Pressure Switch P77AAW by Johnson Controls is designed for a wide range of applications in the fields of refrigeration, air conditioning, and heating. This model is suitable for use with various types of non-corrosive refrigerants, including R22, R134A, R404A, and is engineered to handle both low and high-pressure conditions. With its robust construction and ability to operate under high pressures, the switch is ideal for industrial applications requiring reliable pressure control.

Key Features:

• Pressure range: 3 - 30 bar
• Pressure differential: 3.5 - 12 bar
• Maximum bellows pressure: 33 bar
• Protection: IP54, allowing for use in both indoor and outdoor environments
• Material: Phosphor bronze bellows and brass pressure connection for enhanced durability.
• Installation and maintenance: Ample space for wire connections facilitates assembly and maintenance.
• Function: High or low-pressure limit (auto reset)
• Contact function: Standardly supplied SPDT contacts for flexibility in connection.

The package includes a locking plate and screws for locking, range, and differential adjustment.

The P77AAW model is designed to provide a high level of reliability and efficiency in demanding industrial conditions, making it a dependable choice for pressure control in a wide range of applications.