SENTRON 3VA2163-5HN32-0AJ0 — molded case circuit breaker for line protection
The Siemens 3VA2163-5HN32-0AJ0 is a SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling. Three poles, line-protection design, no undervoltage release, no communication module. Breaking 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. That 187 kA figure at 240 V is the headline: it handles high-fault-current scenarios common in industrial distribution panels where upstream transformer capacity is large. The 63 A rating holds flat from 40 °C through 70 °C — that means you don't have to oversize for elevated panel ambient. For a line-side feeder on a 60 A continuous load in a warm enclosure, this breaker fits without a temperature derate calculation.
Panel fit and auxiliary switch configuration
Dimensions: 105 mm wide, 181 mm high, 86 mm deep. That 86 mm depth is the body depth behind the panel — check your gland plate clearance if the enclosure is shallow. The breaker ships with 2 auxiliary switches plus 1 trip alarm switch (HP type) factory-installed. The supplied basic switch is order code 3VA21635HN320AA0. No ground-fault monitoring version is included. Mounts on a DIN rail or direct panel. The 105 mm width is standard for a 3-pole MCCB in this frame class — it occupies one 105 mm module position in the distribution board.