The TS-470 Damper Position Switch provides open or closed position indication for compatible HVAC dampers and control assemblies. It uses an encapsulated mercury SPDT position switch mounted on a crank arm designed for a 1/2-inch horizontal damper shaft. This HVAC damper end switch changes contact state as the shaft rotates, allowing a building automation system, control panel, relay circuit, or other compatible equipment to confirm damper position. The three-conductor cable provides common, normally closed, and normally open connections for flexible control wiring. The TS-470 includes a three-foot, 18 AWG cable and adjustable crank-arm mounting for straightforward field installation. Its contacts are rated for 2 amps at 120 VAC or 1 amp at 240 VAC. Confirm the damper shaft diameter, required contact arrangement, electrical load, mounting orientation, and control-system requirements before installation. Key Benefits SPDT damper position feedback Mounts directly on a 1/2-inch damper shaft Provides open or closed damper indication Common, normally closed, and normally open connections Three-foot, three-conductor cable Adjustable crank-arm configuration Suitable for HVAC and building automation controls Common Questions What does the TS-470 damper position switch do? It changes electrical contact state according to damper-shaft position, allowing compatible controls to verify whether the damper is open or closed. How is the TS-470 wired? The green wire is common, the black wire is normally closed, and the white wire is normally open. How do I verify compatibility? Confirm that the application has a horizontal 1/2-inch damper shaft and that the SPDT contact arrangement and electrical ratings match the control circuit. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
