National Wheel-O-Vator Recessed Magnetic Door Sensor Reed Switch

High‑reliability recessed wide‑gap magnetic door sensor for wheelchair lifts and steel doors, compatible with many NWOV VPL systems, replacing legacy #M11455.

This recessed wide‑gap magnetic door sensor is designed to replace legacy reed switches (such as #M11455) in wheelchair lifts, including many National Wheel‑O‑Vator (NWOV) vertical platform lifts (VPLs), as well as other lift systems requiring the same sensor performance. Constructed for use in steel‑door environments, the sensor features a rugged unibody housing with flexible ribbed sides for secure press‑fit installation without glue, and a wide‑gap magnetic reed switch for reliable actuation even on looser‑fitting doors. The white ABS/steel housing and its 1 in diameter accommodate standard lift‑door cutouts and retrofit drilling. 

Specifications

• Contact Configuration: Normally Open (closed‑loop monitoring)
• Voltage Rating: Up to 100 V AC/DC max
• Current Rating: 0.5 A max
• Power Rating: 7.5 W/VA max
• Contact Resistance: 0.2 Ω nominal
• Sense (Gap) Distance: Nominal up to 1 in (25 mm) for “W” wide‑gap version (note: ferrous materials reduce effective range)
• Operating Temperature: –40 °F to +150 °F (–40 °C to +65 °C)
• Mounting Hole: 1 in diameter (≈ 25 mm) press‑fit in steel door; molded ABS housing with ribbed sides for retention
• Housing / Material: Flame‑retardant ABS plastic housing, steel door compatibility
• Lead: 1 ft (≈ 0.3 m) of #22 AWG wire lead
• Environmental Rating: IP67 / NEMA 1/2/3/4/4X/5/6/12

This sensor provides a robust and reliable sensing solution for wheelchair lift door applications and similar access‑equipment installations. It is designed for professional integration and installation by qualified personnel, ensuring compatibility and high performance in demanding environments. Proper installation and configuration are essential for optimal functionality and ongoing system safety.