industrial-grade plastic

Its robust construction is designed for high-cycle industrial environments

With a 35 microfarad rating and a 440Vac capacity

this fitting features an overall length of 1

Lennox 21L89 Limit Switch industrial-grade plasticThe Lennox 21L89 Limit Switch is a critical safety component designed for precise thermal regulation in Lennox HVAC systems. This auto limit switch features a 3 inch insert and is engineered to open the electrical circuit if the heat exchanger temperatures reach the 210F to 240F range. As a direct OEM replacement part, the 21L89 is identical to the 21L8901, ensuring a drop in fit for contractors maintaining residential furnaces and air handlers. This