Switches

Section Code 1720 : Pressure operated.

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#2005022

521 Range of pressure switches with stainless steel bodies (1.4305 / AISI 303 or 1.4404 / AISI 316L see model) and EPDM ‘O’-rings. Maximum working pressure range 0-60.0 bar (see model). Maximum operating temperature 99°C

Section:
1720 Switches
Section Subtitle:
Pressure operated.
WRAS Approval Number:
2005022
Expiry date:
31/05/2025
Size:
See model.
Marking:
Huba Control, model number and date of manufacture (YY/MM).
Installation Requirements:
R001
Model:
521 Range: 521.914 S X X X X X X X (pressure range 0 - 2.5 bar), 521.915 S X X X X X X X (pressure range 0 - 4.0 bar), 521.917 S X X X X X X X (pressure range 0 - 6.0 bar), 521.930 S X X X X X X X (pressure range 0 - 10.0 bar), 521.931 S X X X X X X X (pressure range 0 - 16.0 bar), 521.932 S X X X X X X X (pressure range 0 - 25.0 bar), 521.933 S X X X X X X X (pressure range 0 - 40.0 bar), 521.940 S X X X X X X X (pressure range 0 - 60.0 bar). Where: 1st X = Version: 0 = Standard 1 = Oxygen applications 2nd X = Switching contact: 1 = Contact N/O High-Side-Switch PNP 2 = Contact N/C High-Side-Switch PNP 3rd X = Electrical connection: 0 = Swift connector without cable 3 = Connector M12x1 2 L = Swift connector with cable 1.5 m 4th X = Pressure connection, inside thread versions: 0 = 7/16 -20 UNF sealing cone with Schrader K = 7/16 -20 UNF 1 = G ¼ with O-Ring seal FPM D = ½ -14 NPT (< 60 bar) Outside thread versions: E = M20x1.5 sealed at front and manometer (combi) 2 = 7/16 -20 UNF sealing cone 3 = ¼ -18 NPT, 4 = G ¼ sealed at back DIN 3852-E with Profile seal ring in FPM 7 = R ¼ acc. to EN 10226 8 = G ½ sealed at back and manometer with Profile seal ring in FPM 9 = G ½ sealed at front 5th X = Pressure tip orifice: Without = 0 With = 2 6th X = Material pressure connection: N = Stainless steel 1.4305 / AISI 303 1 = Stainless steel 1.4404 / AISI 316L 7th X = Switching points: W = Indicates switching points (e.g.: W100/60bar).
Manufacturer:
Huba Control AG
Company Name
Huba Control AG
Address
Industriestrasse 17, CH-5436 Wurenlos, Switzerland

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#2304065

Water level pressure switch housed in a plastic body incorporating a silicone tube. Cold water use only.

Section:
1720 Switches
Section Subtitle:
Pressure operated.
WRAS Approval Number:
2304065
Expiry date:
30/04/2028
Note:
Only intended for use with submersible pumps. Open outlet use only.
Size:
4mm (silicone tube).
Marking:
DAB Pumps and NFC (Nearfield communication) logo on top of plastic casing.
Installation Requirements:
R001 R008
Model:
NFC WATER LEVEL MEASURMENT
Factor:
DAB Pumps Spa
Company Name
DAB Pumps Spa
Address
Via Marco Polo 35035 Mestrino (PD) Italy
Phone
Tel: +39 0499 048811 Fax: +39 0499 000179

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Manufacturer:
DAB Pumps Spa.
Company Name
DAB Pumps Spa.
Address
Via Bonanno Pisano 1 56031 Bientina (Pisa) Italy

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