80 A MCCB with TM210 release — panel fit and breaking capacity
The Siemens SENTRON 3VA1080-2ED36-0JC0 is a 3-pole molded case circuit breaker rated for line protection, carrying a continuous current Iu of 80 A across the 40 °C to 50 °C ambient band — no derating needed in a typical 40 °C panel interior. Above that, the thermal curve steps down to 76.8 A at 55 °C and 72 A at 70 °C, so a warm cabinet or high-density layout requires a check against the actual ambient. Breaking capacity runs 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V — the 415 V figure covers the common 400 V three-phase distribution bus. The TM210 overcurrent release is a fixed thermal-magnetic type; no electronic adjustment or communication function is fitted, which keeps the part simple for standard feeder protection. Dimensions are 70 mm deep, 76.2 mm wide, and 130 mm high — the width is a standard 3-pole MCCB footprint for DIN-rail or screw-mount panel integration. Front protection is IP40, so it is suited for enclosed distribution boards but not for washdown or outdoor exposure without an additional enclosure.
Integrated accessories — shunt trip and auxiliary switches
This variant ships with a shunt trip release (STL) for remote tripping and two HQ auxiliary switches for status feedback to a PLC or indication lamp. The auxiliary contact version is factory-fitted as 2 auxiliary switches HQ, and the shunt trip is integrated — no field assembly required. The auxiliary trip order code is 3VA9688-0BL32 if a replacement module is needed. No undervoltage release, ground-fault monitoring, or phase-failure detection is included. For applications requiring those functions, a different 3VA variant or an external relay would be needed.
Mechanical endurance and storage range
Rated for 15 000 mechanical latching cycles, which covers the service life of most fixed feeder applications. Storage temperature spans -40 °C to 80 °C, while operating ambient runs -25 °C to 70 °C — the storage range is wider because it governs handling and warehousing, not running conditions.