LEFOO Air Compressor Automatic Pressure Switch 110V/240V 55-175Psi Manual Control Handle & Emergency Cutoff 1- 4 Port LF10

1. Precise Cut-In/Cut-Out Control for Stable Air Delivery

This pressure switch automatically keeps your compressor tank within a tight, adjustable pressure band, supporting up to 200 psi. The result is a stable air supply that prevents tool stutter, ensures consistent spray patterns, and protects your downstream equipment from pressure fluctuations. Ideal for small to medium-sized industrial compressors where reliable pressure is non-negotiable.

2. Unloaded Start: The Key to Extending Motor Life

Unlike standard switches that risk high-current, load-on starts, our model integrates a mechanical unloader valve. It vents the cylinder head pressure the moment the motor stops, guaranteeing a true no-load start every single cycle. This dramatically reduces inrush current, prevents motor overheating, and eliminates the number one cause of premature motor failure in systems with frequent start-stop demands.

3. Instant Manual Shut-Off for Safety and Maintenance

Select versions feature a large, integrated manual lever that allows operators to physically cut power to the compressor in seconds—no tools, no control panel needed. This provides an immediate safety response during emergency stops, routine maintenance, or troubleshooting, putting operational control directly at your fingertips on the production floor.

4. Ready-to-Install Porting That Saves Time and Eliminates Leaks

Choose between a compact single-port body or a multi-port manifold base with four threaded outlets. The 4-port manifold accepts your pressure gauge, relief valve, and unloading line directly, eliminating the need for extra tees, nipples, and adapters. Fewer connections mean faster assembly, a cleaner installation, and significantly reduced potential leak points right out of the box. (Specify NPT or BSPT thread when ordering.)

5. Built-to-Order Configurations for Your Exact Compressor Setup

We offer flexible assembly options—choose from models with or without the unloader valve and manual lever to perfectly match your design requirements and cost targets. Whether you are producing simple portable workshop inflators or large-scale industrial compressor packages, we can deliver a switch configured precisely to your specs, keeping your BOM clean and your supply chain simple.:

Item No.: LF10 / LF10A

Voltage: 110V/240V

Current: LF10: 12A, 20A, LF10A: 26A

Connect type: NC

Connector: NPT1/4 Female Thread; 1 or 4 ports ( the thread can be customed such as G1/4 or R1/4)

Pressure Rang: 0.5-1.25 MPA

Overload Capacity: 240V,26A; Can be started directly

Controller: There has two models of control.The first: it can be started and stopped automatically. Second,stop manually.

Application:Air compressor, air pump, piston compressor, oil-free air pump

Transformation:

1KG/CM²=14.2Psi=0.1Mpa=1Bar