Description
The Supco L125 is a precision-engineered snap disc auto reset limit switch designed to provide reliable over-temperature protection in a wide range of HVAC, appliance, and heating applications. With a fixed 115°F cut-in temperature and a fixed 125°F cut-out temperature, this switch responds quickly and consistently to temperature changes, helping to safeguard equipment from thermal damage.
How It Works
The L125 utilizes a snap disc bimetal element that responds rapidly to heat. When the sensed temperature rises to the 125°F cut-out set point, the switch opens the circuit (open on rise action), interrupting power to the protected component. Once temperatures fall back to the 115°F cut-in set point, the disc snaps back and automatically resets the circuit — no manual intervention required.
Key Features
- Fixed 115°F cut-in temperature for automatic circuit reset
- Fixed 125°F cut-out temperature for reliable over-temperature protection
- Open on rise switch action — circuit opens as temperature increases
- Snap disc bimetal design for fast, consistent response
- Auto reset operation — no manual reset required after trip
- Cross-reference: 60T11-610001
- Compact form factor for easy installation in tight spaces
Typical Applications
- Residential and light commercial HVAC systems
- Furnace and air handler limit protection
- Appliance over-temperature safety circuits
- Heating elements and heat exchanger protection
- OEM replacement and retrofit installations
Product Specifications
- Brand: Supco
- SKU / Part Number: L125
- Cross-Reference Part Number: 60T11-610001
- Cut-In Temperature: 115°F (fixed)
- Cut-Out Temperature: 125°F (fixed)
- Switch Action: Open on Rise
- Reset Type: Auto Reset
- Disc Type: Snap Disc







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