High pressure pressure switch ALCO PS1-R5A, 4350700, 6 – 31 bar, manually reset, differential pressure 3 bar fixed, 1/4" SAE

The ALCO PS1-R5A is a professional high-pressure pressure switch with manual reset , specifically designed for the protection of refrigeration systems , heat pumps , and industrial cooling systems . In the event of overpressure, the device reliably interrupts the circuit; a targeted, manual reset is required to restart. This function ensures maximum operational reliability in critical applications.

With a switching range of 6 – 31 bar and a fixed differential pressure of 3 bar, the PS1-R5A offers constant switching performance for maximum control and system stability.

Thanks to the 1/4" SAE flare connection, the switch can be quickly integrated into existing systems without soldering – ideal for retrofits and new installations . The robust, compact design ensures a long service life – even under demanding conditions such as in commercial or industrial environments.

Product advantages at a glance:

• Safety shutdown at high pressure (up to 31 bar)

• Fixed differential pressure (3 bar) for stable switching points

• Manual reset – prevents accidental reactivation

• Flare connection 1/4" SAE – easy installation without soldering

• Robust design for harsh operating environments

• Ideal for refrigeration systems , heat pumps , industrial air conditioning

🔧 Technical data:

• Model : ALCO PS1-R5A

• Article number : 4350700

• Pressure range : 6 – 31 bar

• Differential pressure : 3 bar (fixed)

• Function : manually reset

• Signal type : Single contact (Single Signal)

• Connection : 1/4" SAE flare

• Applications : Commercial refrigeration systems, industrial air conditioning, heat pumps