Home / Controls, safety & Regulation / Pressure switches / Type ZD: Snap action contact miniature vacuum switch, plastic fitting. SPDT contact
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
Pressure: negative (Vacuum)
Housing: PA66, UL94 VO
Contact: SPDT, 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 250VAC. 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 mbar.
– Low force micro-switch (vacuum less than minus 150 mbar):
1/4HP 6(1) A 240V ( UL, CSA VDE switch) Differential about 40 mbar.
– 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 (58 PSI)
Maximum vacuum: minus 700 mbar (relative pressure)
Ambient temperature limits: 0 to 85°C
Available pressure inlet fittings ①
References ( with SPDT contact):
Pressure inlet | Standard rating micro- switch (Calibration : minus 200 mbar) |
Low pressure micro-switch (Calibration minus 100 mbar) |
High rating micro-switch (Calibration minus 300 mbar) |
1/8’’ NPT | ZD2228U10B000000 | ZD2528U50A000000 | ZD2B8U60C0000000 |
1/4’’BSPP | ZD222QU10B000000 | ZD252QU50A000000 | ZD2BQU60C0000000 |
M10 x 1 | ZD222MU10B000000 | ZD252MU50A000000 | ZD2BMU60C0000000 |
Snap in fitting, 2 grooves dia 7.8 | ZD222TU10B000000 | ZD252TU50A000000 | ZD2BTU60C0000000 |
Snap in fitting, 1 groove dia 10 | ZD222ZU10B000000 | ZD252ZU50A000000 | ZD2BZU60C0000000 |
Snap in fitting, 1 spout dia 6 mm | ZD222AU10B000000 | ZD252AU50A000000 | ZD2BAU60C0000000 |
Other set point values: replace B00 in the product reference by the requested value in mbar |
Other set point values: replace A00 in the product reference by the requested value in mbar |
Other set point values: replace 000 in the product reference by the requested value in mbar |