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Black PTC Resistor / Smart PTC Thermistor For Degaussing Circuit , Degausser

Categories PTC Thermistor
Place of Origin: Dongguan,Guangdong,China
Brand Name: UCHI
Certification: SGS,UL.VDE
Model Number: PTCR
MOQ: 5000PCS
Price: Negotiable
Packaging Details: Bulk/foam
Delivery Time: 7 working days
Payment Terms: T/T,Paypal,Western Union,Money gram
Supply Ability: 600,000,000PCS Per Month
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    Black PTC Resistor / Smart PTC Thermistor For Degaussing Circuit , Degausser

    Black PTC Resistor / Smart PTC Thermistor For Degaussing Circuit , Degausser


    Quick Details


    Single phase induction motors (e.g in compressors for refrigerators and air conditioners) can effectively be started when an auxiliary coil is used in the starting phase. The auxiliary coil is cut off from the circuit after the starting phase. For this purpose, PTC thermistor is employed.
    When high voltage is applied to the PTC thermistor, the high current causes PTC thermistor to heat up and eventualy the resistance to increase. A high current flows initially (starting phase ) and then decreases in relation to the increase in resistance. After the starting phase, a low residual current flows the auxiliary coil.


    Descirption


    PTCR Motor start packages can be economical solid state torque assist for heat pumps, room air, commercial and residential air conditioning and refrigeration systems. PTC thermistors can be used to protect the auxiliary starter winding of induction motors or single phase motors. Compared to the alternative start capacitor and relay, PTCR Motor start devices save several wires, occupy less panel space, mount more easily, and cost less.


    Application


    Single-phase motorstart assist in refrigerator systems, aircondtioning systems, heat-pumps, small compressors.
    Inrush current generation.


    Specification


    PTCR Motor starter Operating Principles

    Single phase induction motors (e.g in compressors for refrigerators and air conditioners) can effectively be started when an auxiliary coil is used in the starting phase. The auxiliary coil is cut off from the circuit after the starting phase. For this purpose, PTC thermistor is employed.
    When high voltage is applied to the PTC thermistor, the high current causes PTC thermistor to heat up and eventualy the resistance to increase. A high current flows initially (starting phase ) and then decreases in relation to the increase in resistance. After the starting phase, a low residual current flows the auxiliary coil.

    PTC Thermistor motor starter Simple starter circuit for single phase AC motors

    Simple starter circuit of PTC thermistor mortor starter usded in single phase AC motors.

    The PTC thermistor is used for delaying the switch-off of the starter auxiliary winding (after the motor has accelerated) to protect the winding from damage.


    PTC Thermistor motor starter current vs switch time

    PTC thermistor motor starter charcteristics resistance temperature current

    PTC thermistor motor starter pellet construction


    PTC motor starter pellets (disk) data sheet

    Nominal Resistance
    R25
    (ohm)

    Max. Voltage
    (V)

    Max. Current
    (A)

    Starting Time
    (Seconds)

    Power Consumption
    (W)

    Recovery Time
    (Seconds)

    Coil Resistance
    (ohm)

    Switching Temperature
    (Centigrade)

    Diameter
    (mm)

    Thickness

    (mm)

    4.7 ohm

    180V

    12A

    0.5-2.5S

    3.5W

    100S

    10 ohm

    120C

    19.5+-1.0
    mm

    2.5+-0.2
    mm

    6.8 ohm

    200V

    10A

    0.2-1.5S

    3.5W

    100S

    25 ohm

    15 ohm

    350V

    8A

    0.2-1.5S

    3.0W

    100S

    30 ohm

    22 ohm

    350V

    7A

    0.2-1.5S

    3.0W

    85S

    30 ohm

    33 ohm

    350V

    6A

    0.2-1.5S

    3.0W

    85S

    55 ohm

    47 ohm

    400V

    5A

    0.2-1.5S

    3.0W

    75S

    55 ohm

    4.7 ohm

    180V

    12A

    0.2-1.3S

    3.3W

    85S

    10 ohm

    120C

    16+-0.5
    mm

    2.5+-0.2
    mm

    6.8 ohm

    180V

    10A

    0.2-1.2S

    3.3W

    90S

    10 ohm

    15 ohm

    350V

    8A

    0.2-1.2S

    2.8W

    100S

    30 ohm

    22 ohm

    350V

    7A

    0.2-1.0S

    2.8W

    85S

    30 ohm

    33 ohm

    350V

    6A

    0.2-1.0S

    2.8W

    85S

    30 ohm

    47 ohm

    350V

    5A

    0.2-1.0S

    2.8W

    80S

    30 ohm

    PTC Thermistor Motor Starter Reliability Data

    Test

    Standard

    Test conditions

    |ΔR25/R25|

    Switching test at room temperature

    IEC 60738-1

    Imax Vmax Number of cycles: 10000

    <25%

    Rapid change of temperature in air

    IEC600628-2-14, Test Na

    T=TLCT, T=TUCT Number of cycles: 5 T:30min

    <20%

    Endurance at max. operating temperature and max. operating voltage

    IEC 60738-1

    Ambient temperature: +60C Maximum Operating Voltage Current limited to Imax. Time: 24 hours

    <25%

    Storage in damp heat

    IEC 600628-2-3

    Temperature of air: 40C Relative humidity of air: 93% Duration: 56 days

    <20%

    PTC Thermistor Motor Starter Application Examples

    PTC thermistor motor starter for RSI CSIR CRS PSC motors
    Starting Circuit with PTC Thermistor Motor Starter


    Competitive Advantage:


    1. Factory supply directly

    2. Completed certificates such as UL,VDE,SGS,etc and high quality available

    3. Quick delivery

    4. Best after-sales services

    5. OEM & ODM available



    Quality Black PTC Resistor / Smart PTC Thermistor For Degaussing Circuit , Degausser for sale
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