The ABB NF31E‑13 is a compact contactor relay designed for switching and controlling auxiliary and control circuits in industrial and electrical systems. It features a block‑type design with four poles and mechanically linked auxiliary contacts in a 3 normally open + 1 normally closed (3 NO + 1 NC) configuration. The relay supports a wide control voltage range and accepts both AC and DC control signals, making it suitable for global applications where supply voltages may vary. It includes built‑in surge protection and robust construction for reliable operation in control panels, machinery, and automation systems. The device mounts easily on standard DIN rails and can be expanded with additional auxiliary contact blocks and accessories.
