Description
The Supco SHL250 is a precision-engineered snap disc auto reset limit switch designed for reliable temperature control in HVAC and heating applications. Featuring a fixed 210°F cut-in temperature and a fixed 250°F cut-out temperature, this switch provides consistent, repeatable protection against overtemperature conditions.
How It Works
The SHL250 utilizes a snap disc mechanism that opens the circuit on a rise in temperature — protecting equipment from heat-related damage. Once temperatures return to the cut-in threshold, the switch automatically resets, eliminating the need for manual intervention and reducing maintenance downtime.
Key Features
- Fixed 210°F cut-in temperature for automatic reset
- Fixed 250°F cut-out temperature for reliable high-limit protection
- Open on rise switch action — circuit opens as temperature increases
- Snap disc mechanism delivers fast, positive switching response
- Auto reset design — no manual reset required after trip
- Includes adapter flange plate for simplified mounting and installation
Applications
- Furnace and air handler high-limit protection
- Heat exchanger temperature monitoring
- Duct and plenum overheat protection
- Commercial and residential HVAC systems
- General heating equipment temperature control
Why Choose the Supco SHL250
Supco’s SHL series limit switches are trusted by HVAC professionals for their dependable snap disc performance and straightforward installation. The included adapter flange plate ensures compatibility with a wide range of mounting configurations, making the SHL250 a versatile solution for both OEM and field replacement applications.
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