Float Switches

A float switch is a level sensor used to detect the level of liquid usually in a tank, container or well. The flotation part of the device sits on top of the liquid and will switch on the rise and fall of the liquid. Float switches 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.RS Components offer a wide range of high-quality horizontal and vertical devices from leading brands including Cynergy3, Pepperl + Fuchs, Gems Sensors, Telemecanique and of course RS PRO

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 the 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-proofAvailable with WRAS approvals.

What applications can be float switches used?

When emptying a tankWhen filling a tankFor alarm at high water levelFor 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. 756-4245
Mfr. Part No.RSF66A50A100P
BrandCynergy3
SGD77.29
Each
units
Float - Vertical 2NO Polyphenylene Sulfide - -10°C +85°C - - 600 mA - Nitrile -
RS Stock No. 446-2575
Mfr. Part No.RSF66A50A150
BrandCynergy3
SGD83.73
Each
units
Float - Vertical Direct Load Polyphenylene Sulfide 1m -10°C +85°C - - 600 mA - Nitrile -
RS Stock No. 756-4166
Mfr. Part No.SSV66A100E1GP
BrandCynergy3
SGD168.05
Each
units
Float - Vertical NO/NC Stainless Steel - - - - - 500 mA 20bar - -
RS Stock No. 845-982
Mfr. Part No.RSF53V100MC
BrandCynergy3
SGD27.46
Each
units
Float - Vertical NO/NC Nylon 1m -20°C +75°C - - 600 mA - Nitrile -
RS Stock No. 762-1039
BrandRS PRO
SGD68.04
Each
units
Float - Horizontal NO Stainless Steel 300mm -40°C +125°C 250V 200V 500 mA 10bar Silicone -
RS Stock No. 338-9744
Mfr. Part No.RSF74Y100RN
BrandCynergy3
SGD29.17
Each
units
Float - Horizontal External NO/NC Polypropylene 1m -20°C +100°C - - 600 mA - Nitrile -
RS Stock No. 350-2076
Mfr. Part No.LFL2-CK-U-PUR5
SGD112.00
Each
units
Float - Horizontal Direct Load Polypropylene 5m -20°C +90°C - - 1 A dc, 3 A ac 3bar - -
RS Stock No. 845-998
Mfr. Part No.RSF54V100MC
BrandCynergy3
SGD30.39
Each
units
Float - Vertical NO/NC Polypropylene 1m -20°C +100°C - - 600 mA - Nitrile -
RS Stock No. 348-8021
Mfr. Part No.RSF66A25B175
BrandCynergy3
SGD77.40
Each
units
Float - Vertical Direct Load Polyphenylene Sulfide 1m -10°C +85°C - - 600 mA - Nitrile -
RS Stock No. 338-9750
Mfr. Part No.RSF76Y100RV
BrandCynergy3
SGD28.64
Each
units
Float - Horizontal External NO/NC Polyphenylene Sulfide 1m -10°C +105°C - - 600 mA - Viton -
RS Stock No. 725-9877
Mfr. Part No.RSF86H050T
BrandCynergy3
SGD40.35
Each
units
Float - Horizontal External NO/NC Polyphenylene Sulfide 1m -10°C +120°C - - 600 mA - - -
RS Stock No. 228-1986
Mfr. Part No.RSF33W100RC
BrandCynergy3
SGD36.18
Each
units
Float - Horizontal NO/NC Nylon 1m -20°C +75°C - - 5 A - Nitrile -
RS Stock No. 235-6204
BrandRS PRO
SGD122.87
Each
units
Float - Horizontal Direct Load Stainless Steel 300mm -10°C +120°C 300V 300V 500 mA 10bar - -
RS Stock No. 338-9794
Mfr. Part No.MS10B
BrandCynergy3
SGD47.95
Each
units
Float - - NC PE 5m 0°C +55°C - - 1 A dc, 4 A ac 10bar - -
RS Stock No. 454-9127
Mfr. Part No.SSF28X100
BrandCynergy3
SGD173.80
Each
units
Float - Vertical Direct Load Stainless Steel 350mm -10°C +120°C - - 500 mA 40bar - -
RS Stock No. 122-8409
Mfr. Part No.LS-240-3E NO
SGD443.39
Each
units
Float - Cable SPST NO Stainless Steel 2m -40°C +80°C - - - 10bar - -
RS Stock No. 869-7536
Mfr. Part No.RSF106Y100JV
BrandCynergy3
SGD37.00
Each
units
Float - Vertical NO/NC Polyphenylene Sulfide 1m -10°C +120°C 240V 120V 600 mA - Viton -
RS Stock No. 869-7592
Mfr. Part No.RSF86YP
BrandCynergy3
SGD33.97
Each
units
Float - Horizontal NO/NC Polyphenylene Sulfide - -10°C +120°C 240V 120V 600 mA - - -
RS Stock No. 288-9344
Mfr. Part No.RSF56Y050TB
BrandCynergy3
SGD35.74
Each
units
Float - Vertical NO/NC Polyphenylene Sulfide 500mm -20°C +120°C 240V 120V 600 mA - Silicone, Viton 600 mA
RS Stock No. 756-4283
Mfr. Part No.SSF211X100H
BrandCynergy3
SGD243.25
Each
units
Float - Horizontal NO/NC Stainless Steel 1m -20°C +180°C - - 500 mA 5bar - -