What the ratings mean for fit
The 3VA1163-5EE36-0AC0 is a SENTRON molded case circuit breaker (MCCB) from the 3VA series, designed for line protection in distribution panels. Its 63 A rating at 40 °C is the continuous current it can carry without tripping under normal conditions — the key number for sizing feeder circuits. The TM220 thermal-magnetic release provides inverse-time overload protection (thermal) and instantaneous short-circuit protection (magnetic), set at a fixed 10x In for the magnetic trip. Breaking capacity is 187 kA at 240 V AC, dropping to 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500 V and 690 V. Those figures tell you the maximum fault current the breaker can safely interrupt at each voltage level — critical for verifying SCCR compliance on the panel nameplate. For a 480 V system, the 75.6 kA rating at 440 V is the closest published value; the actual SCCR at 480 V would need to be confirmed from the full UL/CSA curve, but this breaker is clearly intended for high-fault installations. Rated insulation voltage is 800 V, meaning the internal clearances and creepage are designed for circuits up to that level. The breaker is a 3-pole unit with no undervoltage release, no ground-fault monitoring, and no communication function — a straightforward thermal-magnetic MCCB for basic feeder protection. Power loss at rated current is 17.3 W maximum, worth noting for thermal management inside a closed panel. Operating temperature range is -25 to 70 °C, with a derating curve above 55 °C that drops the rating from 63 A down to 58 A at 70 °C. Storage range is -40 to 80 °C. The breaker ships with 2 auxiliary switches (HQ type) and the basic switch variant is 3VA11635EE360AA0.
Panel integration and dimensions
The 3VA1163-5EE36-0AC0 measures 70 mm deep, 76.2 mm wide, and 130 mm high — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures. The 76.2 mm width (3 inches) matches the common 3-pole MCCB slot pitch, so it drops into existing cutouts without re-drilling. Depth of 70 mm (2.76 in) is shallow enough for most shallow-backpan enclosures, but verify clearance for the arc-chamber venting and cable bending radius.