Modine 5H0680740000 Limit Switch

The Modine 5H0680740000 Limit Switch is a critical OEM replacement part designed for high-limit temperature protection in Modine unit heaters and HVAC systems. As a 100-140F AUTO limit switch, this component is engineered to automatically open its contacts when the discharge air or heat exchanger temperature reaches 140°F, preventing equipment overheating. Once the temperature cools to the 100°F differential setpoint, the automatic reset limit switch re-engages, allowing the system to resume normal operation. This specific model serves as the direct commercial HVAC limit switch replacement for the legacy part number 5H68074. Field-tested for durability, the 5H0680740000 is compatible with a wide range of Modine DFG and PA series units, including popular models like the DFG75, DFG200, and PA250A. Its precision thermal sensing ensures consistent performance and system safety in demanding industrial and commercial heating applications.

• Direct OEM Compatibility: Engineered as the official replacement for legacy part number 5H68074, ensuring a drop-in fit for Modine unit heaters.
• Safety-First Operation: Effectively prevents heat exchanger damage by cutting power when temperatures exceed the 140°F high-limit threshold.
• Automatic Reset: Eliminates manual intervention requirements by resetting at 100°F, reducing maintenance downtime for contractors.
• Broad Application Range: Compatible with DFG75 through DFG400 units and PA series models, making it a versatile truck-stock item.

• What Modine models are compatible with this limit switch? It is designed for use in DFG series (75-400), PA105, PA130, and PA250A unit heaters.
• Does this switch require a manual reset? No, this is an automatic reset switch that resets once the temperature drops to 100°F.
• Is the 5H0680740000 its own part or an upgrade? This is the current manufacturer-specified replacement for the older 5H68074 model.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.