Type: ZF, slow action contact miniature vacuum switches for printed circuit boards with 5 mm pitch, plastic fitting, SPNO contact


Uses: Low voltage, high sensivity.

Main applications: Electronic printed circuit. This vacuum switch is more sensible than snap action models and can be calibrated at lower pressure values. Very small differential.

Membranes: EPDM, dia 22 mm. Silicone or NBR on request.

Fluid: air or water.

Fitting: Plastic.

Pressure: negative (Vacuum).

Housing: PA66, UL94 VO.

Contact: single pole normally open at atmospheric pressure, slow make. Electrical rating:

– Silver contact: max 1A 250V.

– Gold plated contact: max 100 mA, 24V.

Action: momentary, close on vacuum increase (=decrease of absolute pressure).

Set point calibration: factory calibrated and sealed, not field adjustable.

Set point calibration limits (relative pressure): standard calibration minus 50mbar, other values are achievable from minus 20 to minus 200 mbar.

Electrical connection: printed circuit terminal, dia 1.2 mm, 15 mm spacing.

Maximum pressure: 2 bars (29 PSI).

Maximum vacuum: minus 500 mbar (relative pressure).

Ambient temperature limits: 0 to 85°C.

Available pressure inlet fittings


2D&3D Drawing

References (with calibration at minus 50 mbar):

Pressure inlet Silver contact Gold plated contact
1/8″ NPT ZF2X28L105000000 ZF2X28LG05000000
1/4″ BSPP ZF2X2QL105000000 ZF2X2QLG05000000
M10 x 1 ZF2X2ML105000000 ZF2X2MLG05000000
Snap in fitting, 2 grooves dia 7.8 ZF2X2TL105000000 ZF2X2TLG05000000
Snap in fitting, 1 groove dia 10 ZF2X2ZL105000000 ZF2X2ZLG05000000
Snap in fitting, 1 spout dia 6 mm ZF2X2AL105000000 ZF2X2ALG05000000

Other set point values: replace 050 in the product reference by the requested value in mbar.