Limited Time SaleUS$35.99 cheaper than the new price!!
| Management number | 221473351 | Release Date | 2026/05/03 | List Price | US$24.00 | Model Number | 221473351 | ||
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This furnace limit switch is engineered to deliver reliable thermal protection and seamless integration into residential heating systems. Acting as a critical safety component, it monitors furnace temperature and automatically disconnects the burner when unsafe heat levels are detected, preventing equipment damage and mitigating fire risks. The switch’s precision calibration ensures consistent performance across varying operating conditions, restoring optimal safety to aging or faulty furnaces. Crafted for universal compatibility, it replaces worn-out switches in most gas, electric, or oil-based systems. The compact yet rugged construction utilizes heat-resistant alloys and ceramics to withstand temperatures exceeding standard operational limits, ensuring longevity even in high-stress environments. Installation is streamlined for DIY efficiency: disconnect the existing wiring, remove the mounting screws, align the new switch, and reconnect the terminals—typically completed within minutes. The hermetically sealed design prevents dust infiltration and moisture damage, reducing maintenance needs. Homeowners will appreciate its role in eliminating erratic shutdowns, uneven heating, or burner failure caused by degraded switches. For HVAC technicians, it offers a cost-effective solution to extend furnace lifespan without full system replacements. This component is indispensable for maintaining safe, efficient home heating—ideal for those prioritizing system reliability and proactive hazard prevention.48CEN024040300123,137 48CEN024060300123,137 48CEN030040300123,137 48CEN030060300123,137 48CEN036060300123,137 48CEN036060500123,137 48CEN036090300123,137 48CEN036090500123,137 48CEN042060300137 48CEN042060500137 48CEN042090300137 48CEN042090500137 48CEN048090300137 48CEN048090500137 48CEN048115300137 48CEN048115500137 48CEN048130300137 48CEN048130500137 48CEN060090300137 48CEN060090500137 48CEN060115300137 48CEN060115500137 48CEN060130300137 48CEN060130500137 48CE024040300123,137 48CE024060300123,137 48CE030040300123,137 48CE030060300123,137 48CE036060300123,137 48CE036060500123,137 48CE036090300123,137 48CE036090500123,137 48CE042060300137 48CE042060500137 48CE042090300137 48CE042090500137 48CE048090300137 48CE048090500137 48CE048115300137 48CE048115500137 48CE048130300137 48CE048130500137 48CE060090300137 48CE060090500137 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| Model | HH18HA211 |
|---|---|
| Terminal | Blade |
| Brand Name | Generic |
| Part Number | HH18HA211 |
| Switch Type | Bipolar Transistor |
| Circuit Type | 1-way |
| Contact Type | Normally Closed |
| Manufacturer | China |
| Material Type | Acrylonitrile Butadiene Styrene |
| Mounting Type | DIN Rail Mount |
| Connector Type | Clamp |
| Current Rating | 0.01 Amps |
| Operation Mode | OFF-NONE-ON |
| Item Dimensions | 0.01 x 0.01 x 0.01 inches |
| Number of Items | 1 |
| Contact Material | Aluminum |
| Operating Voltage | 0.01 Volts |
| Specification Met | ANSI C-73 |
| Included Components | HH18HA211 Carrier Bryant Payne Furnace Disc Limit |
| Number of Positions | 1 |
| Warranty Description | 30 days warranty |
| Lower Temperature Rating | 0.01 Degrees Celsius |
| Upper Temperature Rating | 0.01 Degrees Celsius |
| International Protection Rating | IP00 |
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