Home Vica Work 4-way single-phase pressure switch for compressors up to 2 HP
4-way single-phase pressure switch for compressors up to 2 HP
19,60 €
19,60 €
20,00 €
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4-way single-phase pressure switch for compressors up to 2 HP The pressure switch is the brain of the compressor: it starts and stops the motor according to the tank pressure. If yours doesn't cut out, won't start or leaks air through the valve, this 4-way single-phase pressure switch restores automatic, safe operation to your compressor.
It is a spare part for single-phase compressors up to 2 HP and 8 bar , with a 4-way outlet and an unloader valve that releases the pump so the motor starts without strain. There are two models : compare yours with the photos to choose the one that matches.
A pressure switch in good condition protects the motor and tank: it cuts out at the correct pressure, prevents forced starts and extends the life of the whole unit.
✅ Key benefits
Automatic start and stop: controls the motor according to pressure.
4-way: several air connections in a single body.
Unloader valve: the motor starts unloaded and without strain.
Up to 2 HP and 8 bar: for single-phase workshop and DIY compressors.
Two models: choose the one that matches yours.
🏗️ What it's for
Replacing a faulty pressure switch.
Compressors that won't start or won't cut out.
Fixing leaks from the unloader valve.
Maintenance of single-phase compressors up to 2 HP.
📋 Technical specifications
Voltage: single-phase
Power: up to 2 HP
Maximum pressure: 8 bar
Ways: 4, with unloader valve
Models: 871/1 and 871/2
💡 Vetonek tip: disconnect the compressor and drain the tank before replacing it; use PTFE tape on the thread and tighten without straining the pressure switch body. The electrical connection must be made by a qualified person.
Frequently asked questions
Which of the two models do I need?
Compare the shape, position of the ports and thread with your current pressure switch; if in doubt, send us a photo.
Is it suitable for 3 HP compressors?
No, it is designed for single-phase motors up to 2 HP.
What is the maximum pressure?
Up to 8 bar.
What is the unloader valve for?
It releases the air from the pump when it stops so the motor can start again without strain.
Is it suitable for three-phase compressors?
No, it is single-phase; for three-phase units there are 10 bar three-phase pressure switches.
Frequently Asked Questions
Which of the two models do I need?
Compare the shape, position of the ports and thread with your current pressure switch; if in doubt, send us a photo.
Is it suitable for 3 HP compressors?
No, it is designed for single-phase motors up to 2 HP.
What is the maximum pressure?
What is the unloader valve for?
It releases the air from the pump when it stops so the motor can start again without strain.
Is it suitable for three-phase compressors?
No, it is single-phase; for three-phase units there are 10 bar three-phase pressure switches.
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