GRI 4402 Industrial Surface Mount Switch Set, 2-1/2" Standard Gap, 5W, 175VDC, 0.25 Amp, SPDT, C, Aluminum

Deliver consistent, industrial-grade perimeter security with the George Risk Industries 4402 magnetic contact. Designed as a heavy-duty surface-mount magnetic contact, the 4402 provides dependable door and gate monitoring for commercial and industrial sites where weather resistance and rugged construction matter. The Form C (SPDT) contact and 2-1/2-inch standard gap support flexible integration with access control, alarm panels and surveillance systems, while the 175 VDC / 0.25 A rating ensures compatibility with common security electronics. Built from robust aluminum and offered with armored or jacketed cable options, this magnetic contact stands up to outdoor exposure, high-traffic gates, overhead garage doors, and walk-in freezers. UL/ULC approvals and a lifetime warranty reduce maintenance costs and downtime for security teams and installers. Each switch set ships with brackets, hardware and mounting instructions for a faster, predictable install. Specify the GRI 4402 magnetic contact for your next perimeter security, access control, or surveillance monitoring project — order now or contact us for custom cable lengths and mounting kits.

• Rugged, weather-resistant aluminum housing protects electronics for reliable perimeter security in harsh environments
• 2-1/2-inch standard gap and SPDT (Form C) output for flexible monitoring and access control integration
• UL/ULC approved with lifetime warranty for long-term confidence in commercial and industrial installations
• Surface-mount design and included mounting hardware speed installation on gates, doors, and overhead tracks
• Optional armored or jacketed stainless steel cable and mounting kits available for chain link gates, garage doors, and freezer doors