Supco SHP400280 High Pressure Switch 400 PSI Open 280 PSI Close

The Supco SHP400280 is a high-quality automatic reset high pressure switch designed for HVAC and commercial refrigeration applications. This encapsulated, non-adjustable SPST switch opens on pressure rise and is engineered for reliable performance with HFC, HCFC, and CFC refrigerants.

Key Features:

• Opens at 400 PSI, closes at 280 PSI for precise pressure control
• Automatic reset functionality for convenient operation
• 1/4 inch SAE 45° female flare fitting with valve core depressor
• SPST (single pole, single throw) configuration
• Rated for 24/120/240 VAC at 50/60 Hz
• Exceptional durability with 100,000 cycle life at rated load
• Compact, lightweight design ideal for direct mounting
• Hermetically sealed stainless steel sensor for excellent set point repeatability

This pressure switch is perfect for use as a safety control to protect refrigeration systems from excessive high-side pressure. It can also function as an operating control in applications such as low ambient condenser fan control. The automatic reset design eliminates the need for manual intervention, ensuring continuous system protection and reliable operation.