Lennox 25J30 Limit Switch This genuine OEM part is

This genuine OEM part is vital for maintaining equipment integrity during seasonal maintenance or burner manifold overhauls

This step-down transformer converts a 120V primary input to a stable 24V secondary output

Universal Versatility: Standard 3/4" snap disc mounting holes and included terminal adapters allow for rapid installation across multiple brands

Can the ZG-DC2 be used in high-pressure VAV systems

Lennox 25J30 Limit Switch This genuine OEM part isThe Lennox 25J30 is a heavy duty, disc style OEM furnace limit switch engineered for high precision thermal monitoring in residential and light commercial air handlers. This SPST normally closed control is a direct drop in replacement for the Lennox 25J3001 and is critical for maintaining safe plenum temperatures. Designed with an automatic reset function, the switch triggers a circuit break when temperatures reach the 155F cutout point, effectively