The ABB NF22E‑13 is a 4‑pole contactor relay / auxiliary contactor relay designed for industrial control and automation applications. It is used to switch auxiliary and control circuits in electrical panels, machinery and control systems. The relay features two Normally Open (NO) and two Normally Closed (NC) contacts, enabling flexible control and feedback functions in automation logic or interlock circuits. The device supports a wide coil voltage range (100–250 V AC/DC), making it suitable for use with mixed control systems that operate on either AC or DC control supplies.