MCCB for line protection — 100 A frame, TM240 release
The Siemens SENTRON 3VA1110-3EF32-0AH0 is a 3-pole molded case circuit breaker (MCCB) designed for line protection, carrying a TM240 thermal-magnetic overcurrent release. Rated 100 A continuously at 40 °C, it derates to 91 A at 70 °C — the full current-versus-temperature curve is on record. Breaking capacity reaches 75.6 kA at 240 V, 52.5 kA at 415 V, and 11.9 kA at 690 V, so it handles high fault currents across common low-voltage distribution levels. The auxiliary switch block includes 2 auxiliary switches plus 1 trip alarm switch (HQ designation), and a local trip indicator is present. Insulation voltage is rated 800 V; maximum power loss is 25 W. Operating temperature range is -25 °C to +70 °C, storage from -40 °C to +80 °C. Dimensions: 130 mm height, 76.2 mm width, 70 mm depth — fits standard SENTRON 3VA panel cutouts and busbar systems. No undervoltage release, no communication function, no ground-fault monitoring on this variant.