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  • Order No.: 3185-0020-02-24

    Touch-Safe Small Heater Type CSK (Semi-Conductor) with PTC-Resistor

    Key Features

    • Small size
    • Ensure a minimum operating temperature
    • Prevent condensation
    • Advantages of heaters with PTC-resistor: Dynamic heating up, temperature limiting, wide voltage range

    Product Description

    Cabinet heaters are used for heating up the air inside a control cabinet. Häwa offers a wide range of cabinet heaters from 10 to 1200 W to optimize the functionality of electric and electronic components, to ensure a minimum operating temperature and for frost monitoring in case of low ambient temperatures and high humidity.

    The design of the heater supports the natural convection which results in a high air-flow of warm air

    The surface temperatures on the accessible side surfaces of the housing are kept down as a result of the heater design

    Heating element: Resistor (PTC) temperature limiting

    The heaters are designed for permanent operation

    Quick mounting: snap-on attachment to 35 mm DIN rail

    Technical Data

    • Order No.: 3185-0020-02-24
    • Nominal voltage: 24 V DC
    • Protection type: IP20 
    • Protection class: II (double insulation)
    • Operating-/storage temperature: from : -45 °C  to : +70 °C 
    • Operating/storage humidity: max. 90% relative humidity (non-condensing)
    • Surface temperature: at 20°C (68° F) ambient temperature (except upper grid): <+85° C (185° F)
    • Heater output: 20 W
    • Control system: without
    • Attachment: clip for snap-on attachment
    • Power supply: 3-pin 2.5 mm2 terminal, max. tightening torque 0.8 Nm
    • Fitting position: Vertical air flow direction (air outlet at top/connection at bottom)
    • Heating element: PTC-resistor temperature limiting
    • Start-up current: 8 A
    • Fuse: 6.3 A (slow-blow)
    • Approvals: CE
    • Weight: 0.3 kg
    • Dimensions (WxHxD): widht : 38 mm  height : 98 mm  depth : 75 mm 
    • Surface finish: housing: black plastic, UL94 V-0
    • Type: CSK20


    • When operating PTC-heaters below AC/DC 140 V the heater output will be reduced by approx. 10%.
    • The specified heater output refers to an ambient temperature of 20° C (68° F).
    • A safety clearance of 50 to 100 mm to the adjacent components shall be observed (according to the corresponding operation manual).

    Scope of Delivery

    • 1 heater


    Temperatur Controller

    Temperatur Controller

    Storage temperature from+ 0 °C
    Storage temperature to+ 60 °C
    Small Compact Thermostat with Thumbwheel Setting Dial

    Small Compact Thermostat with Thumbwheel Setting Dial

    Control system Opened con.
    Temperature range from+ 0 °C
    Temperature range to+ 60 °C
    Electronic Hygrotherm ETF012

    Electronic Hygrotherm ETF012

    Nominal voltage 120 V up to 240 V AC/DC (min. 100 V, max. 265 V)
    Humidity setting range 50 to 90% rF
    Temperature setting range 0°C bis 60°C
    Fix-Thermostat FTO

    Fix-Thermostat FTO

    Control system Opened con.
    switch temperatur+ 5 °C
    shutdown temperature+ 15 °C
    Fix-Thermostat FTO

    Fix-Thermostat FTO

    Control system Opened con.
    switch temperatur+ 15 °C
    shutdown temperature+ 25 °C
    Printhäwa GmbH