Miscellaneous Product TS-470 Switch

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.