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GTH-12M Mini Motor Thermal Overload Relay , Overload Protection Relay

Categories Thermal Overload Relay
Brand Name: KRIPAL
Model Number: UKH-12M
Certification: CE
Place of Origin: China
MOQ: 500 pcs
Price: negotiable
Payment Terms: T/T, L/C
Supply Ability: 30000 pcs per month
Delivery Time: 20 days and depends on ordering quantity
Packaging Details: Each unit packed in a individual box
Pins: 3
Type: thermal overload
Protection: overload
Usage: Usually with ac contactor
Reset: manual / automatic
Auxiliary: 1NO+1NC
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    GTH-12M Mini Motor Thermal Overload Relay , Overload Protection Relay


    GTH-12M Mini Motor Thermal Overload Relay , Overload Protection Relay


    Thermal overload relays are protective devices. They are designed to cut power if the motor draws too much

    current for an extended period of time. To accomplish this, thermal overload relays contain a normally closed

    (NC) relay. When excessive current flows through the motor circuit, the relay opens due to increased motor

    temperature, relay temperature, or sensed overload current, depending on the relay type.


    These overload relays are similar to circuit breakers in construction and use, but most circuit breakers differ

    in that they interrupt the circuit if overload occurs even for an instant. Thermal overload relays are conversely

    designed to measure a motor's heating profile; therefore, overload must occur for an extended period before

    the circuit is interrupted.


    Characteristics:


    1. Be mounted with contactor UKC(D)1-6M/9M/12M directly


    3. Small size: 44mm width


    4. 1NO+1NC tripping contact


    5. Class 10A tripping standard


    6. Phase-failure protection type: UKK


    7. Sstandard type: UKH


    8. Applicable ambient temperature: -5 to 40 degree


    9. Manual/automatic reset


    10 Ewmote reset is optional


    11. Design of free trip


    Specifications:


    Motion Characteristic: Three-phase Balance Motion Time


    No

    Times of the setting current

    Motion time

    Start condition

    Ambient temperature

    1

    1.05

    >2h

    Cold state

    20±5oC

    2

    1.2

    <2h

    Heat state(Following the No.1 test)

    3

    1.5

    <4min

    4

    7.2

    10A

    2s< Tp≤10s

    ≤63A

    Cold state

    10

    4s< Tp≤10s

    >63A


    Phase-losing Motion Characteristic


    No

    Times of the setting current

    Motion time

    Start condition

    Ambient temperature

    Any two phases

    Another phase

    1

    1.0

    0.9

    >2h

    Cold state

    20±5oC

    2

    1.15

    0

    <2h

    Heat state(Following the No.1 test)


    Applications:


    UKH series thermal overload relay can be used in the circuit of 50Hz or 60Hz, rated insulation voltage 660V,

    rated current 0.1-93A for protecting the phase break when the electric motor is overload. The relay has different mechanism and temperature compensation& can be plunged in UKC1 series AC contactor.


    Current Range:


    Quality GTH-12M Mini Motor Thermal Overload Relay , Overload Protection Relay for sale
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