George Risk Industries Inc. 200-36HD Overhead Door Contact

Product Description

The GEORGE RISK INDUSTRIES INC. 200-36HD is a normally closed (NC) overhead door contact designed for floor-arm cabinet mounting. This type of magnetic or mechanical contact is used to monitor the open and closed position of overhead doors in commercial and industrial security or access control systems. It signals a change in door state to a connected alarm panel, building automation system, or access controller. Electricians and low-voltage security technicians are the typical installers for this device.

The 200-36HD is suited for overhead door applications where a floor-arm cabinet-style mounting is required. It is commonly installed on roll-up doors, sectional overhead doors, and similar large-format door types found in warehouses, loading docks, garages, and commercial facilities. The normally closed configuration means the circuit is closed at rest and opens when the door moves, triggering the connected monitoring system.

Key Features

• Normally closed (NC) circuit configuration for standard alarm loop integration
• Floor-arm cabinet mounting style for overhead door installations
• Designed for commercial and industrial overhead door monitoring
• Sold as an individual unit (each)

Compatibility

Designed as an OEM-style replacement or new-installation contact for overhead door security and access control systems requiring a floor-arm cabinet-mount, normally closed door contact.

Installation Notes

Installation is typically performed by a licensed electrician or low-voltage security technician in accordance with NEC guidelines for alarm and signal circuits. De-energize the connected alarm panel or access control system before wiring the contact. Ensure the mounting surface on the floor arm cabinet is clean and provides a secure, stable base for consistent contact actuation. Verify circuit continuity with a multimeter after installation before returning the system to service.