Air Compressor Pressure Switch 26 Amps 120/240V - 120/155 PSI Control

In this review the Air Compressor Pressure Switch 26 Amps 120/240 Volts is assessed for hobbyists and light industrial users who need a reliable pressure control solution. The reviewer found the kit's single biggest advantage is its practical combination of a preset pressure switch, a 0-200 psi gauge and a safety relief valve, which together make it easy to install and get a compressor running safely at 120 psi cut-in and 155 psi cut-out. For anyone replacing a worn switch or adding a compact upgrade, this package simplifies the job without requiring extra parts.

Key Features

• Preset Control: The pressure switch is factory-set to turn the compressor on at 120 psi and off at 155 psi, which protects the motor from overload.
• High Load Capacity: With a maximum load current of 26 AMPS the switch handles most home and small workshop compressor motors reliably.
• Versatile Voltage: Rated for 120/240 VOLTS so it can be used with common single-phase compressor systems without rewiring changes.
• Included Gauge: The 0-200 psi pressure gauge with a 1/8' NPT lower mount gives a clear, wide-range readout for accurate pressure monitoring.
• 4-Port Manifold: The 1/4' NPT manifold provides multiple installation orientations and options for adding outlets, a relief valve or accessories.
• Safety Relief Valve: The included 1/4' male NPT relief valve adds a manual safety control to protect the system from overpressure situations.

Who It's For

This kit is well suited for DIYers, repair technicians and small shop owners replacing a worn pressure switch or assembling a compact compressor control assembly. It is especially useful where a simple preset on/off range of 120/155 PSI is acceptable and where the installer values the convenience of a bundled gauge and relief valve.

It is less appropriate for specialty compressors that require custom electronic control, very low or very high pressure ranges, or for systems that demand integrated digital monitoring. Professionals needing advanced automation or nonstandard pressure setpoints should look at dedicated controllers or custom solutions.

Pros & Cons

Pros

• Complete kit includes a pressure switch, a 0-200 psi gauge and a safety relief valve for straightforward installation.
• Factory preset 120 psi on and 155 psi off provides reliable protection against motor overload.
• 4-port 1/4' NPT manifold increases mounting flexibility and accessory options.
• 26 AMP maximum load suits most home and small workshop compressors.

Cons

• The pressure switch body is mainly plastic, which some users may consider less robust than all-metal alternatives.
• The preset range is fixed by default and while adjustable, those needing precise electronic setpoint control may prefer a different device.

Specifications

Brand	Relaxweex
Maximum load current	26 AMPS
Rated voltage	120/240 VOLTS
Operating pressure setting	120 psi (on) / 155 psi (off)
Manifold connection	1/4' NPT, 4 port
Pressure gauge	0-200 psi, 1/8' NPT lower mount
Relief valve inlet	1/4' male NPT

Our Verdict

The Relaxweex pressure switch kit is a practical, good-value option for homeowners and small shops needing a straightforward pressure control upgrade. It bundles a sturdy 0-200 psi gauge and a safety relief valve with a 26 AMP, 120/240V switch preset to 120/155 PSI, offering easy installation and flexible mounting via the 4-port manifold. Choose this kit when you want a complete, no-nonsense replacement that balances convenience and reliable protection.

Frequently Asked Questions

Can the pressure switch settings be changed?
Yes, the working range can be customized based on specific needs, although it ships preset to 120 psi on and 155 psi off.

What pipe thread sizes are included?
The kit uses a 1/4' NPT 4-port manifold and the pressure gauge is 1/8' NPT; the relief valve has a 1/4' male NPT inlet.

Is this suitable for 240V compressors?
Yes, the switch is rated for 120/240 VOLTS and supports common single-phase compressor installations.