What this MCCB carries and where it fits
The Siemens SENTRON 3VA1110-6EF36-0JC0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current across the 40 °C to 50 °C band, with a slight derating curve starting at 55 °C down to 91 A at 70 °C. Its breaking capacity hits 220 kA at 240 VAC, 154 kA at 415 V, 121 kA at 440 V, and holds at 17 kA up to 690 V — so it handles high-fault utility feeds and transformer secondaries without cascading upstream. The rated insulation voltage is 800 V, giving headroom for 480 V and 600 V class systems. This is a line-protection design (not motor-protection), meaning it's sized for cable and busbar protection in distribution panels, not for overload-protecting a motor directly.
Mounting and integration
The breaker measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that drops into most SENTRON panelboards and distribution blocks without re-drilling. It's a fixed (non-withdrawable) design, so it's bolted directly to the busbar or mounting plate. Maximum power loss is 25 W, which matters for thermal management in a sealed enclosure — make sure the panel's dissipation rating covers that at full load. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.
Selectivity and coordination note
With a 220 kA breaking capacity at 240 V, this MCCB can be used as a main breaker in high-fault panels, coordinating with downstream 10 kA or 18 kA MCBs as long as the let-through energy is within their ratings. The 100 A continuous rating and the 3-pole configuration make it a natural fit for 100 A feeder circuits in commercial or light industrial distribution. No ground-fault monitoring is built in (this variant is 'Without' ground-fault), so if you need GF protection, you'll need an external relay or a different order code from the 3VA11 family.