
Modine 5H0749760002 Limit Switch
The Modine 5H0749760002 is a critical L165F manual reset limit switch engineered for high-demand industrial and commercial HVACR applications. As an authentic HVAC OEM replacement part, this high-limit safety control is designed to monitor temperatures within the heat exchanger and provide a positive break in the electrical circuit if conditions exceed the 165°F threshold. Its double-break contact design enhances circuit reliability and reduces arcing, ensuring the safety of units like the Modine DFG400, DFG200, and DFG225. This switch features a manual reset mechanism, requiring a technician to physically inspect the system before resuming operation—a vital safeguard against repeated overheating cycles that could lead to heat exchanger fatigue or failure.
Built with a rugged housing for protection against harsh mechanical room environments, the 5H0749760002 offers versatile side or bottom mount configurations to simplify installation for field contractors. This high-limit switch is a direct replacement for the legacy part number 5H74976-2, maintaining the exact specifications required for precise position sensing and process control. When troubleshooting a 3-flash or 6-flash diagnostic code on Modine units, verifying the continuity of this overheat limit control is a standard protocol for restoring safe system performance.
Key Benefits for Technicians:- Precise Thermal Protection: Set to trip at exactly 165°F (L165F) to prevent catastrophic equipment damage.
- Durable Double-Break Contacts: Increased safety margin with reduced arcing during high-load switching events.
- OEM Compatibility: Guaranteed fit for popular Modine DFG and Hot Dawg series units without field modifications.
- Rugged Construction: Designed to withstand the vibration and temperature fluctuations common in industrial HVAC cabinets.
- Manual Reset Safety: Prevents automatic restart of a potentially hazardous system, ensuring thorough technician diagnostics.
- Can I replace this manual reset switch with an auto-reset version? No. Manual reset switches are integrated safety components that require a technician to identify the root cause of an overheat event before the system can safely resume operation.
- How do I test the 5H0749760002 for failure? Check for continuity across the terminals when the switch is cool. If the switch is open (no continuity) and the reset button does not restore it, the internal element has likely failed.
- What units does this limit switch fit? This part is specifically used in Modine DFG series models (including 200, 225, and 400) and various industrial unit heaters requiring a 165°F limit.
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.
Original: $98.19
-65%$98.19
$34.37Modine 5H0749760002 Limit Switch
The Modine 5H0749760002 is a critical L165F manual reset limit switch engineered for high-demand industrial and commercial HVACR applications. As an authentic HVAC OEM replacement part, this high-limit safety control is designed to monitor temperatures within the heat exchanger and provide a positive break in the electrical circuit if conditions exceed the 165°F threshold. Its double-break contact design enhances circuit reliability and reduces arcing, ensuring the safety of units like the Modine DFG400, DFG200, and DFG225. This switch features a manual reset mechanism, requiring a technician to physically inspect the system before resuming operation—a vital safeguard against repeated overheating cycles that could lead to heat exchanger fatigue or failure.
Built with a rugged housing for protection against harsh mechanical room environments, the 5H0749760002 offers versatile side or bottom mount configurations to simplify installation for field contractors. This high-limit switch is a direct replacement for the legacy part number 5H74976-2, maintaining the exact specifications required for precise position sensing and process control. When troubleshooting a 3-flash or 6-flash diagnostic code on Modine units, verifying the continuity of this overheat limit control is a standard protocol for restoring safe system performance.
Key Benefits for Technicians:- Precise Thermal Protection: Set to trip at exactly 165°F (L165F) to prevent catastrophic equipment damage.
- Durable Double-Break Contacts: Increased safety margin with reduced arcing during high-load switching events.
- OEM Compatibility: Guaranteed fit for popular Modine DFG and Hot Dawg series units without field modifications.
- Rugged Construction: Designed to withstand the vibration and temperature fluctuations common in industrial HVAC cabinets.
- Manual Reset Safety: Prevents automatic restart of a potentially hazardous system, ensuring thorough technician diagnostics.
- Can I replace this manual reset switch with an auto-reset version? No. Manual reset switches are integrated safety components that require a technician to identify the root cause of an overheat event before the system can safely resume operation.
- How do I test the 5H0749760002 for failure? Check for continuity across the terminals when the switch is cool. If the switch is open (no continuity) and the reset button does not restore it, the internal element has likely failed.
- What units does this limit switch fit? This part is specifically used in Modine DFG series models (including 200, 225, and 400) and various industrial unit heaters requiring a 165°F limit.
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.
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Description
The Modine 5H0749760002 is a critical L165F manual reset limit switch engineered for high-demand industrial and commercial HVACR applications. As an authentic HVAC OEM replacement part, this high-limit safety control is designed to monitor temperatures within the heat exchanger and provide a positive break in the electrical circuit if conditions exceed the 165°F threshold. Its double-break contact design enhances circuit reliability and reduces arcing, ensuring the safety of units like the Modine DFG400, DFG200, and DFG225. This switch features a manual reset mechanism, requiring a technician to physically inspect the system before resuming operation—a vital safeguard against repeated overheating cycles that could lead to heat exchanger fatigue or failure.
Built with a rugged housing for protection against harsh mechanical room environments, the 5H0749760002 offers versatile side or bottom mount configurations to simplify installation for field contractors. This high-limit switch is a direct replacement for the legacy part number 5H74976-2, maintaining the exact specifications required for precise position sensing and process control. When troubleshooting a 3-flash or 6-flash diagnostic code on Modine units, verifying the continuity of this overheat limit control is a standard protocol for restoring safe system performance.
Key Benefits for Technicians:- Precise Thermal Protection: Set to trip at exactly 165°F (L165F) to prevent catastrophic equipment damage.
- Durable Double-Break Contacts: Increased safety margin with reduced arcing during high-load switching events.
- OEM Compatibility: Guaranteed fit for popular Modine DFG and Hot Dawg series units without field modifications.
- Rugged Construction: Designed to withstand the vibration and temperature fluctuations common in industrial HVAC cabinets.
- Manual Reset Safety: Prevents automatic restart of a potentially hazardous system, ensuring thorough technician diagnostics.
- Can I replace this manual reset switch with an auto-reset version? No. Manual reset switches are integrated safety components that require a technician to identify the root cause of an overheat event before the system can safely resume operation.
- How do I test the 5H0749760002 for failure? Check for continuity across the terminals when the switch is cool. If the switch is open (no continuity) and the reset button does not restore it, the internal element has likely failed.
- What units does this limit switch fit? This part is specifically used in Modine DFG series models (including 200, 225, and 400) and various industrial unit heaters requiring a 165°F limit.
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.












