The Siemens SENTRON 3VA1110-4ED36-0AA0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 100 A continuously at 40 °C with a TM210 thermal-magnetic release. The interrupting capacity hits 121 kA at 240 V, dropping to 75.6 kA at 415 V and 52.5 kA at 440 V — numbers that matter when you're coordinating selectivity downstream of a transformer or tying into a high-fault panel. Insulation voltage is rated 800 V, so it's comfortable on 480 V or 600 V class systems without derating the dielectric.
What the ratings mean for fit
The 100 A rating holds flat from 40 °C through 50 °C — no derate needed in a warm panel — then drops to 98 A at 55 °C and 91 A at 70 °C. If your enclosure runs hot, you still keep 91 A continuous. The TM210 release means thermal protection for overloads and a fixed magnetic trip for short-circuits; no electronic adjustment, so it's a straightforward swap for a panel that was designed around a thermal-magnetic MCCB. Power loss maxes at 25 W, manageable for a DIN-rail or backplate mount in a ventilated enclosure. IP40 on the front means the breaker face is protected against tools and wires over 1 mm — standard for a panel-mounted device. No ground-fault monitoring, no undervoltage release, no communication function built in. This is a plain-vanilla line-protection MCCB; if you need shunt trip, auxiliary contacts, or earth leakage, you add modules externally.
Panel integration and mounting
Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — fits standard Siemens SENTRON 3VA panel cutouts and busbar systems. Mounts on a backplate or DIN rail via the accessory adapter; the 3-pole footprint matches the 3VA family, so if you're swapping from a 3VA1110-5ED36-0AA0 or similar, the busbar positions and lug spacing are identical. No rewiring needed for the power connections.