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and resistive heating applications
Smith parts ecosystem
Industrial Durability: Built to withstand the high-vibration environment typical of rooftop units and large-scale HVAC mechanical controls
The "M" in RIBM2401B denotes it is a modular track-mount version without a separate external nipple
It utilizes the same 2-pin quick-connect molex and resistance curve
Lennox 22J51 Relay-Sequencer and resistive heating applicationsThe Lennox 22J51 Relay Sequencer is a critical 24V control component designed to manage the staged activation of heating elements and blower motors in electric furnaces and air handlers. For technicians performing field repairs, the 22J51 serves as the direct replacement for R76726700, ensuring seamless integration with existing Lennox and Allied Air equipment. This HVAC sequencer utilizes factory calibrated time delays to prevent electrical overloads