ALCO PS3-B6S Adjustable Pressure Switch, 21.5 bar 312 psig, SPDT, High-Pressure, Refrigeration/HVAC, PCN 0715589

ALCO PS3-AF1 HNS Pressure Switch - Adjustable High Pressure SPDT, Refrigeration/HVAC (PCN 0713405)

The ALCO PS3-AF1 HNS pressure switch, identified by PCN 0713405, is a meticulously engineered and highly reliable control device designed for critical high-pressure regulation and safety applications within diverse refrigeration and HVAC systems. This model features an adjustable pressure setting range of 2.0/3.5 bar (29/51 psig), coupled with a robust test pressure capability of 25 bar / 360 psig (“Prüfdr./testi preß.”), making it an ideal component for safeguarding compressors and other vital equipment from damage due to excessive system pressures. Its Single Pole Double Throw (SPDT) contact configuration provides versatile electrical control, enabling the precise activation or deactivation of associated system components, such as compressor motor cut-outs or alarm systems, when predefined high-pressure limits are exceeded. With impressive electrical ratings of 6 FLA, 36 LRA at 120/240 VAC, and 6(6) A at 230V~ (AC1), the PS3-AF1 HNS offers dependable performance in demanding operational environments. Manufactured in the Czech Republic, this switch meets stringent international quality and safety standards (CE and cURus listed), assuring accuracy, durability, and consistent operation for extended periods, thereby contributing significantly to system efficiency, operational safety, and overall equipment longevity.

Key Features:

• Part Number (PCN): 0713405
• Model Series: PS3
• Configuration: AF1 HNS (Specific internal configuration with High-Normal Sensitivity)
• Type: Adjustable High Pressure Switch
• Test/Operating Pressure: Up to 25 bar / 360 psig
• Adjustable Range: 2.0/3.5 bar / 29/51 psig (Refers to the adjustable differential or setpoint range)
• Contact Type: SPDT (Single Pole, Double Throw)
• Electrical Ratings: 6 FLA, 36 LRA, 120/240 VAC; 6(6) A @ 230V~ (AC1)
• Application: Essential for high-side pressure control, protection, and safety cut-out in refrigeration, air conditioning, and heat pump systems.
• Function: Guards against excessive system pressures by activating or deactivating electrical circuits.
• Reliability: Designed for high precision, durability, and accurate pressure sensing in critical safety applications.
• Certifications: CE, cURus
• Manufacturing Origin: Made in Czech Republic

Manufacturer Information:

ALCO (An Emerson Brand) ALCO is a globally recognized brand within Emerson's distinguished Commercial & Residential Solutions portfolio, celebrated for its expertise in developing and manufacturing critical components for refrigeration, air conditioning, and comprehensive HVAC-R systems. With a heritage spanning many decades, ALCO has established itself as a leading innovator and trusted supplier of high-quality flow controls, meticulously engineered mechanical and electronic expansion valves, and a diverse range of essential control components, including advanced pressure switches and precise thermostats. ALCO products are meticulously designed for superior precision, unwavering reliability, and optimal energy efficiency. They are instrumental in achieving peak system performance and ensuring crucial safety across a broad spectrum of commercial and industrial refrigeration applications, as well as residential and commercial air conditioning sectors worldwide. ALCO components are fundamental to the effective operation and extended lifespan of intricate fluid systems.