Mechanical pressure and vacuum switch LF08V

vacuumfor hydrocarbonsfor air

Product overview
The LF08V is a compact vacuum pressure switch with automatic reset, designed to monitor negative pressure in vacuum systems. It is suitable for vacuum applications including electric vehicle vacuum systems and industrial vacuum controls.

Technical parameters
MODEL: LF08V
Pressure setting range (gauge): -0.09 MPa to 0 MPa
Operating pressure / Tolerance / Max. withstand pressure (gauge): for -0.09 ≤ p < 0 MPa — tolerance ±0.02 MPa; max withstand pressure 1.0 MPa
Pressure differential (switching): ≥ 0.025 MPa
Burst pressure (gauge): 34.5 MPa × 1 min (no damage, no leakage)
Operating temperature: Ambient -20 to 65 °C; Medium -20 to 65 °C
Electrical parameters: 24–50 VAC (0.02–3 A); 8–36 VDC (0.02–3 A)
Compatible media: Air, water, oil, lubricants, refrigerants and similar hydrocarbons
Service life: Mechanical ~100,000 cycles; Electrical ~30,000 cycles
Ingress protection: IP67
Conversion note: 1 bar = 14.5 psi; 1 MPa = 10 bar

Applications

• Vacuum systems for electric vehicles
• Industrial vacuum controls and automation
• Refrigeration and HVAC systems
• Laboratory and clean-room vacuum equipment
• Pneumatic systems requiring negative-pressure monitoring

Documents and drawings
Datasheet (PDF) and dimensional drawing available on request; contact supplier for CAD files and wiring diagrams.

Technical specifications

• Type: Compact vacuum pressure switch, automatic reset
• Model: LF08V
• Pressure range: -0.09 MPa to 0 MPa
• Switch differential: ≥ 0.025 MPa
• Tolerance: ±0.02 MPa (for -0.09 ≤ p < 0 MPa)
• Max. operational withstand pressure: 1.0 MPa
• Burst pressure: 34.5 MPa for 1 min (no damage/no leakage)
• Operating temperature: -20 °C to 65 °C (ambient and medium)
• Electrical ratings: 24–50 VAC (0.02–3 A); 8–36 VDC (0.02–3 A)
• Compatible media: air, water, oil, lubricants, refrigerants
• Mechanical life: approx. 100,000 cycles; Electrical life: approx. 30,000 cycles
• Protection: IP67