Supco SRL350 Manual Reset Limit Switch 350F Cutout

Product Description

The SUPCO SRL350 is a bimetal manual reset limit switch designed for temperature control applications in heating systems. It cuts out at 350 degrees F, stopping operation when a set threshold is exceeded to protect equipment from overtemperature conditions. The switch uses 1/2 inch bimetal construction in a compact form factor with vertical 1/4 inch terminals, making it suitable for tight installation spaces. Licensed HVAC technicians and heating equipment service professionals are the primary installers. The SRL350 carries UL recognition and CSA approval, confirming it meets established safety standards for electrical temperature control components.

This limit switch is used in residential and light commercial heating applications where manual reset overtemperature protection is required. The manual reset design ensures that a technician physically resets the switch after a trip event, preventing automatic restart until the root cause has been investigated. Its compact bimetal construction fits a range of furnace and heating appliance configurations. The vertical 1/4 inch terminal orientation accommodates standard quick-connect wiring configurations common in OEM and replacement installations.

Key Features

• 350 degrees F cutout temperature for overtemperature protection
• Manual reset operation requires technician intervention after trip event
• 1/2 inch bimetal construction in a compact, versatile form factor
• Vertical 1/4 inch terminals for standard quick-connect wiring
• UL recognized and CSA approved for safety compliance
• Manufactured in the United States by Sealed Unit Parts Co., Inc.

Compatibility

Designed as an OEM-style replacement limit switch for residential and light commercial heating systems requiring a manual reset bimetal temperature control with a 350 degrees F cutout rating.

Installation Notes

Installation should be performed by a licensed HVAC technician. Disconnect power to the heating system at the disconnect switch or breaker before servicing any limit switch. Verify terminal orientation and mounting clearances before securing the switch. After installation, confirm the reset function operates correctly before returning the system to service.