Type: ZW, snap action double pole contact miniature pressure switch, metal fitting, DPDT contact

 DIMENSIONS

Uses: High electrical rating, for 250V.

Main applications: Pressure sensing on water heaters, boilers, and electrical appliances. Membranes: EPDM, dia 22 mm. Silicone or NBR on request. Double membrane on request.

Fluid: water or air.

Fitting: Brass (stainless steel on request).

Pressure: positive.

Housing: PA66, UL94 VO.

Contact: DPDT, 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 pressure calibration only): 16A 125/250VAC;1/2HP 125VAC; 3/4HP 250VAC.

– High rating micro-switch (medium and high pressure calibration only): 2HP 240V, 21(8) A 240V (UL, CSA VDE switch).

– Low force micro-switch (set points less than 200 mbar): 1/4HP 6(1) A 240V ( UL, CSA VDE switch).

– On request: up to 25A 250V.

Action: momentary.

Set point calibration: factory calibrated and sealed, not field adjustable. On request it is possible to have staggered calibration.

Set point calibration limits: from 100 to 1500 mbar.

Electrical connection: 6.35 x 0.8 mm quick connect terminals.

Maximum pressure: 4 bars (58 PSI).

Ambient temperature limits: 0 to 85°C.

 

Available pressure inlet fittings


PDF

2D&3D Drawing

References (with SPDT contact):

Pressure inlet

Standard rating micro- switch 

(Calibration: 800 mbar)

Low pressure micro-switch

(Calibration 150 mbar)

High rating micro-switch

(Calibration 800 mbar)

1/8″ NPT ZW2K2RU1UH000000 ZW272RU50A500000

ZW2K2RU6UH000000

1/8″ BSPT

ZW2K2PU1UH000000 ZW272PU50A500000 ZW2K2PU6UH000000
1/8″ BSPP ZW2K2LU1UH000000 ZW272LU50A500000

ZW2K2LU6UH000000

1/4″ NPT

ZW2K2CU1UH000000 ZW272CU50A500000 ZW2K2CU6UH000000
1/4″ BSPT ZW2K2SU1UH000000 ZW272SU50A500000

ZW2K2SU6UH000000

1/4″ BSPP

ZW2K22U1UH000000 ZW2722U50A500000 ZW2K22U6UH000000
Smooth spout dia 4 mm ZW2K23U1UH000000 ZW2723U50A500000

ZW2K23U6UH000000

Spout dia 6 mm ZW2K27U1UH000000 ZW2727U50A500000 ZW2K27U6UH000000
Fluted spout dia 6 mm ZW2K2JU1UH000000 ZW272JU50A500000 ZW2K2JU6UH000000
Barbed spout dia 10mm ZW2K29U1UH000000 ZW2729U50A500000 ZW2K29U6UH000000
  Other set point values: replace H00 in the product reference by the requested value in mbar. Other set point values: replace A50 in the product reference by the requested value in mbar. Other set point values: replace H00 in the product reference by the requested value in mbar.