5 Cv rating ensures maximum throughput for large-scale liquid and vapor lines

Always inspect your existing housing for cracks or corrosion before swapping the motor

Dual-Function Management: Handles both high-level and low-level sensing points within a single 120V AC level control module

The NEMA 4X enclosure offers superior protection against water and corrosion

Lennox 30M03 Limit Switch 322838-753 5 Cv rating ensures maximumThe Lennox 30M03 Limit Switch is a critical safety component designed for precise thermal regulation within residential and commercial HVAC furnaces. This fixed temperature limit control is engineered with a specified range of 140 170F, ensuring the system shuts down if heat exchanger temperatures exceed safe operating parameters. As an OEM Lennox replacement part, this switch features an automatic reset mechanism, transitioning back to a closed state