The Siemens 3VA1110-3EF32-0AF0 is a SENTRON molded case circuit breaker (MCCB) sized for line protection in distribution panels. Rated 100 A at 40 °C continuous, it carries that rating flat through 50 °C before a mild derate begins — 98 A at 55 °C, 91 A at 70 °C. The 3-pole body with TM240 thermal-magnetic release gives fixed thermal and magnetic trip settings; no undervoltage release or communication function is fitted on this variant.
Breaking capacity and selectivity
Breaking capacity ramps from 75.6 kA at 240 V down to 11.9 kA at 690 V. At 415 V it clears 52.5 kA, which gives headroom for most industrial service-entrance and feeder applications without upstream fusing. The 3VA1110-5ED36-0AC0 sibling uses an electronic ETU release instead of the TM240 thermal-magnetic — if your coordination study calls for adjustable long-time, short-time, and instantaneous settings, that variant is the functional fit; if fixed thermal-magnetic is acceptable, this 3EF32 carries the same frame and footprint.
Panel integration
The 76.2 mm wide body (3 inches) fits standard 3-pole MCCB cutouts. Depth is 70 mm, height 130 mm. Maximum power dissipation is 25 W — check thermal rise in a sealed enclosure. Operating range is -25 °C to 70 °C; storage from -40 °C to 80 °C. Insulation voltage rated at 800 V.