What this MCCB delivers for your panel
The Siemens SENTRON 3VA1163-3EF36-0AB0 is a 3-pole molded case circuit breaker rated for 63 A continuous current at 40 °C, with a TM240 thermal-magnetic release that handles overload and short-circuit protection without external trip units. Its interrupting capacity hits 75.6 kA at 240 V and 52.5 kA at 415 V — enough headroom for most industrial distribution panels where fault currents run high. The 70 mm depth and 76.2 mm width mean it fits standard SENTRON mounting footprints, and the IP40 front protection keeps dust out of the enclosure face.
Ratings that matter for your BOM line
Rated continuous current Iu is 63 A, and it holds that rating from 40 °C through 50 °C without derating. At 55 °C it still carries 60.48 A, and at 70 °C it delivers 56.7 A — useful when the breaker sits in a warm enclosure near other heat sources. The interrupting ratings span multiple voltage levels: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 10.5 kA at 690 V. That 690 V number is the one to check if your line runs at 600 V or 690 V class; it still clears 10.5 kA, which covers most secondary distribution faults. The rated insulation voltage Ui is 800 V, so the breaker's internal clearances are sized for that ceiling.
What's built in and what's left out
The breaker ships with 2 auxiliary switches HP (high-performance) integrated, so you get remote status indication without adding a separate accessory module. There is no undervoltage release, no voltage trigger, no phase failure detection, no ground fault monitoring, and no communication function — this is a straight line-protection MCCB, not a smart breaker. The TM240 release is fixed, not adjustable for long-time pickup, but the adjustable response time tr max is 1 second. Latching endurance is rated at 15,000 operations, which is typical for a panelboard main or feeder breaker that cycles infrequently. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.