Siemens 3VA1080-2ED36-0KC0 — 80 A SENTRON MCCB, Line Protection, TM210 Release
The Siemens 3VA1080-2ED36-0KC0 is a SENTRON molded case circuit breaker (MCCB) rated for 80 A continuous current at 40 °C, with a 3-pole configuration and a TM210 thermal-magnetic overcurrent release. It is designated for line protection per DIN EN 81346-2 reference code Q. Breaking capacity reaches 52.5 kA at 240 V and 32 kA at 415 V, dropping to 13.6 kA at 440 V and 7.5 kA at 690 V. These figures define the maximum fault current the breaker can safely interrupt at each voltage level — critical for verifying SCCR compliance in the distribution panel. The TM210 release provides fixed thermal and magnetic trip settings, suited for protecting cable and busbar runs against overload and short-circuit conditions. No undervoltage release, no ground-fault monitoring, and no communication function are fitted on this variant — it is a straightforward line-protection device without auxiliary electronics.
Thermal Derating and Ambient Performance
Rated continuous current holds at 80 A from 40 °C through 50 °C ambient. Above that, derating begins: 76.8 A at 55 °C, 75.2 A at 60 °C, 73.6 A at 65 °C, and 72 A at 70 °C. If the panel interior runs hot — common in sealed enclosures or high-density MCC rows — the 80 A frame may need to be applied at a lower continuous load to stay within the thermal curve. Operating ambient range spans -25 °C to 70 °C; storage range extends from -40 °C to 80 °C. The storage limits govern handling and warehousing, not running conditions.
Physical Fit and Auxiliary Options
Dimensions: 130 mm height, 76.2 mm width, 70 mm depth. The 76.2 mm width matches the standard 3-pole MCCB footprint for DIN-rail or panel-mount installation. IP40 on the front face provides basic protection against solid objects larger than 1 mm; the breaker is not rated for washdown or outdoor exposure without an additional enclosure. Comes with 2 auxiliary switches (HQ version) pre-installed. The integrated shunt trip (STL) is specified as order code 3VA9688-0BL33 — verify compatibility if replacing an existing trip unit. No trip indicator is fitted on this variant. Latching endurance: 15,000 operations.