Class and panel use
The 1SBL181001R3610: Electrical contactors in this class are the switched power element in motor and lighting control panels, where the coil is energised from a control circuit and the main poles carry the line current to the load.
Sourcing posture
Sourcing is qualitative and runs against an RFQ: ABB contactors in this format are specified into the BOM line and quoted to order, with no firmware or software version slot on a contactor to track on the way in.