Line protection MCCB — 63 A, 3-pole, TM210 release
The Siemens SENTRON 3VA1063-3ED32-0BH0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current Iu of 63 A at 40 °C. The TM210 thermal-magnetic release handles overload and short-circuit protection without voltage-trip or phase-failure detection — a straightforward, non-communicating breaker for standard distribution panels. Interrupting capacity reaches 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V — figures that cover most industrial service-entrance and sub-distribution applications. At 690 V the rating drops to 7.5 kA, so confirm available fault current if the breaker lands on a 690 V bus. The unit includes an undervoltage release (UVR) and comes with 2 auxiliary switches plus 1 trip alarm switch (HQ variant). The integrated auxiliary trip is order code 3VA9608-0BB11. Mechanical endurance is rated at 15,000 operations.
Thermal derating and ambient range
Rated current holds at 63 A from 40 °C through 50 °C. Above that it derates: 60.48 A at 55 °C, 59.22 A at 60 °C, 57.96 A at 65 °C, and 56.7 A at 70 °C. Operating ambient spans -25 °C to 70 °C; storage range is -40 °C to 80 °C. The front face carries IP40 protection — suitable for dry indoor panels.
Dimensions and panel fit
Footprint: 76.2 mm wide, 130 mm tall, 70 mm deep. The 3-pole frame fits standard SENTRON 3VA panel cutouts and busbar systems. Undervoltage release and auxiliary switches are factory-installed — no field-assembly required for the listed configuration.