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. 395-7050
Mfr. Part No.011-1900
$128.83
Each
units
Float - Horizontal, Vertical Relay Brass/NBR 1m -40°C +80°C - - - 10bar - -
RS Stock No. 122-8394
Mfr. Part No.177100
$51.59
Each
units
Float - Horizontal SPST NO/NC Versaplast 24in -40°C +148.9°C - - - 6.8bar - -
RS Stock No. 869-7609
Mfr. Part No.MS20C
BrandCynergy3
$69.61
Each
units
Float - Cable NO/NC Polypropylene 5m 0°C +55°C 250V 110V 20 A 10bar - -
RS Stock No. 122-8391
Mfr. Part No.182600
$42.97
Each
units
Float - Horizontal SPST NO/NC Versaplast 24in -40°C +121.1°C - - - 6.8bar Buna N -
RS Stock No. 122-8400
Mfr. Part No.164860
$159.92
Each
units
Float - Horizontal SPST NO/NC Stainless Steel 316 24in -40°C +107°C - - - 100psi - -
RS Stock No. 756-4283
Mfr. Part No.SSF211X100H
BrandCynergy3
$290.10
Each
units
Float - Horizontal NO/NC Stainless Steel 1m -20°C +180°C - - 500 mA 5bar - -
RS Stock No. 338-9794
Mfr. Part No.MS10B
BrandCynergy3
$60.89
Each
units
Float - - NC PE 5m 0°C +55°C - - 1 A dc, 4 A ac 10bar - -
RS Stock No. 756-4166
Mfr. Part No.SSV66A100E1GP
BrandCynergy3
$222.82
Each
units
Float - Vertical NO/NC Stainless Steel - - - - - 500 mA 20bar - -
RS Stock No. 446-2610
Mfr. Part No.SLP4AP15
BrandCynergy3
$282.02
Each
units
Float - Vertical Direct Load Stainless Steel 15m 0°C +55°C - - 600 mA 5bar - -
RS Stock No. 869-7532
Mfr. Part No.RSF104YNP
BrandCynergy3
$34.88
Each
units
Float - Vertical NO/NC Polypropylene - -20°C +100°C 240V 120V 600 mA - Nitrile -
RS Stock No. 397-0570
Mfr. Part No.RSF86Y100R
BrandCynergy3
$42.72
Each
units
Float - Horizontal NO/NC Polyphenylene Sulfide 1m -10°C +120°C - - 600 mA - Viton -
RS Stock No. 122-8415
Mfr. Part No.160405
$269.06
Each
units
Float - Vertical SPST NC Aluminium 24in -40°C +121 (Oil) °C, +82 (Water) °C - - - 250psi - -
RS Stock No. 756-4126
Mfr. Part No.SSF212X100-14G
BrandCynergy3
$211.54
Each
units
Float - Horizontal NO/NC Stainless Steel 1m - - - - 500 mA 10bar - -
RS Stock No. 859-3333
Mfr. Part No.FSH-21
$75.50
Each
units
Float Switch - Horizontal SPST Polypropylene - -20°C +80°C - - 0.5 (Switching) A, 1 (Carrying) A 57psi - -
RS Stock No. 454-9133
Mfr. Part No.SSF29X100
BrandCynergy3
$281.44
Each
units
Float - Horizontal Direct Load Stainless Steel 350mm -10°C +120°C - - 500 mA 40bar - -
RS Stock No. 379-4001
Mfr. Part No.MS10AW
BrandCynergy3
$117.76
Each
units
Float - - Direct Load PE 5m 0°C +55°C - - 1 A dc, 4 A ac 10bar - -
RS Stock No. 756-4148
Mfr. Part No.SSV66A24E34NP
BrandCynergy3
$242.75
Each
units
Float - Vertical NO/NC Stainless Steel 1m - - - - 500 mA 30bar - -
RS Stock No. 845-976
Mfr. Part No.RSF44Y050QF
BrandCynergy3
$35.96
Each
units
Float - Horizontal Internal NO/NC Polypropylene 500mm -20°C +100°C - - 600 mA - Nitrile -
RS Stock No. 756-4245
Mfr. Part No.RSF66A50A100P
BrandCynergy3
$87.31
Each
units
Float - Vertical 2NO Polyphenylene Sulfide - -10°C +85°C - - 600 mA - Nitrile -
RS Stock No. 348-8015
Mfr. Part No.RSF66A25B150
BrandCynergy3
$86.62
Each
units
Float - Vertical Direct Load Polyphenylene Sulfide - -10°C +85°C - - 600 mA - Nitrile -
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