Snap action contact miniature vacuum switches, DPDT contact

Uses: High electrical rating, for 250V.

Main applications: Vacuum detection on pumps, filters, ventilation, and electrical appliances.

Housing raw material

Fitting raw material

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Electrical rating

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Voltage

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Contact style

Contact Material

Fluid

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Max operating temperature (°C)

Min operating temperature (°C)

Maximum pressure

Maximum vacuum (mbar)

Set point calibration (mbar)

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Description

Uses: High electrical rating, for 250V.

Main applications: Vacuum detection on pumps, filters, ventilation, and electrical appliances.

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

Fluid: water or air

Fitting: Plastic or metal

Pressure: negative (Vacuum)

Housing: PA66, UL94 VO

Contact: two SPDT switches, snap action. NO or NC contacts available with MOQ

Electrical rating: Depends on micro-switch operating force that is linked to the electrical rating

  • Standard rating micro-switch (medium and high vacuum calibration only): 16A 125/250VAC;1/2HP 125VAC; 3/4HP Differential about 60 mbar
  • High rating micro-switch (medium and high vacuum calibration only): 2HP 240V, 21(8) A 240V (UL, CSA VDE switch). Differential about 90
  • Low force micro-switch (vacuum less than minus 150 mbar): 1/4HP 6(1) A 240V ( UL, CSA VDE switch) Differential about 40
  • On request: up to 25A 250V

Action: momentary.

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

Calibration condition: the contact between Com and NC opens when vacuum pressure goes from atmospheric pressure to requested vacuum set point.

Set point calibration limits: from minus 50 to minus 700 mbar

Electrical connection: 6.35 x 0.8 mm quick connect terminals

Maximum pressure: 4 bars (59 PSI)

Maximum vacuum: minus 700 mbar (relative pressure)

Ambient temperature limits: 0 to 85°C

Dimensions

Available pressure inlet fittings (1)

 

*

*

*

*

 

 

* * *
 

**

**

**

* only available for metal fitting

** only available for plastic fitting

References (with 1/8″ NPT fitting)

Fitting material  Standard rating micro-switch (calibration: minus 200mbar) Low force micro-switch (calibration: minus 100mbar) High rating micro-switch (calibration minus 300mbar)
Plastic ZT2228U10B000000 ZT2528U50A000000 ZT2B8U60C0000000
Metal ZT222RU10B000000 ZT252RU50A000000 ZT2BRU60C0000000

Contact us for other calibration or pressure inlet

Technical specifications sheet

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