Low-pressure pressure switch ALCO PS1-W3U, 4713437, -0.5 – 7 bar, automatic, differential pressure 0.5 – 5 bar, solder connection 6 mm

The ALCO PS1-W3U is a robust and precise low-pressure pressure switch for professional use in refrigeration systems, heat pumps, and HVAC systems . Designed for reliable pressure control in the low-pressure range , it ensures maximum operational reliability in sensitive refrigeration circuits.

With a switching range of -0.5 to 7 bar and an adjustable differential pressure of 0.5 to 5 bar, the switching point can be precisely adjusted to system requirements. The automatic reset ensures maintenance-free continuous operation – without manual resetting after pressure normalization.

Thanks to the 6 mm solder connection (ODF), a solid, vibration-proof and leak-free integration into copper pipes is possible – ideal for long-lasting system installations in commercial refrigeration.

ALCO's robust construction and proven quality make this pressure switch a reliable choice for demanding environments.

✅ Product advantages at a glance:

• Wide switching range: -0.5 to 7 bar – ideal for low-pressure applications

• Adjustable differential pressure: 0.5 – 5 bar – adaptable to system requirements

• Automatic reset: maintenance-free continuous operation

• 6 mm solder connection: stable, secure copper connection – ideal for permanently installed systems

• Use in HVAC, commercial refrigeration and heat pumps

• Single signal contact: easy integration into control technology

🔧 Technical data:

• Model: PS1-W3U

• Article number: 4713437

• Pressure range: –0.5 to 7 bar

• Differential pressure: 0.5 – 5 bar (adjustable)

• Function: automatically reset

• Connection: 6 mm solder connection (ODF)

• Signal type: Single contact (Single Signal)

• Type: Low pressure pressure switch

• Areas of application: Commercial refrigeration systems, heat pumps, air conditioning systems, HVAC technology