Shop Anfield SMA/SMF High Pressure Switches

Our Series SMA (Field Adjustable) / SMF (Factory Preset) High Pressure Switch is designed for hydraulic and pneumatic systems, providing reliable control in demanding applications. Utilizing a robust piston/diaphragm mechanism, this switch delivers exceptional accuracy and high proof pressures with zero leakage, ensuring longevity and durability. It features a snap-action micro switch, with options for factory preset or field adjustment, and comes with various protection ratings, including IP67 for harsh environments. Approved by UL and CE, this high-pressure switch is ideal for applications such as hydraulic system control, material handling, lubrication systems, and garbage compactors. Its versatility includes a wide temperature range and multiple diaphragm materials, making it a dependable choice for various industrial needs. With a maximum overpressure of 9,000 PSI and a repeatability of ±2%, the SMA/SMF switch is a top-tier solution for precise pressure management.

Electrical:

Switch Type:

Protection:

Media Temperature Range:

Ambient Temperature Range:

Mechanical Life Expectancy:

Diaphragm Material:

Housing Material:

Maximum Overpressure:

Repeatability:

Differential:

View the Catalog:

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Standard 5 A [12/24 VDC, 125 VAC] or 3A [250 VAC]; Optional 10A or Gold Contact

Snap Action

DIN 43650A (18 mm) IP65; Spades IP00, Flying Lead IP64; Flying Lead with CA/CS IP67

Nitrile: -20°F to 180°F; Viton: 23°F to 248°F; HNBR: -20°F to 248°F; EPDM:-20°F to 248°F

-40°F to 180°F

1,000,000 Cycles @ 1000 PSI (69 BAR)

Standard Nitrile; Optional Viton, EPDM, HNBR

Zinc Plated Steel (Optional Stainless Steel)

9000 PSI (620 BAR); only 4700 PSI (324 BAR) for SMA-3 model

+/- 2% of full set point range at 20°C (68°F)

7 - 30% of setting

Click HERE to view the SMA/SMF Catalog

Click HERE to view the entire SMA/SMF Collection

Shop Anfield SMA/SMF High Pressure Switches

Click on the model number in the chart below to view that pressure switch. More options available upon request!


Product SKU pressure range Thread Option Switch Type Electrical Termination Lead Time Price
SMA-3-4M-C-FL 10-35psi 0.25 (1/4") NPT Male SPDT (Single Pole Double Throw, Normally Open and Normally Closed) Flying Lead 4-5 Weeks $48.99
SMA-3-4M-C-HC 10-35psi 0.25 (1/4") NPT Male SPDT (Single Pole Double Throw, Normally Open and Normally Closed) DIN 43650A 4-5 Weeks $60.99
SMA-4-4M-C-FL 30-120psi 0.25 (1/4") NPT Male SPDT (Single Pole Double Throw, Normally Open and Normally Closed) Flying Lead 4-5 Weeks $48.99
SMA-4-4M-C-HC 30-120psi 0.25 (1/4") NPT Male SPDT (Single Pole Double Throw, Normally Open and Normally Closed) DIN 43650A 4-5 Weeks $60.99
SMA-5-4M-C-FL 75-300psi 0.25 (1/4") NPT Male SPDT (Single Pole Double Throw, Normally Open and Normally Closed) Flying Lead 4-5 Weeks $48.99
SMA-5-4M-C-HC 75-300psi 0.25 (1/4") NPT Male SPDT (Single Pole Double Throw, Normally Open and Normally Closed) DIN 43650A 4-5 Weeks $60.99
SMA-6-4M-C-FL 300-1200psi 0.25 (1/4") NPT Male SPDT (Single Pole Double Throw, Normally Open and Normally Closed) Flying Lead 4-5 Weeks $48.99
SMA-6-4M-C-HC 300-1200psi 0.25 (1/4") NPT Male SPDT (Single Pole Double Throw, Normally Open and Normally Closed) DIN 43650A 4-5 Weeks $60.99
SMA-7-4M-C-FL 1000-3000psi 0.25 (1/4") NPT Male SPDT (Single Pole Double Throw, Normally Open and Normally Closed) Flying Lead 4-5 Weeks $48.99
SMA-7-4M-C-HC 1000-3000psi 0.25 (1/4") NPT Male SPDT (Single Pole Double Throw, Normally Open and Normally Closed) DIN 43650A 4-5 Weeks $60.99
SMA-8-4M-C-FL 2000-5000psi 0.25 (1/4") NPT Male SPDT (Single Pole Double Throw, Normally Open and Normally Closed) Flying Lead 4-5 Weeks $48.99
SMA-8-4M-C-HC 2000-5000psi 0.25 (1/4") NPT Male SPDT (Single Pole Double Throw, Normally Open and Normally Closed) DIN 43650A 4-5 Weeks $60.99








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