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. 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.
Lifecycle status is listed as Active (current production). Given the Product class C designation, lead times reflect a build-to-order cycle rather than off-the-shelf dispatch.
RoHS compliant since 01 June 2012.