George Risk Industries 4700A 3 Gap Track Mount Switch Set

Product Description

The George Risk Industries 4700A is a three-gap track mount switch set designed for overhead door contact applications. It mounts directly to the door track and detects door position through a series of three magnetic gap switches, providing reliable open and closed status signals to access control panels, alarm systems, or building automation equipment. Licensed alarm system installers and access control technicians are the primary trade professionals who spec and install this device. It is sold as a complete set, meaning all switch components needed for the three-gap configuration are included in one unit of measure.

The 4700A is intended for overhead door installations where single-point contact coverage is insufficient and multiple position zones along the door travel path must be monitored. Typical applications include commercial roll-up doors, sectional overhead doors in warehouse and loading dock environments, and secured access points where door position must be verified at more than one stage of travel. The three-gap design allows installers to detect fully open, fully closed, and intermediate door positions from a single track-mounted assembly.

Key Features

• Three-gap configuration monitors multiple door positions along the travel path
• Track mount design integrates directly with standard overhead door track hardware
• Complete switch set sold as one assembly — all components included per unit
• Suited for access control, intrusion alarm, and building automation signal inputs
• Overhead door contact category rating for commercial and industrial door applications

Compatibility

Designed as an OEM-style replacement or new-installation switch set for overhead door contact applications requiring a three-gap track-mounted configuration.

Installation Notes

Installation of overhead door contact switch sets is typically performed by licensed alarm system technicians or access control installers. De-energize all associated control panels and disconnect power to any connected alarm or automation equipment before beginning wiring work. Mounting hardware and wiring should comply with applicable local codes and NEC low-voltage wiring requirements. Do not force-fit the track mount bracket — verify track profile compatibility before securing the assembly.