Float Switches

Float switches regulate the liquid level in tanks, wells, etc. and are used for automatic level control of groundwater, wastewater and sewage pumps, for raw water and liquid transfer pumps at waterworks, and for high water alarm.

What does a float switch consist of?

Float switches have a reed switch and a pivoted magnet and can be used for normally open (N/O) or normally closed (N/C) operation. The switch action can be reversed rotating the switch through 180°. The movement of float, due to changing fluid level, will cause the reed change to work (for instance close or open) at a specific level. This trusted and tried technology depends on a generally straightforward plan that offers long-haul quality without the requirement for the user to calibrate a switch.

What are material types of a float switch?

  • Nylon – used for oils, diesel, organic chemicals
  • Polypropylene (PP) – acids and alkali, detergents, oils, water, organic chemicals
  • Polyphenylene sulphide (PPS) – used for more aggressive chemicals, and higher temperatures, up to 120ºC
  • Stainless steel – medical and food industries, hydraulic fluids, chemicals

Features and Benefits

  • The highly flexible thermoplastic rubber cable has an extremely high mechanical load rating
  • The drop shape of the stabilizing weight eccentrically mounted in the housing makes the float switch insensitive to turbulence
  • The microswitch, fitted in a dual-chamber system, is completely shock- and rupture-proof

Where can be float switches used?

  • When emptying a tank
  • When filling a tank
  • For alarm at high water level
  • For alarm at low water level

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Description Price Device Type For Use With Mounting Type Switch Output Body Material Cable Length Minimum Operating Temperature Maximum Operating Temperature Maximum AC Voltage Maximum DC Voltage Maximum Current Maximum Pressure Gasket Material Current Rating
RS Stock No. 338-9744
Mfr. Part No.RSF74Y100RN
BrandCynergy3
HK$157.50
Each
units
Float - Horizontal External NO/NC Polypropylene 1m -20°C +100°C - - 600 mA - Nitrile -
RS Stock No. 756-4144
Mfr. Part No.SSF217XPM12
BrandCynergy3
HK$1,183.14
Each
units
Float - Horizontal NO/NC Stainless Steel - - +120°C - - 500 mA 5bar - -
RS Stock No. 339-5200
Mfr. Part No.LFL1-CK-N-PVC5
HK$677.93
Each
units
Float - Horizontal NAMUR Polypropylene 5m -20°C +70°C - - 2.2 mA 3bar - -
RS Stock No. 780-0248
Mfr. Part No.SSF67A50A150PM12
BrandCynergy3
HK$1,876.27
Each
units
Float - Vertical 2NO Stainless Steel - -20°C +135°C - - 600 mA 10bar Nitrile -
RS Stock No. 235-6204
BrandRS PRO
HK$694.36
Each
units
Float - Horizontal Direct Load Stainless Steel 300mm -10°C +120°C 300V 300V 500 mA 10bar - -
RS Stock No. 780-0295
Mfr. Part No.FSHPLC
BrandCynergy3
HK$980.06
Each
units
Float - Vertical NO Stainless Steel - -20°C +100°C - - 1 mA 10bar Nitrile -
RS Stock No. 338-9722
Mfr. Part No.RSF73Y100RN
BrandCynergy3
HK$149.38
Each
units
Float - Horizontal External NO/NC Nylon 1m -20°C +75°C - - 600 mA - Nitrile -
RS Stock No. 124-0140
Mfr. Part No.LV42-7201
BrandFlowline
HK$2,202.82
Each
units
Float Level Switch - Vertical SPDT PP 20ft -20°C +80°C 250V - - 2bar - 10 A
RS Stock No. 869-7731
Mfr. Part No.LM10CW
BrandCynergy3
HK$1,395.68
Each
units
Float - Cable SPDT Polypropylene 5m 0°C +55°C 250V 110V 10 A 10bar - -
RS Stock No. 756-4211
Mfr. Part No.RSF104Y100JN
BrandCynergy3
HK$164.25
Each
units
Float - Vertical NO/NC Polypropylene - -20°C +100°C - - 600 mA - Nitrile -
RS Stock No. 869-7589
Mfr. Part No.RSF74YNP
BrandCynergy3
HK$146.73
Each
units
Float - Horizontal NO/NC Polypropylene - -20°C +100°C 240V 120V 600 mA - Nitrile -
RS Stock No. 228-1992
Mfr. Part No.RSF34W100RF
BrandCynergy3
HK$216.32
Each
units
Float - Horizontal NO/NC Polypropylene 1m -20°C +100°C - - 5 A - Nitrile -
RS Stock No. 446-2610
Mfr. Part No.SLP4AP15
BrandCynergy3
HK$1,247.94
Each
units
Float - Vertical Direct Load Stainless Steel 15m 0°C +55°C - - 600 mA 5bar - -
RS Stock No. 756-4245
Mfr. Part No.RSF66A50A100P
BrandCynergy3
HK$434.72
Each
units
Float - Vertical 2NO Polyphenylene Sulfide - -10°C +85°C - - 600 mA - Nitrile -
RS Stock No. 312-7164
BrandRS PRO
HK$640.51
Each
units
Float - Vertical Direct Load Stainless Steel 300mm -10°C +120°C 300V 300V 500 mA 10bar - -
RS Stock No. 446-2575
Mfr. Part No.RSF66A50A150
BrandCynergy3
HK$433.46
Each
units
Float - Vertical Direct Load Polyphenylene Sulfide 1m -10°C +85°C - - 600 mA - Nitrile -
RS Stock No. 756-4179
Mfr. Part No.SSV66A200E1GP
BrandCynergy3
HK$959.64
Each
units
Float - Vertical NO/NC Stainless Steel - - - - - 500 mA 20bar - -
RS Stock No. 519-248
BrandRS PRO
HK$54.55
Each
units
Float - Vertical Direct Load PP 300mm -20°C +80°C 130V 180V 700 mA - - -
RS Stock No. 725-9940
Mfr. Part No.RSF58Y100RC
BrandCynergy3
HK$141.90
Each
units
Float - Vertical NO/NC Polypropylene 1m -20°C +100°C - - 600 mA - Nitrile -
RS Stock No. 780-0135
Mfr. Part No.SH-3151RH
BrandCynergy3
HK$3,974.60
Each
units
Float - Horizontal - Aluminium - 0°C +200°C - - 1 A 25bar - -
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