GRI 18512W 3/4" Steel Door Recessed Switch Set, Standard Gap, 5W, 175VDC, 0.25A, Open Loop, N/C, B, White

Protect entrances with reliable, low-profile contact sensing engineered for commercial and industrial security. The George Risk Industries GRI 18512W recessed magnetic contact delivers dependable perimeter monitoring for steel doors and frames, keeping access points secured without compromising door operation or aesthetics. Designed as a 3/4" recessed steel door switch set with 12" leads, this magnetic contact supports a 175V DC rating and 0.25A input while consuming just 5W, making it compatible with most wired alarm and surveillance systems. The normally-closed (N/C) open-loop configuration and standard 0.5" gap simplify integration into monitoring panels; an End-of-Line (EOL) resistor option enhances fault detection and tamper monitoring. Built to UL/ULC standards and backed by a lifetime warranty, the GRI 18512W minimizes service calls and lifecycle costs for facilities managers and installers. Ideal for commercial doors, institutional sites, and residential steel-door upgrades — specify the GRI 18512W for robust, discreet security sensing in new builds or retrofit projects. Order now to streamline installation and strengthen your perimeter security.

• Reliable perimeter protection with a tamper-resistant recessed design that secures steel doors and frames for continuous monitoring
• Quick, low-cost installation with 3/4" recessed footprint and 12" leads or PC-board terminals to reduce labor and downtime
• Compatible with commercial alarm systems: normally closed (N/C) open loop, standard 0.5" gap and built-in End-of-Line (EOL) resistor for easy integration
• Heavy-duty steel construction and UL/ULC approvals provide long-term durability and compliance for high-traffic environments
• Lifetime warranty and proven George Risk Industries quality for reduced maintenance and total cost of ownership