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    Float Switches

    What is a Float Switch?

    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.

    How does a Float Switch work?

    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 switch sits on top of a water level and the changing fluid level will cause the reed change to work (for instance close or open) at a specific level. The internal mechanical switch opens or closes the electrical circuit with gravity which enables it to turn equipment on and off such as a water pump.

    What materials are float switches made of?

    • 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

    • Highly Flexible
    • High Mechanical Load Rating
    • Insensitive to Turbulence
    • Shock and Rupture Proof
    • WRAS approvals

    Applications of Float Switches

    Float Switches can be used in several situations, some of which include:

    • Sump Pits
    • Fuel Tanks
    • Coolant Tanks
    • Oil/Water Separators
    • Wastewater and Sewage Treatment

    Browse the broad range of Float Switches RS Group has to offer and order today for next day delivery

    652 產品顯示為 Float Switches

    HK$6,383.50
    Delta-Mobrey
    Float Level Switch
    Liquid Level Alarm and Pump Control
    Side Mount
    SPST
    Aluminium Alloy
    -
    -
    +210°C
    440V
    240V
    5 A
    33.8bar
    Non-Asbestos Sheet
    -
    -
    HK$7,580.30
    Delta-Mobrey
    Float Level Switch
    Liquid Level Alarm and Pump Control
    Side Mount
    SPST
    Aluminium Bronze
    -
    -
    +210°C
    440V
    240V
    5 A
    18bar
    Non-Asbestos Sheet
    ATEX
    -
    HK$264.00
    Sensata / Cynergy3
    Float
    -
    Horizontal External
    NO/NC
    Polyphenylene Sulfide
    500mm
    -10°C
    +120°C
    240V
    120V
    600 mA
    -
    Viton
    -
    RSF70
    • RS庫存編號 224-7393
    • 製造零件編號 LVFSA1D10
    HK$740.00
    Lovato
    Float
    -
    -
    Relay
    Polypropylene
    10m
    -
    +50°C
    250V
    -
    -
    2bar
    -
    -
    -
    HK$1,331.10
    ATMI
    Float
    Liquid Level Alarm and Pump Controller
    Cable Mount
    SPDT
    Copolymer Polypropylene
    20m
    -40°C
    +70°C
    250V
    125V
    -
    2bar
    -
    -
    -
    HK$953.50
    ATMI
    Float
    Liquid Level Alarm and Pump Controller
    Cable Mount
    SPDT
    Copolymer Polypropylene
    10m
    -40°C
    +70°C
    250V
    125V
    -
    2bar
    -
    -
    -
    HK$688.90
    ATMI
    Float
    Waste Water
    Cable Mount
    SPDT
    Copolymer Polypropylene
    5m
    -40°C
    +85°C
    250V
    125V
    -
    5.5bar
    -
    -
    -
    HK$3,048.80
    Sensata / Cynergy3
    Float
    Aggressive Liquids, Hygienic Applications
    Vertical
    SPST NC
    316L Stainless Steel
    164mm
    -
    -
    200V
    120V
    -
    -
    -
    -
    -
    HK$811.80
    ATMI
    Float
    Liquid Level Alarm and Pump Controller
    Cable Mount
    SPDT
    Copolymer Polypropylene
    20m
    -40°C
    +85°C
    400V
    250V
    -
    3.5bar
    -
    -
    -
    • RS庫存編號 208-5471
    • 製造零件編號 BIPSTOPASTPNEO5M
    HK$1,283.02
    ATMI
    Float
    Liquid Level Alarm and Pump Controller
    Cable Mount
    SPDT
    ABS
    5m
    -40°C
    +85°C
    250V
    125V
    -
    3.5bar
    -
    -
    -
    HK$633.60
    Finder
    Float
    Liquid
    Wall Mount
    -
    Polypropylene
    2m
    -
    -
    250V
    30V
    10 A
    -
    -
    -
    72
    HK$186.00
    Sensata / Cynergy3
    Float
    -
    Horizontal Internal
    NO/NC
    Nylon
    1m
    -20°C
    +75°C
    240V
    120V
    600 mA
    -
    Nitrile
    -
    RSF40
    HK$1,458.20
    Sensata / Cynergy3
    Float
    -
    -
    SPNO
    PE
    5m
    0°C
    +55°C
    250V
    110V
    1 A dc, 4 A ac
    10bar
    -
    -
    LM
    HK$227.30
    Sensata / Cynergy3
    Float
    -
    Horizontal Internal
    SPNO
    Polyphenylene Sulfide
    500mm
    -10°C
    +120°C
    240V
    120V
    600 mA
    -
    Viton
    -
    RSF40
    HK$1,525.60
    Endress+Hauser
    Float Switch
    Point Level Detection
    Wall Mount
    SPDT
    Polypropylene
    5m
    -
    -
    250V
    150V
    -
    -
    -
    -
    Liquifloat FTS20
    HK$1,703.80
    Sensata / Cynergy3
    Float
    Sewage, Turbulent water
    Cable Mount
    Direct Load
    PE
    5m
    0°C
    +55°C
    250V
    110V
    1 A dc, 4 A ac
    10bar
    -
    -
    FFSMC
    HK$814.60
    Gems Sensors
    Float
    -
    Horizontal, Vertical
    Relay
    Stainless Steel
    1m
    -40°C
    +150°C
    -
    -
    -
    20bar
    -
    -
    -
    HK$3,899.30
    Sensata / Cynergy3
    Float
    -
    Horizontal
    SPDT
    Aluminium
    -
    0°C
    +100°C
    250V
    120V
    5 A
    20bar
    -
    -
    SH-3
    HK$366.50
    Sensata / Cynergy3
    Float
    -
    Vertical
    NO/NC
    Polypropylene
    1m
    -20°C
    +100°C
    -
    -
    600 mA
    -
    Nitrile
    -
    RSF50
    HK$629.50
    Sensata / Cynergy3
    Float
    -
    Vertical
    Direct Load
    Polyphenylene Sulfide
    1.5m
    -20°C
    +75°C
    240V
    120V
    600 mA
    -
    -
    -
    RSF64
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