Diaphragm pressure switch LF708A

stainless steelsteelIP67

Product overview
The LF708A is a diaphragm-type pressure switch for industrial and automotive applications. It detects when system pressure reaches a set value and sends an electrical signal to trigger mechanical equipment or alarms. Maximum burst pressure is 600 bar; maximum recommended working pressure is 450 bar.

General parameters
Body material: Zinc-plated steel / stainless steel
Contact material: Silver‑cadmium alloy (gold plating optional)
Max voltage: 42 V DC (up to 100 VAC max)
Max current: 4 A
Operating temperature range: -40℃ to +100℃ (depends on diaphragm selection)
Mechanical life: 1×10^6 cycles
Electrical life: 1×10^5 cycles
Pollution degree: Normal
Protection levels: IP00 (terminals 1–2), IP67 (terminals 3–8), IP65 (terminal 9)
Upper cover: IP54 (terminals 1–2)
Side cover: IP55 (terminals 1–2)
Applicable standard: EN 60730-1
Max working pressure: 450 bar
Burst pressure: 600 bar
Approx. weight: 85 g
Conversion: 1 kgf/cm² = 14.2 psi; 1 bar = 14.5 psi

Dimensions
Dimension drawings and images are provided on the product page for mounting and mechanical reference.

Documents
Technical datasheet (PDF) available: Diaphragm Pressure Switch LF708A.

Technical specifications

• Model: LF708A
• Type: Diaphragm pressure switch for industrial and automotive use
• Body materials: Zinc-plated steel or stainless steel
• Contacts: Silver‑cadmium alloy (gold plating option)
• Electrical rating: up to 42 V DC (max 100 VAC), max 4 A
• Operating temperature: -40℃ to +100℃ (depending on diaphragm)
• Mechanical endurance: 1,000,000 cycles
• Electrical endurance: 100,000 cycles
• Ingress protection: terminal-dependent (IP00 / IP67 / IP65); covers IP54 / IP55
• Standards: EN 60730-1
• Max working pressure: 450 bar; burst pressure: 600 bar
• Approx. weight: 85 g