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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Viewing 1 - 20 of 434 products
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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. 519-232
BrandRS PRO
PHP361.58
Each
units
Float - Vertical Direct Load PP 300mm -20°C +80°C 250V 200V 700 mA - - -
RS Stock No. 312-7164
BrandRS PRO
PHP5,101.73
Each
units
Float - Vertical Direct Load Stainless Steel 300mm -10°C +120°C 300V 300V 500 mA 10bar - -
RS Stock No. 235-6204
BrandRS PRO
PHP6,283.54
Each
units
Float - Horizontal Direct Load Stainless Steel 300mm -10°C +120°C 300V 300V 500 mA 10bar - -
RS Stock No. 519-242
BrandRS PRO
PHP315.07
Each
units
Float - Vertical Direct Load PP 300mm -20°C +80°C 140V 200V 1 A - - -
RS Stock No. 519-236
BrandRS PRO
PHP276.64
Each
units
Float - Vertical Direct Load PP 300mm -20°C +80°C 140V 200V 700 mA - - -
RS Stock No. 519-258
BrandRS PRO
PHP255.72
Each
units
Float - Vertical Direct Load PP 300mm -20°C +80°C 250V 200V 700 mA - - -
RS Stock No. 762-1036
BrandRS PRO
PHP1,939.34
Each
units
Float - Vertical NO/NC Stainless Steel 300mm -40°C +125°C 250V 200V 2 A - - -
RS Stock No. 762-1039
BrandRS PRO
PHP2,515.27
Each
units
Float - Horizontal NO/NC Stainless Steel 300mm -40°C +125°C 250V 200V 500 mA 10bar Silicone -
RS Stock No. 174-8420
BrandRS PRO
PHP867.00
Each
units
Float - Horizontal External SPNO Polypropylene 1m -20°C +100°C 240V 120V 600 mA - Nitrile 0.6 A
RS Stock No. 174-8415
BrandRS PRO
PHP860.00
Each
units
Float - Vertical Internal NO/NC Polypropylene 1m -20°C +100°C 240V 120V 600 mA - Nitrile 0.6 A
RS Stock No. 174-8421
BrandRS PRO
PHP696.00
Each
units
Float - Horizontal External SPNO Nylon 1m -20°C +75°C 240V 120V 600 mA - - 0.6 A
RS Stock No. 174-8422
BrandRS PRO
PHP787.00
Each
units
Float - Horizontal Internal SPNO Nylon - -20°C +75°C 240V 120V 600 mA - Nitrile 0.6 A
RS Stock No. 174-8413
BrandRS PRO
PHP811.00
Each
units
Float - Vertical Internal NO/NC Nylon 1m -20°C +75°C 240V 120V 600 mA - Nitrile 0.6 A
RS Stock No. 174-8426
BrandRS PRO
PHP710.00
Each
units
Float - Horizontal External SPNO Nylon - -20°C +75°C 240V 120V 600 mA - - 0.6 A
RS Stock No. 174-8417
BrandRS PRO
PHP865.00
Each
units
Float - Vertical Internal NO/NC Polypropylene 1m -20°C +100°C 240V 120V 600 mA - - 0.6 A
RS Stock No. 174-8412
BrandRS PRO
PHP794.00
Each
units
Float - Horizontal Internal SPNO Polypropylene 1m -20°C +100°C 240V 120V 600 mA - Nitrile 0.6 A
RS Stock No. 174-8411
BrandRS PRO
PHP784.00
Each
units
Float - Horizontal Internal SPNO Nylon 1m -20°C +75°C 240V 120V 600 mA - Nitrile 0.6 A
RS Stock No. 519-248
BrandRS PRO
PHP321.13
Each
units
Float - Vertical Direct Load PP 300mm -20°C +80°C 130V 180V 700 mA - - -
RS Stock No. 174-8418
BrandRS PRO
PHP784.00
Each
units
Float - Horizontal External SPNO Nylon 1m -20°C +75°C 240V 120V 600 mA - Silicone 0.6 A
RS Stock No. 174-8414
BrandRS PRO
PHP814.00
Each
units
Float - Vertical Internal NO/NC Nylon 1m -20°C +75°C 240V 120V 600 mA - - 0.6 A
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