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. 339-730
Mfr. Part No.RSF43Y050QF
BrandCynergy3
SGD18.76
Each
units
Float - Horizontal Internal NO/NC Nylon 500mm -20°C +75°C - - 600 mA - Nitrile -
RS Stock No. 845-960
Mfr. Part No.RSF54Y100JC
BrandCynergy3
SGD28.13
Each
units
Float - Vertical NO/NC Polypropylene 1m -20°C +100°C - - 600 mA - Nitrile -
RS Stock No. 454-9105
Mfr. Part No.SSF212XPL
BrandCynergy3
SGD201.11
Each
units
Float - Horizontal NO/NC Stainless Steel - - +120°C - - 500 mA 5bar - -
RS Stock No. 845-976
Mfr. Part No.RSF44Y050QF
BrandCynergy3
SGD22.40
Each
units
Float - Horizontal Internal NO/NC Polypropylene 500mm -20°C +100°C - - 600 mA - Nitrile -
RS Stock No. 312-7164
BrandRS PRO
SGD132.45
Each
units
Float - Vertical Direct Load Stainless Steel 300mm -10°C +120°C 300V 300V 500 mA 10bar - -
RS Stock No. 906-9522
Mfr. Part No.CFS2-DNBPN-20
SGD42.41
Each
units
Float Switch - Cable SPDT Polypropylene 240.2in 0°C +50°C 250V - - 1bar - 10 A
RS Stock No. 331-017
Mfr. Part No.RSF53Y100JC
BrandCynergy3
SGD26.52
Each
units
Float - Vertical NO/NC Nylon 1m -20°C +75°C - - 600 mA - Nitrile -
RS Stock No. 205-6910
Mfr. Part No.MS10A
BrandCynergy3
SGD48.65
Each
units
Float - - NO PE 5m 0°C +55°C - - 1 A dc, 4 A ac 10bar - -
RS Stock No. 446-2597
Mfr. Part No.RSF66B50B150
BrandCynergy3
SGD80.29
Each
units
Float - Vertical Direct Load Polyphenylene Sulfide 1m -10°C +85°C - - 600 mA - Nitrile -
RS Stock No. 211-985
Mfr. Part No.RSF64EXS
BrandCynergy3
SGD82.56
Each
units
Float - Vertical Direct Load Polyphenylene Sulfide 1.5m 0°C +75°C - - 600 mA - - -
RS Stock No. 859-3333
Mfr. Part No.FSH-21
SGD54.60
Each
units
Float Switch - Horizontal SPST Polypropylene - -20°C +80°C - - 0.5 (Switching) A, 1 (Carrying) A 57psi - -
RS Stock No. 762-1036
BrandRS PRO
SGD47.95
Each
units
Float - Vertical NO/NC Stainless Steel 300mm -40°C +125°C 250V 200V 2 A - - -
RS Stock No. 317-932
Mfr. Part No.RSF73Y050QM
BrandCynergy3
SGD22.16
Each
units
Float - Horizontal External Direct Load Nylon 500mm -20°C +75°C - - 600 mA - Silicone -
RS Stock No. 339-5244
Mfr. Part No.LFL2-BK-U-PVC5
SGD131.43
Each
units
Float - Horizontal Direct Load Polypropylene 5m -20°C +70°C - - 1 A dc, 3 A ac 2bar - -
RS Stock No. 338-9788
Mfr. Part No.RSF56Y100RB
BrandCynergy3
SGD27.78
Each
units
Float - Vertical NO/NC Polyphenylene Sulfide 1m -10°C +100°C - - 600 mA - Silicone, Viton -
RS Stock No. 869-7609
Mfr. Part No.MS20C
BrandCynergy3
SGD56.04
Each
units
Float - Cable NO/NC Polypropylene 5m 0°C +55°C 250V 110V 20 A 10bar - -
RS Stock No. 519-236
BrandRS PRO
SGD6.84
Each
units
Float - Vertical Direct Load PP 300mm -20°C +80°C 140V 200V 700 mA - - -
RS Stock No. 339-5238
Mfr. Part No.LFL2-CK-U-PVC5
SGD117.23
Each
units
Float - Horizontal Direct Load Polypropylene 5m +5°C +70°C - - 1 A dc, 3 A ac 3bar - -
RS Stock No. 397-0570
Mfr. Part No.RSF86Y100R
BrandCynergy3
SGD26.80
Each
units
Float - Horizontal NO/NC Polyphenylene Sulfide 1m -10°C +120°C - - 600 mA - Viton -
RS Stock No. 431-8406
Mfr. Part No.SSF212X100
BrandCynergy3
SGD127.40
Each
units
Float - Horizontal NO/NC Stainless Steel 1m - +120°C - - 500 mA 5bar - -
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