The Siemens SENTRON 3VA2163-5HN32-0DA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 63 A across the full ambient temperature range from 40 °C to 70 °C — no derating needed up to the panel's thermal ceiling. Interrupting capacity hits 187 kA at 240 V and 121 kA at 415 V, so it handles high-fault utility feeds without cascading upstream. An integrated undervoltage release (UVR) trips the breaker when control voltage drops, standard for safety disconnects on motor branch circuits.
Sizing and interrupting capacity
Rated insulation voltage is 800 V, so it's safe for 480/600 V class panels. The 63 A frame holds steady at every ambient point from 40 °C to 70 °C — that's a flat thermal curve, meaning no guesswork on derating in a hot enclosure. Interrupting ratings: 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. At 690 V the rating drops sharply — verify the available fault current if feeding a 690 V drive bus.
Physical fit and panel integration
Dimensions: 105 mm wide, 181 mm high, 86 mm deep. That's a standard 3-pole MCCB footprint for a 63 A frame — fits most DIN-rail or panel-mount enclosures without re-drilling. The 86 mm depth leaves room behind a 200 mm deep gland plate for wiring and the UVR coil connections.