ALCO PS3-A1S Pressure Switch, 1.7/3 bar (24.7/44 psig) Adjustable Differential, SPDT 3A 230VAC, Refrigeration/HVAC, PCN 0714544 (Emerson)

ALCO PS3-A1S Pressure Switch - 1.7/3 bar (24.7/44 psig) Adjustable Differential, SPDT (PCN 0714544)

The ALCO PS3-A1S pressure switch, identified by PCN 0714544, is a robust and versatile control component specifically engineered to provide precise pressure control in sophisticated refrigeration, air conditioning, and HVAC systems. This model is adept at managing pressure differentials, featuring an adjustable range of 1.7 to 3 bar (equivalent to 24.7 to 44 psig). This allows for accurate monitoring and control of pressure variations, making it ideal for applications such as oil pressure supervision, defrost control, or activating/deactivating system components based on specific pressure thresholds.

Equipped with a Single Pole Double Throw (SPDT) contact configuration, the PS3-A1S offers flexible electrical switching capabilities with a rating of 3A at 230VAC (AC15). This enables reliable activation or deactivation of associated system elements like compressor motors, condenser fans, or crucial alarm systems when detected pressures fall outside the predefined safe parameters. Designed for durability and consistent performance, the ALCO PS3-A1S ensures reliable operation across a broad range of environmental conditions, with an ambient temperature rating of -40°C to 70°C. Its meticulous engineering makes it an indispensable asset for optimizing system efficiency, ensuring operational stability, and preserving the longevity of vital equipment in a wide array of commercial and industrial applications. Made in the Czech Republic.

Key Features:

• Part Number (PCN): 0714544
• Model Series: PS3
• Configuration: A1S (Specific internal configuration)
• Type: Adjustable Pressure Switch
• Adjustable Differential Pressure: 1.7/3 bar (24.7/44 psig)
• Contact Type: SPDT (Single Pole, Double Throw)
• Electrical Rating: 3A, 230VAC (AC15)
• Maximum Operating Pressure (PS): 27 bar (390 psig)
• Proof Test Pressure (PT): 30 bar (435 psig)
• Ambient Temperature (TS): -40°C to 70°C
• Application: Primarily for differential pressure control, suited for oil pressure supervision, defrost control, and general system activation/deactivation in refrigeration, air conditioning, and heat pump systems.
• Function: Provides precise pressure regulation and reliable system control, responding to pressure changes to manage system operations.
• Manufacturing Origin: Czech Republic

Manufacturer Information:

ALCO (An Emerson Brand) ALCO is an internationally recognized and highly respected brand under Emerson's extensive Commercial & Residential Solutions division. It is globally acclaimed for its specialized expertise in the development and manufacture of critical components designed for sophisticated refrigeration, air conditioning, and comprehensive HVAC-R systems. With a venerable heritage that spans many decades, ALCO has cemented its position as a leading innovator and a profoundly trusted supplier. The brand offers an extensive portfolio comprising high-quality flow controls, meticulously engineered mechanical and electronic expansion valves, and a diverse range of essential control components, which include advanced pressure switches and highly precise thermostats. ALCO products are distinguished by their rigorous design for unparalleled precision, unwavering reliability, and optimal energy efficiency. They play a pivotal role in achieving peak system performance and ensuring crucial safety across a broad spectrum of commercial and industrial refrigeration applications, as well as in residential and commercial air conditioning sectors worldwide. ALCO components are fundamental to the effective operation, extended lifespan, and sustainable performance of complex fluid handling systems globally.