforward: the 105 mm width and 86 mm depth fit standard DIN-rail MCCB footprints. The 181 mm height leaves clearance for gland plates and busbar routing. Four HQ auxiliary switches are factory-fitted — no separate ordering needed for basic status feedback. Power loss is 4 W maximum, negligible for enclosure thermal budgeting.
Environmental and operating range
Operating temperature spans -25 °C to 70 °C; storage range is -40 °C to 80 °C. The 63 A rating holds across the entire operating band — no derating curve to chase. Phase failure detection is built in, so the breaker will trip on loss of one phase, protecting the motor from single-phasing.