Description
York S1-2845-3181 Auto-Reset Limit Switch Overview
The York S1-2845-3181 is an OEM auto-reset (A/R) limit switch engineered for use in York heating systems and furnaces. Designed to protect equipment from overheating, this limit switch automatically opens the circuit at 170°F and resets by closing at 140°F, providing reliable, repeatable thermal protection without the need for manual intervention after a fault condition clears.
Key Features
- Auto-reset (A/R) operation — automatically restores circuit continuity once temperatures return to safe levels
- Opens at 170°F to interrupt the heating circuit and prevent overheating damage
- Closes at 140°F to restore normal operation once the unit cools
- OEM York replacement part — ensures proper fit and function in compatible York furnace and heating applications
- Durable construction built to withstand repeated thermal cycling
- Direct drop-in replacement for original equipment limit switches in applicable York systems
Specifications
- Brand: York
- Part Number / SKU: S1-2845-3181
- Switch Type: Auto-Reset (A/R) Limit Switch
- Opening Temperature: 170°F
- Closing Temperature: 140°F
Application
The S1-2845-3181 limit switch is used in York furnaces and heating units as a primary or auxiliary high-limit safety control. It monitors heat exchanger or plenum temperatures and shuts down the burner or blower circuit when unsafe temperatures are detected, then automatically resets when the system cools — minimizing downtime and service calls.
Reviews
There are no reviews yet.