Lennox 73W18 Limit Switch

120-150F AUTO Limit Switch

Lennox 73W18 Limit Switch (Model 102857-05) – 120-150°F Auto Limit Control

The Lennox 73W18 Limit Switch (Model 102857-05) is a high-quality auto limit control switch designed for reliable temperature regulation in heating systems. Engineered by Lennox, a trusted name in HVAC technology, this switch ensures safe and efficient operation by activating at 150°F and automatically resetting at 120°F.

Key Features:

• Brand: Lennox

• Catalog Number: 73W18

• Model/Part Number: 102857-05

• Type: Limit Control (STILT)

• Actuation Temperature: 150°F

• Reset Temperature: 120°F

• Sleeve Color: Purple

• Orientation: Left

• Overall Length: 5 inches (OAL)

• UPC: 66255141842

Product Overview:

The Lennox 73W18 (102857-05) Limit Control Switch is built for dependable temperature monitoring and automatic reset functionality in residential and commercial HVAC systems. Its STILT design offers precise control and easy installation. Perfect for maintaining system safety and preventing overheating, this limit switch helps extend the lifespan of your heating equipment.

Applications:

Ideal for use in Lennox furnaces and heating units, as well as compatible HVAC systems requiring a 120–150°F auto limit switch.

Upgrade your HVAC system with the Lennox 73W18 Limit Switch for optimal performance, safety, and reliability.