MODINE High Limit Switch: Open on Rise, SPST, 180°F Closing, 220°F Opening
SKU 3G-OTH-67528
Need installation or engineering help?
Ask a question
Frequently Asked Questions
What is a MODINE high limit switch used for?
A MODINE high limit switch is a safety device used in HVAC and industrial heating systems. It monitors plenum temperature and opens the circuit at 220°F to prevent overheating, protecting equipment and personnel. It closes at 180°F for normal operation.
What are the specifications of the MODINE 3H0400780003 high limit switch?
The MODINE 3H0400780003 is a SPST high limit switch that opens on temperature rise. It opens at 220°F and closes at 180°F, rated for 24 VDC. It is a plenum limit control used in MODINE heating equipment.
Where to buy a MODINE high limit switch worldwide?
You can source the MODINE 3H0400780003 high limit switch through 3G Electric, a global industrial distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time.
How to install a MODINE high limit switch?
To install a MODINE high limit switch, first disconnect power. Mount the switch in the plenum or air stream, ensuring proper orientation. Connect the SPST leads to the 24 VDC control circuit. Verify the opening and closing temperatures match the system requirements before re-energizing.
Used in
Common applications for MODINEMODINE Products
3G Electric supplies MODINE plenum limit controls. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
