What the CL-LER.2O actually adds to a logic-relay stack
ABB 1SVR440709R5000 is the CL-LER.2O expansion module designed to sit on the side or downstream of an ABB logic-relay base unit, contributing 0 digital inputs and 2 relay outputs to the overall I/O count of the relay island. Because the expansion carries only outputs, the typical deployment is a base logic relay handling the conditional logic and sensor wiring, with this module providing the two switched contacts needed to drive a load the base alone cannot reach — a second motor contactor coil, a signal lamp, or an auxiliary alarm contact on the panel door.
Lifecycle read and how to source it
Independent distribution quotes the part against an RFQ at current production pricing; availability, lot size, and any pack quantity are confirmed at quote time rather than carried as standing stock.