The Siemens SENTRON 3VA1110-3FD46-0AA0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying a continuous current of 100 A and a breaking capacity of 76 kA at 240 V. The TM210 thermal-magnetic release handles overload and short-circuit protection in a single package — no separate trip unit to order. Rated insulation voltage sits at 800 V, so it's comfortable in 480 V and 600 V distribution panels without derating the insulation gap.
Breaking capacity across voltage levels
Breaking capacity drops as voltage rises: 53 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V. That 11.9 kA at 690 V is the figure that governs in a 690 V industrial distribution — enough for most motor control centers, but verify against the available fault current at the panel main.
Thermal derating and panel fit
The breaker holds 100 A from 40 °C up to 50 °C ambient. At 55 °C it derates to 98 A, at 60 °C to 96 A, and at 70 °C to 91 A. If the panel ambient runs hot — say a sealed enclosure near a furnace line — that 91 A at 70 °C is the number to size the load against, not the 100 A nameplate. Front IP40 means the breaker face is protected against tools and wires larger than 1 mm, but the enclosure itself needs to handle the rest. Dimensions are 130 mm high, 101.6 mm wide, 70 mm deep — a standard 4-pole MCCB footprint that drops into most SENTRON panelboards without re-drilling the mounting plate.
Lifecycle and sourcing
Marked as current production — no end-of-life notice, no last-time-buy window active. This is the standard 100 A 4-pole variant in the 3VA line, so it's the one most panel schedules carry. Sourced to order against an RFQ through independent distribution; availability and current pricing confirmed at quote time.