MARS 43331 Pressure Switch 320819-301 Robust SPDT Logic: The Single-Pole

Robust SPDT Logic: The Single-Pole Double-Throw configuration enables both alarm signaling and compressor cut-out from a single device

While the valve can function in various positions

Complete Assembly: Shipped with a matched 7

Manual Reset Safety: Prevents automatic recycling in an overheat condition

MARS 43331 Pressure Switch 320819-301 Robust SPDT Logic: The Single-PoleThe MARS 43331 Pressure Switch is a professional grade high pressure cutout designed for heavy duty HVACR applications. Engineered for precision, this SPST normally closed control features a fixed setpoint that triggers an open on pressure rise at 400 PSI and provides an automatic reset when system pressure drops to 300 PSI. This encapsulated pressure control is built to withstand harsh environments, utilizing a hermetically sealed sensor to ensure