Hager WNC035 Key Switch Surface-Mounted 2-Pole Changeover IP44 Light Grey

Controlling circuits manually while preventing unauthorized access is a common challenge in commercial and industrial environments. The Hager WNC035 key switch solves this by allowing operation only with a key, making it ideal for applications where access must be restricted to authorized personnel.

Who is it for

This key switch is designed for electricians and facility managers who need a secure switching solution for lighting, motors, or control circuits in public buildings, schools, or industrial facilities. Its surface-mounted design simplifies installation on walls or panels without deep recesses.

Main features

• Key-operated switch with 2 keys included for secure operation
• 2-pole changeover (DPDT) switching function for versatile circuit control
• Rated operational current 10 A at 250 V AC (AC-21A) for robust performance
• IP44 protection against dust and splashing water, suitable for indoor and sheltered outdoor use
• Light grey (RAL 7035) thermoplastic housing blends with standard electrical installations
• Screw terminals accept 1.5–2.5 mm² conductors for reliable connections
• Key removable only in 0-position (off) to prevent accidental removal during operation
• 90° switching angle for clear on/off indication

Specifications

• Switch type: Key switch
• Mounting type: Surface-mounted
• Number of poles: 2
• Switching function: Changeover (DPDT)
• Rated operational current: 10 A
• Rated operational voltage: 250 V AC
• Rated insulation voltage: 400 V
• IP protection class: IP44
• Housing material: Thermoplastic
• Housing colour: Light grey (RAL 7035)
• Number of keys included: 2
• Connection type: Screw terminals
• Terminal capacity: 1.5 - 2.5 mm²
• Operating temperature range: -20 to 50 °C
• Key removal position: 0-position (off only)
• Switching angle: 90°
• Number of changeover contacts: 2
• Standards compliance: EN 60669-1

Tips

For installations exposed to rain or heavy moisture, mount the switch in a suitable enclosure to maintain IP44 protection. Use a deep surface-mount box to accommodate wiring and ensure the key is fully inserted before turning to prevent damage.