High-Pressure SPST Pressure Switch, 400 PSI Open / 300 PSI Close

This high-pressure SPST pressure switch is for HVAC technicians and service professionals who need to control condenser fan cycling based on system pressure. It opens on a pressure rise at 400 PSI and closes at 300 PSI to support pressure-responsive operation.

The switch has a snap-acting, hermetically sealed stainless steel sensor and a 1/4-inch SAE female flare fitting with a valve core depressor for direct mounting. It operates across a 0 to 650 PSI pressure range, with a 5,000 PSI burst pressure. Rated for 100,000 cycles, it supports 24, 120, or 240 VAC at 50/60 Hz, with 6 RLA and 36 LRA ratings. Ambient operating temperature is 20°F to 176°F, and fluid temperature range is 60°F to 250°F.

Key Features:

• 400/300 PSI switching: Opens at 400 PSI on pressure rise and closes at 300 PSI for defined condenser fan cycling control.
• SPST snap action: Provides responsive switching as pressure changes.
• Sealed stainless steel sensor: Hermetically sealed sensor construction supports stable set-point performance.
• 1/4-inch SAE flare connection: Includes a female flare fitting and valve core depressor for direct installation.
• 0 to 650 PSI range: Supports use within the stated pressure operating range.
• 100,000-cycle rating: Designed for repeated switching service.

Choose this compact, direct-mount pressure switch when your HVAC application requires an SPST control that opens on pressure rise at 400 PSI and recloses at 300 PSI.

No additional information available.