Air Compressor Pressure Switch 125 to 155 PSI Auto On Off Unloader EV WSi 90 Degree One Quarter Inch NPT Four Port Replacement 12AC2FAER 0340184 Compatible

125/155 PSI Pressure Switch for Air Compressors EV WSi
✔️ 4-port 1/4 NPT, EV WSi unloader, 125/155 PSI range

This pressure switch is a direct replacement for many air compressors. It controls auto on/off operation with a 125/155 PSI setting and uses a 1/4" NPT, 4-port manifold. Part numbers 12AC2FAER / 034-0184 apply. Color: Black. No strain relief.

✅ Part Number: 12AC2FAER / 034-0184
✅ Pressure settings: 125 PSI / 155 PSI
✅ Manifold: 1/4" NPT, 4-port
✅ Auto/Off: Yes; Unloader: EV*WSi (90° QC)

💡 What is a pressure switch for air compressors and how does the EV WSi unloader improve performance?

It helps regulate cut-in and cut-out pressures and makes restarts smoother.

• auto on/off control at 125/155 PSI
• EV WSi unloader reduces startup load
• fits 1/4" NPT four-port manifolds
• used in home and light industrial air systems

✝️