Type: ZA, slow action contact miniature pressure switches, 6.3 x 0.8mm QC terminals, plastic fitting, SPNC contact


Uses: Low voltage, high sensivity.

Main applications: Electronic circuits. Pressure sensing on wa­ter heaters. 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: Plastic.

Pressure: positive.

Housing: PA66, UL94 VO.

Contact: single pole normally close, slow break.

Electrical rating:

– Silver contact: max 1A 250V.

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

Action: momentary, open 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 1300mbar.

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):

Pressure inlet

Silver contact Gold plated contact
1/8’’ NPT ZA2X18EA0A500000



ZA2X1QEA0A500000 ZA2X1QEG0A500000
M10 x 1 ZA2X1MEA0A500000


Snap in fitting, 2 grooves dia 7.8

ZA2X1TEA0A500000 ZA2X1TEG0A500000

Snap in fitting, 1 groove dia 10

ZA2X1ZEA0A500000 ZA2X1ZEG0A500000

Snap in fitting, 1 spout dia 6mm



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



2D&3D Drawing