The Siemens SENTRON 3VA1110-6GF46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 100 A up to 50 °C before derating begins — at 55 °C it holds 98 A, at 60 °C it holds 96 A, and at 70 °C it still delivers 91 A, so the thermal headroom is generous for a warm panel. The TM240 overcurrent release is adjustable, letting you tune the thermal trip band to the load without swapping the breaker body. Breaking capacity is the headline here: 220 kA at 240 V, 154 kA at 415 V, and 121 kA at 440 V — that puts it squarely in the high-interrupting class for large transformer secondaries or bus-tie applications where fault current runs high. At 500 V and 690 V the rating drops to 17 kA, so for 480 V or 600 V class systems the available fault current needs checking against that ceiling.
Sizing and coordination
The insulation voltage is rated 800 V, and the N-conductor protection is designed for 100% — meaning the neutral pole is fully rated, not a switched-only version. Maximum power loss is 25 W, which matters for enclosure heat rise calculations when multiple breakers are ganged in a single panel. IP40 on the front means it's protected against tools and wires >1 mm, but not against water ingress — keep it inside a rated enclosure.
Integration
Dimensions are 70 mm deep, 101.6 mm wide, and 130 mm tall — the 4-pole width (about 4 inches) is the critical dimension for DIN-rail or mounting-plate layout in a retrofit panel. No undervoltage release, no shunt trip, no communication module, and no ground-fault monitoring on this variant — it's a straight thermal-magnetic breaker with no auxiliaries built in. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.