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

 

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

PDF

2D&3D Drawing