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Controls and Safety : Pressure Switches
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Type ZH
Type ZH
Type ZH
Low voltage circuit differential pressure switch, printed circuit terminals, 4mm spouts. Maximum set point value: ±90 kPa(±900 mbar, ±13 PSI) Minimum set point value: ±1 kPa (±10 mbar, ±0.15 PSI) Maximum electrical rating: 1A 250VAC
Controls and Safety
Pressure Switches
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product presentation

Main applications
Electronic printed circuits. Detection of low positive, negative or differential pressure. Measurement of liquid levels, air flow, filters efficiency. Very small differential, about 0.2 kPa (2 mbar, 0.03 PSI)

Membranes: Silicone, dia 22mm.

Fluid: Air only

Fitting: Two plastic spouts dia 4mm for soft PVC tube 3 × 6mm (⅛”)

Pressure: Differential

Housing: PA66

Contact: Single pole normally open, slow make and break.

Electrical rating:
- Silver contact: max 1A 250VAC resistive
- Gold plated contact: max 100 mA, 24VDC

Action: Momentary, close by pressure rise on positive pressure inlet

Set point calibration: Factory calibrated and sealed

Set point calibration limits: From -/+1 to -/+60 kPa (-/+ 10 to -/+ 600 mbar, -/+0.15 to -/+9 PSI)

Differential: Less than 0.5 kPa (5 mbar, 0.07 PSI)

Electrical connection: printed circuit terminal, dia. 1mm, 12.5mm distance

Maximum operating pressure: -/+ 90kPa(-/+ 900mbar, -/+ 13PSI)

Bursting pressure: > 4bar (0.4Mpa, 60PSI)

Ambient temperature limits: Air: -10 ~ 85°C (14 to 185°F)

Note: 10 kPa= 100 millibars = 1.45 PSI= 40 inches of water = 1016mm of water.