Home / Controls, safety & Regulation / Pressure switches / 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 ①
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. |