Williams P321942 Limit Switch 321042-401 Its EER rating of up

Its EER rating of up to 3

Reliable Sealing: Nitrile (NBR) elastomers provide excellent compatibility with water and air at various temperatures

120V or 24V controllers like the CAC-120 or CAC-24

1% accuracy to minimize data errors in industrial automation systems

though technical documentation indicates it is designed for compatibility with specific OEM fan rotations found in 21 frame configurations

Williams P321942 Limit Switch 321042-401 Its EER rating of upThe Williams P321942 Limit Switch is a critical OEM safety component engineered for Williams Forsaire Direct Vent Wall Furnaces and 6007 Series counterflow units. This temperature sensitive switch, classified as an L210 40F limit switch, monitors plenum air temperature to prevent heat exchanger damage and hazardous overheating conditions. As a technical HVAC replacement part, it is designed with a normally closed contact configuration that opens the