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庫存編號 869-7573
製造零件編號RSF46YFP
BrandCynergy3
HK$160.40
單位
Float - Horizontal NO/NC Polyphenylene Sulfide - -10°C +120°C 240V 120V 600 mA - Nitrile -
RS庫存編號 338-9750
製造零件編號RSF76Y100RV
BrandCynergy3
HK$185.79
單位
Float - Horizontal External NO/NC Polyphenylene Sulfide 1m -10°C +105°C - - 600 mA - Viton -
RS庫存編號 174-8359
製造零件編號LLF44H100RF
BrandCynergy3
HK$234.35
單位
Float - Horizontal Internal SPNO Polypropylene 1m -20°C +100°C 300V 300V 1 A - Nitrile 1 A
RS庫存編號 124-2562
製造零件編號RSF47H100GF/RS
BrandCynergy3
HK$420.42
單位
Float - Horizontal NO/NC Polyvinylidene Fluoride 1m -10°C +105°C 300V 300V 1 A - Nitrile -
RS庫存編號 869-7615
製造零件編號SSF67B25B75
BrandCynergy3
HK$1,948.69
單位
Float - Vertical NO/NC Stainless Steel 1m -20°C +120°C 250V 120V 600 mA 10bar Nitrile -
RS庫存編號 122-8408
製造零件編號090-0021
HK$1,264.12
單位
Float - Cable SPST NC Stainless Steel 2m -40°C +80°C - - - 10bar - -
RS庫存編號 124-2568
製造零件編號RSF47YGP/RS
BrandCynergy3
HK$316.66
單位
Float - Horizontal NO/NC Polyvinylidene Fluoride - -10°C +105°C 240V 120V 600 mA - Viton -
RS庫存編號 780-0251
製造零件編號SSF67A50A250PM12
BrandCynergy3
HK$1,882.51
單位
Float - Vertical 2NO Stainless Steel - -20°C +135°C - - 600 mA 10bar Nitrile -
RS庫存編號 780-0217
製造零件編號SSF67A25B75PM12
BrandCynergy3
HK$1,745.63
單位
Float - Vertical NO/NC Stainless Steel - -20°C +135°C - - 600 mA 10bar Nitrile -
RS庫存編號 124-2587
製造零件編號RSF87YP/RS
BrandCynergy3
HK$293.31
單位
Float - Horizontal NO/NC Polyvinylidene Fluoride - -10°C +105°C 240V 120V 600 mA - - -
RS庫存編號 174-8357
製造零件編號LLF43H100RF
BrandCynergy3
HK$221.91
單位
Float - Horizontal Internal SPNO Nylon 1m -20°C +75°C 300V 300V 1 A - Nitrile 1 A
RS庫存編號 756-4172
製造零件編號SSV66A141S1GP
BrandCynergy3
HK$1,061.98
單位
Float - Vertical NO/NC Stainless Steel 1m - - - - 500 mA 30bar - -
RS庫存編號 756-4309
製造零件編號LITTLE-EX-20M
BrandCynergy3
HK$2,352.52
單位
Float - Horizontal, Vertical NO/NC PE 20m 0°C +55°C - - 21.4 mA 10bar - -
RS庫存編號 124-2585
製造零件編號RSF87H100G/RS
BrandCynergy3
HK$336.79
單位
Float - Horizontal NO/NC Polyvinylidene Fluoride 1m -10°C +105°C 300V 300V 1 A - - -
RS庫存編號 725-9877
製造零件編號RSF86H050T
BrandCynergy3
HK$226.97
單位
Float - Horizontal External NO/NC Polyphenylene Sulfide 1m -10°C +120°C - - 600 mA - - -
RS庫存編號 174-8381
製造零件編號LLF48YFP
BrandCynergy3
HK$174.42
單位
Float - Horizontal Internal SPNO Polypropylene - -20°C +100°C 240V 120V 600 mA - Nitrile 0.6 A
RS庫存編號 124-2559
製造零件編號RSF104H100JN/RS
BrandCynergy3
HK$185.32
單位
Float - Vertical NO/NC Polypropylene 1m -20°C +100°C 300V 300V 1 A - Nitrile -
RS庫存編號 174-8378
製造零件編號LLF47YGP
BrandCynergy3
HK$365.01
單位
Float - Horizontal Internal SPNO Polyvinylidene Fluoride - -10°C +105°C 240V 120V 600 mA - Viton 0.6 A
RS庫存編號 725-9833
製造零件編號RSF43H100RF
BrandCynergy3
HK$180.18
單位
Float - Horizontal Internal NO/NC Nylon 1m -20°C +75°C - - 600 mA - Nitrile -
RS庫存編號 725-9956
製造零件編號LLF59Y100JC
BrandCynergy3
HK$302.24
單位
Float - - NO - - - - - - - - - -