MCCB for line protection — 100 A continuous, TM210 release
The Siemens 3VA1010-3ED36-0CH0 is a SENTRON molded case circuit breaker (MCCB) configured for line protection — meaning it guards feeders and distribution branches against overload and short circuit, not motor or generator duty. It carries a rated continuous current Iu of 100 A and uses a TM210 thermal-magnetic overcurrent release. The 3-pole design fits three-phase distribution panels where the neutral is protected separately or not at all. Breaking capacity is specified at four voltage levels: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at 690 V. For a 415 V distribution board — common in European industrial plants — the 52.5 kA figure gives substantial headroom above the typical 25–36 kA prospective fault level, so selectivity with downstream MCBs is achievable without a current-limiting upstream breaker. Thermal derating is published across the full operating range: the breaker holds 100 A from 40 °C through 50 °C, then steps down to 96 A at 55 °C, 94 A at 60 °C, 92 A at 65 °C, and 90 A at 70 °C. If the panel ambient sits at 55 °C — not unusual in a sealed enclosure near process heat — the usable rating drops to 96 A, so the feeder should be loaded to that figure, not the nameplate 100 A.
Integrated undervoltage release and auxiliary contacts
This variant ships with an undervoltage release (UVR) factory-fitted. The UVR trips the breaker when supply voltage drops below a threshold — standard on safety-related feeders where a loss of control voltage must open the circuit. The auxiliary contact block provides 2 auxiliary switches plus 1 trip alarm switch (HQ configuration), enough to signal breaker status back to a PLC or annunciator panel without adding a separate contact module. The integrated auxiliary trip order code is 3VA9608-0BB24 — relevant if you need a replacement or spare for the internal shunt trip assembly. Front-side protection is IP40, meaning tools and fingers are kept out but the breaker is not sealed against water ingress; it belongs inside a panel, not in a washdown zone.
Active production — no lifecycle concern
The lifecycle stage is listed as current, meaning Siemens continues to manufacture this order code without a phase-out notice. For a BOM line that needs repeatability across builds, this is the straightforward choice — no last-time-buy clock, no successor cross-reference to manage. The part is sourced to order through independent distribution; availability and current pricing are confirmed at quote time.
Envelope and panel fit
Dimensions are 130 mm height, 76.2 mm width, 70 mm depth. The 76.2 mm width is a standard 3-pole MCCB footprint — three 25.4 mm (1-inch) pole spacings — so it drops into existing panel cutouts and busbar systems designed for that pitch. The 70 mm depth is shallow enough for most 200 mm deep enclosures; verify clearance for the UVR wiring and auxiliary cable bend radius if the panel is tight.