The unit is hardwired and compatible with standard 24VAC systems

Whether you are performing a furnace relay replacement or troubleshooting a fan control board failure

Operating on a 0

Most failures result from a short circuit in the low-voltage wiring

Rugged Stainless Steel Construction: The 300 Series stainless steel housing is designed for longevity in high-heat and corrosive atmospheres

Williams P500118 Limit Switch 324846-701 The unit is hardwired andThe Williams P500118 Limit Switch is a critical OEM high limit safety control engineered for precision temperature regulation in Williams Comfort Products heating systems. Rated at 300F, this auto reset limit switch acts as a primary fail safe, monitoring heat exchanger temperatures to prevent thermal overage and potential component failure. In a professional HVAC furnace repair context, utilizing an authentic Williams furnace part ensures the system