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ESMFS pp material Top-mounted and side-mounted liquid tank Magnetic float switch for 10w/50w

PP Float Switch (Polypropylene Float Switch) is a liquid level control sensor with a simple structure, low cost, corrosion resistance, and durability, working based on the principle of buoyancy and reed switch. It is widely used for liquid level alarms and automatic control of corrosive liquids, clean water, wastewater, and oils.
Typical application scenarios:
Industrial: electroplating tanks, pickling tanks, chemical storage tanks, environmental sewage treatment
Home appliances: humidifiers, dehumidifiers, water dispensers, temperature control machines, water heaters
Residential: fish tanks, water towers, automatic start/stop of water pumps, liquid level alarms

    Working Principle

    It is mainly based on Archimedes' buoyancy principle. When the liquid level changes, the float moves up or down with the liquid level, driving the switch through lever transmission or magnetic coupling to achieve the opening and closing of the circuit. Among them, the mechanical contact float switch directly drives the mechanical contacts to open or close through a lever; the magnetic float switch uses the magnetic force between the magnet inside the float and the reed switch to control the closing and opening of the reed switch.

    Product Features

    1. Corrosion resistance: PP material has good acid and alkali resistance, suitable for various chemical liquid environments.
    2. Wide temperature range: PP float switches can generally operate normally within a temperature range of -20℃ to 80℃, and some products may have higher temperature resistance.
    3. Lightweight and durable: PP material is light, easy to install and maintain, and has certain mechanical strength, capable of withstanding some external impact.
    4. Passive signal output: The float switch itself does not require a power supply, it directly triggers the input signal of controllers such as PLC through the on/off status of the reed switch, simplifying external circuit design.
    5. Various installation forms: PP float switches support side, inline, top/bottom, hanging, and other installation methods, suitable for various types of containers.
    6. High protection level: The junction box usually has a protection level of IP65 or above, effectively preventing dust and moisture ingress, ensuring long-term stable operation of the equipment.

    Product detail

    ESMFS (4)ESMFS- (4)ESMFS- (1)ESMFS- (3)

    Technical Specifications

    TYPES

    Low pressure

    high pressure

    Maximum power

    10W

    50W

    Maximum switching voltage

    100VDC

    220VDC

    Maximum switching current

    0.5A

    1.5A

    Minimum collapse voltage

    220VDC

    300VDC

    Maximum load current

    1A

    3A

    Maximum contact resistance

    100mΩ

    100mΩ

    temperature range

    -20~+80

    -20~+80

    Float material

    P.P

    P.P

    Card spring material

    P.P

    P.P

    Wiring Definition

    This is a paragraph

    1. Black, White - Power
    2. Green - Ground
    3. Yellow - Common (COM), Blue - Normally Closed (NC), Red - Normally Open (NO)

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