Siemens 3VM1140-4ED42-0AA0 — 40 A IEC Frame 160 Circuit Breaker
The Siemens 3VM1140-4ED42-0AA0 is a 4-pole IEC frame 160 circuit breaker rated for line protection with a TM210 thermal-magnetic trip unit set at 40 A overload (Ir=40 A, not adjustable) and fixed short-circuit protection at Ii=10 x In. Breaking capacity class S delivers 36 kA at 415 V, which means it can safely interrupt fault currents up to that level on a 415 V three-phase system without upstream cascading — a key selectivity figure for panel builders coordinating downstream feeders. This is a Product class C item: manufactured or produced to order, which cannot be reused or returned against credit. Factor that into your BOM planning — this isn't a shelf-stocked SKU you can swap out if the order changes.
Sourcing & Lifecycle
Lifecycle status is listed as Active (current production). The part is sourced and quoted to order against an RFQ through independent distribution; availability and current pricing are confirmed at quote time. Given the Product class C designation, lead times reflect a build-to-order cycle rather than off-the-shelf dispatch.
Compliance & Documentation
RoHS compliant since 01 June 2012. REACH Article 33 duty to inform applies: the part contains lead (CAS 7439-92-1) above 0.1% w/w in the candidate list. Export control classification is AL: N / ECCN: N — no special licensing required for standard commercial shipments.
Integration Note
Mounts in a standard panel or enclosure on a DIN rail or direct-mount busbar system. The 4-pole configuration with N conductor unprotected (solid neutral, no overcurrent protection on the neutral pole) is typical for TN-S or TN-C-S systems where the neutral is bonded to ground at the source and not switched or protected. Packaging dimensions 150 x 119 x 116 mm — fits a standard 200 mm deep enclosure with room for wiring gutters.