Air Compressor Pressure Switch with 4 Ports
Available in stock
| Quantity | Price per unit | You save |
|---|---|---|
| 1–2 pcs | 27,99 lei | — |
| 3–4 pcs | 26,59 lei | 5% (−1,40 lei/unit) |
| 5–10 pcs | 25,19 lei | 10% (−2,80 lei/unit) |
| 11+ pcs | 23,79 lei | 15% (−4,20 lei/unit) |
4-port compressor pressure switch for precise control
The 4-port air compressor pressure switch ensures automatic start and stop control of the motor based on tank pressure, eliminating the need for constant manual supervision. Suitable for both domestic compressors and light industrial applications, this device integrates easily into any existing pneumatic system. The wide adjustment range (2–12 bar) and robust metal construction make it a reliable long-term solution.
What you get with this product
- Automatic compressor start and stop — no more need to manually monitor tank pressure
- 4 independent NO/NC outputs — you can connect multiple circuits or auxiliary equipment simultaneously without additional parts
- Flexible adjustment between 2 and 12 bar — compatible with most single-phase compressors on the market
- 16A at 230V AC electrical contacts — supports standard compressor motors without risk of contact overload
- 1/4" BSP external thread — direct mounting on standard tank fittings, without special adapters
- Compact housing with emergency stop button — quick power cut-off in any situation
How it works and how to install it
The pressure switch is mounted on the threaded port of the compressor tank (1/4" BSP) and electrically connected between the 230V AC source and the compressor motor. The internal mechanism detects the air pressure in the tank and automatically closes or opens the electrical circuit, depending on the pressure thresholds adjusted with the setting screws. Installation does not require special tools — a wrench and a screwdriver are sufficient for complete assembly in approximately 20 minutes.
Frequently Asked Questions
Is it compatible with any single-phase air compressor?
Yes, the pressure switch works with single-phase 230V AC compressors that use standard 1/4" BSP threaded connections and do not exceed 16A starting current per contact.
How do I adjust the start and stop pressure?
The minimum (start) and maximum (stop) pressure are adjusted separately via two accessible adjustment screws after removing the cover — no electrical reconfiguration is required.
What do the 4 outputs mean — can they power 4 tools simultaneously?
The 4 outputs are independent pneumatic or electrical connections (NO/NC combinations) that allow control of multiple circuits, but the power capacity depends on the system configuration and does not necessarily mean 4 pneumatic tools in parallel.
Technical specifications
| SKU | Q-3B025 |
| Pressure adjustment range | 2 – 12 bar (30 – 175 PSI) |
| Number of outputs | 4 independent contacts (NO/NC combinations) |
| Connection thread type | 1/4" BSP (external thread) |
| Maximum current per contact | 16A |
| Operating voltage | 230V AC, 50/60 Hz |
| Product type | Air compressor pressure switch |
| Housing construction | Metal body with plastic cover |
| Emergency stop button | Yes (resettable red button) |
Warranty and support
The product benefits from a 2-year legal warranty in accordance with current Romanian legislation. We accept returns within 30 days of delivery, without requiring additional justification. Delivery is made by express courier, with shipping confirmation and the possibility to track the package.
Couldn't load pickup availability
