ABB CL2-502Y Industrial Grade Solid State Relay Module System

ABB CL2-502Y is a compact 22 mm panel-mounted pilot indicator from ABB’s CL2 family, featuring an integrated yellow LED and a nominal 24 V AC/DC supply. The unit fits a standard 22 mm (Φ22) mounting hole and carries ABB part number 1SFA619403R5023, identifying it as the yellow indicator variant in ABB’s CL2 pilot-light lineup. The yellow LED indicator provides a clear signal for machine status, power presence, or process condition in 24 V control circuits, making it a common choice for signaling on conveyors, assembly lines, and packaging equipment. Designed for dense control panels and modular enclosures, the CL2-502Y delivers compact, LED-based illumination that remains visible in typical industrial lighting conditions. ABB catalogs and listings present CL2-502Y as the yellow 24 V indicator option, underscoring its role as a dedicated status indicator in automation and control schemes alongside contactors, relays, and PLC-driven logic. With ABB’s reputation for industrial indicators, CL2-502Y supports quick visual feedback in applications where space is limited and reliable signaling is essential.