Potter AMS-38B Mechanical Surface Mount Contact, 5/8" Gap, N.C./N.O., Gray (4370015)

Protect doors, windows and access points with a dependable, installation-friendly magnetic contact designed for professional security systems. The Potter Electric Signal AMS-38B mechanical surface mount contact delivers consistent tamper detection and secondary-function activation for commercial and institutional applications. With a 5/8-inch (0.63 in) operating gap and AC-rated, UL/ULC-listed components, the AMS-38B is built to tolerate higher voltages and reduce nuisance alignment adjustments. The Form C contact (N.C./N.O.) and Alnico 5 magnet provide flexible wiring options for intrusion alarm panels, lighting control, and sounder activation—simplifying integration into surveillance and monitoring systems. Surface-mount, hybrid installation reduces labor time and is ideal for retrofit projects or new builds where reliable security performance is required. Specify the AMS-38B magnetic contact when you need durable, code-compliant monitoring for doors, cabinets, or other access points. Add it to your next security or surveillance installation—order now or contact your supplier for volume pricing.

• Robust perimeter protection with UL/ULC listing and AC-rated contacts to support reliable intrusion monitoring
• 5/8-inch (0.63 in) operating gap reduces alignment sensitivity for faster surface-mount installation and fewer service calls
• Form C (N.C./N.O.) contact offers flexible integration with alarm panels, lighting, and sounder circuits
• Durable Alnico 5 magnet and mechanical construction designed to withstand higher voltages than standard reed switches
• Neutral gray finish blends with commercial interiors and is available in multiple colors for coordinated installations