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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Omschrijving Prijs 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-stocknr. 454-9105
FabrikantnummerSSF212XPL
FabrikantCynergy3
67,17 €
Each
Aantal stuks
Float - Horizontal NO/NC Stainless Steel - - +120°C - - 500 mA 5bar - -
RS-stocknr. 756-4245
FabrikantnummerRSF66A50A100P
FabrikantCynergy3
49,00 €
Each
Aantal stuks
Float - Vertical 2NO Polyphenylene Sulfide - -10°C +85°C - - 600 mA - Nitrile -
RS-stocknr. 211-985
FabrikantnummerRSF64EXS
FabrikantCynergy3
55,57 €
Each
Aantal stuks
Float - Vertical Direct Load Polyphenylene Sulfide 1.5m 0°C +75°C - - 600 mA - - -
RS-stocknr. 431-8406
FabrikantnummerSSF212X100
FabrikantCynergy3
77,43 €
Each
Aantal stuks
Float - Horizontal NO/NC Stainless Steel 1m - +120°C - - 500 mA 5bar - -
RS-stocknr. 331-017
FabrikantnummerRSF53Y100JC
FabrikantCynergy3
15,94 €
Each
Aantal stuks
Float - Vertical NO/NC Nylon 1m -20°C +75°C - - 600 mA - Nitrile -
RS-stocknr. 780-0223
FabrikantnummerSSF67A25B150PM12
FabrikantCynergy3
197,97 €
Each
Aantal stuks
Float - Vertical NO/NC Stainless Steel - -20°C +135°C - - 600 mA 10bar Nitrile -
RS-stocknr. 348-8021
FabrikantnummerRSF66A25B175
FabrikantCynergy3
45,12 €
Each
Aantal stuks
Float - Vertical Direct Load Polyphenylene Sulfide 1m -10°C +85°C - - 600 mA - Nitrile -
RS-stocknr. 756-4242
FabrikantnummerRSF66A25B175P
FabrikantCynergy3
43,48 €
Each
Aantal stuks
Float - Vertical NO/NC Polyphenylene Sulfide - -10°C +85°C - - 600 mA - Nitrile -
RS-stocknr. 869-7595
FabrikantnummerRSF83YP
FabrikantCynergy3
15,84 €
Each
Aantal stuks
Float - Horizontal NO/NC Nylon - -20°C +75°C 240V 120V 600 mA - - -
RS-stocknr. 339-730
FabrikantnummerRSF43Y050QF
FabrikantCynergy3
14,54 €
Each
Aantal stuks
Float - Horizontal Internal NO/NC Nylon 500mm -20°C +75°C - - 600 mA - Nitrile -
RS-stocknr. 845-976
FabrikantnummerRSF44Y050QF
FabrikantCynergy3
17,52 €
Each
Aantal stuks
Float - Horizontal Internal NO/NC Polypropylene 500mm -20°C +100°C - - 600 mA - Nitrile -
RS-stocknr. 756-4179
FabrikantnummerSSV66A200E1GP
FabrikantCynergy3
113,85 €
Each
Aantal stuks
Float - Vertical NO/NC Stainless Steel - - - - - 500 mA 20bar - -
RS-stocknr. 725-9852
FabrikantnummerRSF83Y100R
FabrikantCynergy3
14,82 €
Each
Aantal stuks
Float - Horizontal External NO/NC Nylon 1m -20°C +75°C - - 600 mA - - -
RS-stocknr. 317-932
FabrikantnummerRSF73Y050QM
FabrikantCynergy3
15,17 €
Each
Aantal stuks
Float - Horizontal External Direct Load Nylon 500mm -20°C +75°C - - 600 mA - Silicone -
RS-stocknr. 124-2555
FabrikantnummerSSF50X100X/RS
FabrikantCynergy3
170,29 €
Each
Aantal stuks
Float - Flange Mount NO/NC Stainless Steel 304 (Stem), Stainless Steel 316 (Float) 1m - +80°C 240V 200V 500 mA 20bar - -
RS-stocknr. 338-9700
FabrikantnummerRSF43Y100RF
FabrikantCynergy3
15,93 €
Each
Aantal stuks
Float - Horizontal Internal NO/NC Nylon 1m -20°C +75°C - - 600 mA - Nitrile -
RS-stocknr. 756-4267
FabrikantnummerRSF58H100J1/8
FabrikantCynergy3
22,33 €
Each
Aantal stuks
Float - Vertical NO/NC Polypropylene 1m -20°C +120°C - - 1 A - Nitrile -
RS-stocknr. 725-9906
FabrikantnummerSSF22X100
FabrikantCynergy3
78,13 €
Each
Aantal stuks
Float - Vertical NO/NC Stainless Steel 1m -20°C +120°C - - 700 mA 30bar - -
RS-stocknr. 756-4264
FabrikantnummerRSF58H100JC
FabrikantCynergy3
22,18 €
Each
Aantal stuks
Float - Vertical NO/NC Polypropylene 1m -20°C +100°C - - 1 A - Nitrile -
RS-stocknr. 756-4283
FabrikantnummerSSF211X100H
FabrikantCynergy3
118,83 €
Each
Aantal stuks
Float - Horizontal NO/NC Stainless Steel 1m -20°C +180°C - - 500 mA 5bar - -