1SFA611621R1054

ABB 1SFA611621R1054 (MLBL-05L) is a blue modular LED illumination block designed for industrial control panels, pilot lights, illuminated push buttons, and automation systems. Operating at 110–130V DC, it features an integrated blue LED that provides clear visual indication of equipment status, operating conditions, and electrical control signals. Part of ABB's modular plastic pilot device range, this compact LED block is designed for front mounting with compatible ABB operators and accessories.