LF12
LF12 – Three-Phase Pressure Switch
1~35bar
| Operating Pressure Range | Differential | Factory Setting | Electrical Rating | Contact Arrangement | Connection |
| 1-6bar | 0.7-2bar | 2-3bar | Single phase 120VAC/10A; 230VAC/10A; Three phase 120VAC/10A ; 230VAC/10A; 400VAC/7.5A; 400VAC/11A; 500VAC/6A; 500VAC/9A; 690VAC/4.5A; 690VAC/6.5A | N/C | G1/2; NPT1/2 or R1/2 Female |
| 3-11bar | 1.5-3.5bar | 6-8bar | |||
| 6-16bar | 2-7bar | 9-12bar | |||
| 5-25bar | 3-8bar | 16-20bar | |||
| 12-35bar | 3-8bar | 25-30bar |
LF12 is three phase pressure switch, used for air compressors and water pumps to regulate pressure between two preset values. It is available with an unloader valve, which prevents the compressor from starting under load, and an On-Off knob for manual cut off the compressor or pump.
A four-port manifold style is available, which makes easy mounting of other parts within the air compressor, like valve and gauge.
LF12 is available with a thermal relay for overload protection. The relay will cut off the motor power timely to prevent the motor from burning when the motor is overloaded.