The ABB NF40E‑13 is a compact control/contactor relay designed for use in industrial and automation control circuits. It is part of ABB’s NF relay series and features a four‑pole switching configuration with four normally open (NO) contacts, making it suitable for controlling and switching auxiliary circuits, loads, and control signals. The relay supports a wide control voltage range that can accept both AC and DC inputs, reducing the need for separate coil variants. Its robust construction and screw‑terminal connections make it reliable for frequent switching operations in control panels, machinery control systems, and automation environments.
