International Comfort Products 709557 Limit Switch Auto Reset - 160-40

The International Comfort Products 709557 is a temperature-activated limit switch designed for use in residential and light commercial HVAC systems. This automatic reset limit switch features a 160°F opening temperature and a 40°F differential, meaning it opens at 160°F and closes when the temperature drops back to approximately 120°F.

Key Features:

• 160°F opening temperature for overheat protection
• 40°F differential for automatic reset functionality
• Snap-action design for reliable operation
• Mounts directly to furnace heat exchanger or plenum
• OEM replacement part for International Comfort Products systems

This limit switch serves as a critical safety component that protects your heating system from overheating by interrupting power to the burner when excessive temperatures are detected. The automatic reset feature allows the system to resume normal operation once temperatures return to safe levels, eliminating the need for manual intervention.