MCCB with TM210 release — 40 A, 3-pole, 75.6 kA at 240 V
The Siemens SENTRON 3VA1040-3ED36-0AD0 is a 3-pole molded case circuit breaker rated 40 A continuous current (Iu) at 40 °C, carrying the full 40 A through 50 °C before derating begins — at 55 °C it delivers 38.4 A, at 70 °C it still holds 36 A. The TM210 thermal-magnetic release handles overload and short-circuit protection without electronic adjustment, so it is a fixed-trip breaker suited for standard feeder and motor branch circuits where selectivity is set by the thermal curve, not a dial. Interrupting 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 — numbers that place it in the high-breaking category for a 40 A frame, meaning it can clear faults up to those levels without upstream fuses in most industrial distribution panels. Rated insulation voltage is 800 V, so it is comfortable on 480 V and 600 V class systems with headroom. The breaker mounts in a standard SENTRON 3VA panel footprint — 70 mm deep, 76.2 mm wide (roughly 3 inches), 130 mm tall. Front IP40 protection keeps dust out of the enclosure face. It ships with three auxiliary switches (HQ type) for status feedback to a PLC or annunciator panel.
Current lifecycle — no LTB or EOL pending
The operating temperature range is -25 °C to +70 °C, storage from -40 °C to +80 °C. Mechanical endurance is rated at 15,000 operations.
Sourcing and fit considerations
The 3VA1040-3ED36-0AD0 is a 3-pole, 40 A MCCB with a TM210 release — no undervoltage release, no shunt trip, no ground-fault monitoring, no communication module. It is a straight thermal-magnetic breaker for line protection. If your BOM calls for the same frame with a different release (electronic ETU or higher amp rating), this is not that variant. But for a fixed-trip 40 A feeder breaker in a SENTRON panel, this is the exact order code.