ABB NF22E hulprelais 24-60V AC/20-60V DC 2NO+2NC schroefklemmen DIN-rail

In motor control centers and industrial automation panels, the ABB NF22E auxiliary contactor handles auxiliary circuit switching with dependable precision. This 4-pole block contactor provides 2 normally open and 2 normally closed contacts, driven by an electronic wide-range coil that accepts 24-60 V AC at 50/60 Hz or 20-60 V DC. It mounts on standard DIN rail or with screws, and screw terminals ensure secure wiring in demanding environments.

Key specifications

• Product type: Auxiliary contactor (block contactor)
• Number of auxiliary contacts: 2 NO + 2 NC
• Coil voltage: 24-60 V AC (50/60 Hz) / 20-60 V DC
• Rated operational current: 4 A (AC-15, 220-240 V), 3 A (AC-15, 380-440 V), 6 A (DC-13, 24 V)
• Rated insulation voltage (Ui): 690 V
• Rated impulse withstand voltage (Uimp): 6 kV
• Mounting: DIN rail or screw mounting
• Terminals: Screw terminals
• Operating temperature: -40 to +70 °C
• Degree of protection: IP20
• Electrical durability: 1.5 million cycles (AC-15)
• Mechanical durability: 10 million cycles
• Standards: IEC 60947-5-1, UL, CSA

Why choose it

The NF22E combines a wide-range electronic coil with robust contact performance, reducing inventory needs across different control voltages. Its compact block design saves panel space while delivering high switching reliability. With compliance to international standards, it integrates seamlessly into global machine builds.

Ideal use cases

• Switching auxiliary circuits in motor control centers
• Interlocking and signaling in industrial automation
• Control of contactor coils and relays
• Status feedback in process control systems

Good to know

The electronic coil ensures stable operation across a wide voltage range, making the NF22E suitable for applications with fluctuating control voltages. Its screw terminals accept a variety of wire sizes, and the IP20 protection is appropriate for installation inside enclosures. For maintenance, the contactor's mechanical and electrical endurance ratings indicate long service life under typical switching loads.