Modine 5H0757690008 L185-40F High Limit Switch for Unit Heaters

The Modine 5H0757690008 is a genuine OEM high limit switch rated at L185°F / -40°F, also known by Modine's internal designation as part number 75980 (SWITCH, OHEAT, STLK). This critical safety component is designed as a direct replacement for Modine unit heaters to guard against overheating and protect the heating system.

The high limit switch continuously monitors the temperature within the heating unit. When internal temperatures exceed the preset limit of 185°F, the switch automatically interrupts the electrical circuit, shutting down the heater to prevent potential fire hazards or damage to the equipment. This automatic overheat protection ensures safe, reliable operation in residential, commercial, and industrial heating applications.

Key Features:

• Genuine OEM Modine replacement part
• High limit (cutout) temperature: 185°F
• Reset differential: -40°F (manual or auto reset)
• Part number cross-reference: 75980 / 5H0757690008
• UPC: 046629759806
• Designed for Modine unit heaters in commercial and industrial HVAC applications
• Protects against overheating by interrupting the electrical circuit at the preset temperature limit

Replacing a faulty high limit switch restores proper overheat protection to your Modine unit heater, ensuring safe and compliant operation. Always ensure power is disconnected before installation. Use a multimeter to verify continuity on the existing switch before replacement.