Rating and fit
The Siemens 3VA1163-4ED26-0AA0 is a SENTRON molded case circuit breaker (MCCB) for line protection, rated 63 A continuous at 40 °C ambient with a 2-pole configuration and a TM210 thermal-magnetic overcurrent release. Breaking capacity is 121 kA at 240 V AC and 75.6 kA at 415 V AC — figures that govern fault-interruption capability for the installed service voltage. The thermal derating curve holds 63 A flat through 50 °C, then drops by 1 A per 5 °C step to 58 A at 70 °C; per the datasheet, that's the continuous-current limit under panel ambient, not the trip threshold. Rated insulation voltage is 500 V, and operating voltage is 415 V AC or 250 V DC — the DC rating is for switching power values in DC networks per the 3VA device manual.
Panel integration and environment
Dimensions are 70 mm deep by 50.8 mm wide by 130 mm high — the 50.8 mm width (2 inches) is the standard MCCB pole pitch for a 2-pole unit, so it occupies the same DIN-rail footprint as other 2-pole SENTRON breakers. Front-side protection class is IP40, meaning the breaker face is protected against tools and small wires but not against water ingress — suitable for dry indoor panel environments. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C — the storage limit governs handling and warehousing, not running conditions. Maximum power loss is 11.54 W — a figure to account for in enclosure thermal calculations when multiple breakers are ganged.
Lifecycle and sourcing
It carries no communication function, no undervoltage release, no ground-fault monitoring, and no trip indicator — it is a base thermal-magnetic MCCB for straightforward line protection.