Description
The Sterling HVAC 11J11R00306-001 is an automatic reset limit switch engineered to protect heating equipment from dangerous overtemperature conditions. With a switching range of 150°F to 190°F, this limit switch monitors system temperatures and automatically interrupts the circuit when the set point is exceeded, then resets once temperatures return to a safe operating level — eliminating the need for manual intervention.
Key Features
- Automatic (AUTO) reset operation for continuous, hands-free protection
- Temperature operating range: 150°F to 190°F
- Designed as a direct OEM replacement for compatible Sterling HVAC heating units
- Interrupts burner or heating circuit on overtemperature to prevent equipment damage
- Reliable bimetal sensing element for accurate, repeatable temperature response
- Compact design for straightforward installation in tight equipment spaces
Application
This limit switch is a genuine Sterling HVAC replacement part intended for use in unit heaters, duct furnaces, and other commercial or industrial heating equipment where Sterling HVAC specifies this component. It serves as a critical safety control, shutting down the heat source if temperatures exceed the rated threshold and automatically restoring operation once conditions normalize.
Why Choose an OEM Limit Switch?
- Ensures compatibility with original equipment design specifications
- Maintains system warranty and safety certifications
- Reduces troubleshooting time with a guaranteed drop-in fit
- Provides peace of mind with factory-matched temperature ratings
Specifications
- Brand: Sterling HVAC
- Part Number: 11J11R00306-001
- Switch Type: Automatic Reset (AUTO) Limit Switch
- Temperature Range: 150°F – 190°F
- Application: Commercial/Industrial Heating Equipment







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