Description
Peerless Boiler 54257 High-Limit Temperature Switch
The Peerless Boiler 54257 is an OEM replacement high-limit temperature switch engineered to protect boiler systems from overheating. Featuring a Normally Closed (N/C), Single-Pole Single-Throw (SPST) configuration, this switch monitors boiler water temperature and interrupts the circuit when unsafe temperatures are reached — then automatically resets once the system cools to a safe operating level.
Key Specifications
- Cut-Out (CO) Temperature: 250°F — opens the circuit to shut down the burner at high-limit
- Cut-In (CI) Temperature: 190°F — closes the circuit to restore normal operation upon cooldown
- Switch Type: SPST (Single-Pole Single-Throw)
- Contact Configuration: N/C (Normally Closed)
- OEM Part Number: 54257
- Compatible Brand: Peerless Boiler
Product Features & Benefits
- Provides reliable high-limit overheat protection for cast iron and steel boilers
- 60°F differential between cut-out and cut-in prevents short-cycling
- SPST N/C design ensures the circuit opens on temperature rise, a fail-safe configuration
- Direct OEM replacement for Peerless Boiler systems — ensures proper fit and function
- Helps maintain system efficiency and extends boiler service life
Application
This high-limit switch is a critical safety component in hydronic heating and steam boiler systems. It is designed as a direct OEM replacement for Peerless Boiler equipment and is suitable for use in residential and light commercial boiler installations. Always consult the boiler manufacturer’s documentation to confirm compatibility before installation.
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