Lennox 30H65 Interlock Switch

The Lennox 30H65 Interlock Switch is a critical safety component designed for seamless panel integration in commercial and residential HVAC units. This OEM Door Interlock Switch, also identified by the catalog number 30H6501 or part LB-62329CA, provides a positive break in the electrical circuit when access panels are removed, effectively isolating line voltage to protect technicians during live-side maintenance. Engineered as a Panel Mount SPST Momentary On switch, it features a heavy-duty rating of 16 Amp at 125 Volts AC (or 10A at 250VAC), ensuring it can handle the inductive loads typically found in Lennox furnace blower compartments and air handlers.

This HVAC safety switch comes equipped with 14/10" lead wires for simplified field wiring and is a direct drop-in replacement for worn or pitted contacts. By utilizing the 30H65 replacement switch, contractors can restore factory-spec safety protocols, preventing the system from cycling while the blower door is disengaged. Its robust construction is specifically tailored to withstand the high-cycle demands of industrial and multi-stage heating systems.

• Direct OEM Compatibility: Functionally identical to the Lennox 30H6501, ensuring exact fit and pin-to-pin alignment without field modifications.
• High Current Capacity: Rated for 16A 125VAC, providing reliable switching for primary blowers and control transformers.
• Safety Compliance: Automates the power-cut process upon panel removal, meeting crucial OSHA and residential safety standards for electrical isolation.
• Simplified Installation: Features pre-stripped wire leads and a standard panel-mount housing for rapid swap-outs in the field.

Is the 30H65 interchangeable with the 30H6501?
Yes, these parts are identical. Lennox often uses these two numbers interchangeably for the same interlock switch assembly.

Will this switch work in G24 and 80MGF series furnaces?
Yes, this switch is a standard safety component for multiple Lennox furnace generations, including the 80MGF and G24 series, where panel-mount safety is required.

What does it mean that the switch is "Momentary On"?
In this HVAC application, it means the switch is normally open; closing the access panel physically depresses the plunger to complete the circuit. Removing the door releases the plunger, immediately breaking the circuit.

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.