Type: ZA, slow action contact miniature pressure switches, metal fitting, SPNO contact


Uses: Low voltage, high sensivity.

Main applications: Electronic printed circuit. This pressure 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: water or air.

Fitting: Brass (stainless steel on request).

Pressure: positive.

Housing: PA66, UL94 VO.

Contact: single pole normally open, slow make.

Electrical rating:

– Silver contact: max 1A 250V.

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

Action: momentary, close on pressure rise.

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

Set point calibration limits: standard calibration 150mbar, other values are achievable from 100 to 1300 mbar.

Electrical connection: 6.35 x 0.8 mm quick connect terminals.

Maximum pressure: 2 bars (29 PSI).

Ambient temperature limits: 0 to 85°C.


Available pressure inlet fittings

References (with calibration at 50 mbar and brass fitting):

Pressure inlet

Silver contact Gold plated contact
1/8″ NPT ZA2X2REA0A500000


1/8″ BSPT

ZA2X2PEA0A500000 ZA2X2PEG0A500000

1/8″ BSPP

ZA2X2LEA0A500000 ZA2X2LEG0A500000
1/4″ NPT ZA2X2CEA0A500000


1/4″ BSPT

ZA2X2SEA0A500000 ZA2X2SEG0A500000
1/4″ BSPP ZA2X22EA0A500000


Smooth spout dia 4 mm

ZA2X23EA0A500000 ZA2X23EG0A500000

Spout dia 6 mm



Fluted spout dia 6 mm ZA2X2JEA0A500000


Barbed spout dia 10 mm ZA2X29EA0A500000


Other set point values: replace A50 in the product reference by the requested value in mbar.


2D&3D Drawing