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

...
Read more Read less

Filters

Viewing 1 - 20 of 436 products
Results per page
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
TWD617.00
Each
units
Float - Horizontal Internal NO/NC Nylon 500mm -20°C +75°C - - 600 mA - Nitrile -
RS Stock No. 122-8384
Mfr. Part No.162745
TWD6,967.00
Each
units
Float - Vertical SPST NO Nylon 24in -40°C +121°C - - - 10bar - -
RS Stock No. 889-1267
Mfr. Part No.LV20-1201
BrandFlowline
TWD1,211.00
Each
units
Float Level Switch - Vertical NO/NC Polypropylene 600mm -40°C +80°C 120V 120V 10 A 10psi - -
RS Stock No. 397-0564
Mfr. Part No.RSF84Y100R
BrandCynergy3
TWD589.00
Each
units
Float - Horizontal NO/NC Polypropylene 1m -20°C +100°C - - 600 mA - Silicone, Viton -
RS Stock No. 519-258
BrandRS PRO
TWD236.00
Each
units
Float - Vertical Direct Load PP 300mm -20°C +80°C 250V 200V 700 mA - - -
RS Stock No. 756-4261
Mfr. Part No.RSF53Y100J1/8
BrandCynergy3
TWD605.00
Each
units
Float - Vertical NO/NC Nylon 1m -20°C +75°C - - 600 mA - Nitrile -
RS Stock No. 725-9940
Mfr. Part No.RSF58Y100RC
BrandCynergy3
TWD599.00
Each
units
Float - Vertical NO/NC Polypropylene 1m -20°C +100°C - - 600 mA - Nitrile -
RS Stock No. 331-017
Mfr. Part No.RSF53Y100JC
BrandCynergy3
TWD594.00
Each
units
Float - Vertical NO/NC Nylon 1m -20°C +75°C - - 600 mA - Nitrile -
RS Stock No. 288-9338
Mfr. Part No.RSF16Y050TG
BrandCynergy3
TWD1,101.00
Each
units
Float - Direct Mounting NO/NC Polyphenylene Sulfide 500mm -20°C +120°C - - 600 mA - Silicone, Viton -
RS Stock No. 348-8037
Mfr. Part No.RSF64BEXS
BrandCynergy3
TWD1,975.00
Each
units
Float - Vertical Direct Load Polyphenylene Sulfide 1.5m 0°C +75°C - - 600 mA - - -
RS Stock No. 519-236
BrandRS PRO
TWD205.00
Each
units
Float - Vertical Direct Load PP 300mm -20°C +80°C 140V 200V 700 mA - - -
RS Stock No. 289-1319
Mfr. Part No.RSF46Y050TG
BrandCynergy3
TWD748.00
Each
units
Float - Horizontal Internal NO/NC Polyphenylene Sulfide 500mm -10°C +120°C - - 600 mA - Viton -
RS Stock No. 519-232
BrandRS PRO
TWD231.00
Each
units
Float - Vertical Direct Load PP 300mm -20°C +80°C 250V 200V 700 mA - - -
RS Stock No. 780-0129
Mfr. Part No.SH-3052
BrandCynergy3
TWD10,757.00
Each
units
Float - Horizontal - Aluminium - 0°C +100°C - - 5 A 20bar - -
RS Stock No. 869-7560
Mfr. Part No.RSF43YFP
BrandCynergy3
TWD586.00
Each
units
Float - Horizontal NO/NC Nylon - -20°C +75°C 240V 120V 600 mA - Nitrile -
RS Stock No. 338-9772
Mfr. Part No.RSF54Y100RC
BrandCynergy3
TWD675.00
Each
units
Float - Vertical NO/NC Polypropylene 1m -20°C +100°C - - 600 mA - Nitrile -
RS Stock No. 454-9076
Mfr. Part No.LM10A
BrandCynergy3
TWD4,630.00
Each
units
Float - - Direct Load PE 5m 0°C +55°C - - 1 A dc, 4 A ac 10bar - -
RS Stock No. 338-9716
Mfr. Part No.RSF46Y100RG
BrandCynergy3
TWD664.00
Each
units
Float - Horizontal Internal NO/NC Polyphenylene Sulfide 1m -10°C +120°C - - 600 mA - Silicone, Viton -
RS Stock No. 124-2560
Mfr. Part No.SSF216XPL/RS
BrandCynergy3
TWD6,619.00
Each
units
Float - Horizontal NO/NC Stainless Steel 304 (Stem), Stainless Steel 316 (Float) - - +120°C 300V 300V 500 mA 10bar - -
RS Stock No. 174-8396
Mfr. Part No.LLF78H100RN
BrandCynergy3
TWD1,096.00
Each
units
Float - Horizontal External SPNO Polypropylene 1m -20°C +100°C 300V 300V 1 A - Nitrile 1 A