Universal Signal Input: Supports 0-10 VDC modulation and mA signals for seamless compatibility with standard HVAC controllers

and the magnetic clutch mechanism protects the actuator motor during stall conditions

By utilizing a DPST relay configuration and 24Vac 40VA power supply

In high-demand residential and commercial applications

Nordyne 626403R Limit Switch 320788-703 Universal Signal Input: Supports 0-10The Nordyne 626403R is a high precision 140F CO Auto Limit Switch designed for critical safety monitoring in Nordyne, Intertherm, and Miller electric furnaces. As a veteran grade OEM furnace limit switch, this double pole (2 pole) component acts as a primary fail safe, monitoring discharge temperatures to prevent heat exchanger damage. This unit is the direct replacement for 626260 and also supersedes legacy part numbers 626403 and 6264030, ensuring a