SENTRON 3VA1010-3ED42-0BC0 — 100 A MCCB for Line Protection
Breaking capacity runs 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V — enough for most industrial panelboards and sub-distribution boards where fault current is high at the lower voltages.
Temperature Derating and Panel Fit
Above that it derates: 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C. The 101.6 mm width (4 inches) is the standard MCCB footprint for a 4-pole frame in this class — it drops into a SENTRON panelboard or a DIN-rail adapter without surprises. Front IP40 means the breaker face is protected against tools and small wires, but the rear terminals are open to the panel interior, so clearance to live busbars follows standard IEC 60947-2 rules.
Comes with 2 auxiliary switches (HQ type) factory-fitted — these change state with the breaker mechanism, not the handle position, so they report the actual contact status. Useful for a remote open/closed indication or to interlock a downstream contactor. An undervoltage release (UVR) is built in (design: undervoltage release). The UVR coil is a separate order (3VA9608-0BB11) if you need a replacement or spare.