Packard PLP2550 Low Pressure Control Switch Open 25 PSI Close 50 PSI

The Packard PLP2550 is a refrigerant low pressure control designed for use in HVAC and refrigeration systems. It opens the circuit at 25 PSI and closes at 50 PSI, with a ±5 PSI tolerance, providing reliable automatic reset protection against low-side refrigerant pressure loss.

This encapsulated, non-adjustable pressure switch features single pole–single throw (SPST) switching action and mounts directly to the refrigerant circuit via a ¼" female SAE flare connection. It is compatible with HFC, HCFC, and CFC refrigerant systems, making it a versatile solution for a wide range of residential and commercial HVAC/R applications.

Key Features:

• Opens at 25 PSI / Closes at 50 PSI with ±5 PSI tolerance
• Automatic reset operation
• Single pole–single throw (SPST) switching
• Non-adjustable, tamper-proof encapsulated design
• Direct mount with ¼" female SAE flare refrigerant port
• Compatible with HFC, HCFC, and CFC refrigerants
• 18" leads included
• Rated 24V, 125VA / 110V, 375VA / 240V, 375VA (6 RLA, 36 LRA)
• Rated service life: 100,000 cycles at rated load

The PLP2550 is a direct-mount low pressure control built to protect compressors and refrigeration equipment from operating under dangerously low refrigerant pressure conditions. Its robust encapsulated construction ensures long-term reliability in demanding HVAC/R environments.