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 | |
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| Fitting raw material | |
| Electrical rating | |
| Voltage | |
| Contact style | |
| Contact Material | |
| Fluid | |
| Max operating temperature (°C) | |
| Min operating temperature (°C) | |
| Maximum pressure | |
| Maximum vacuum (mbar) | |
| Set point calibration (mbar) |
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
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Available pressure inlet fittings (1)
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 * |
 * |
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* only available for metal fitting
** only available for plastic fitting |
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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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