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QZJ400A Normally Open DC Contactor

Normally open DC contactors have high current carrying capacity, fast response speed and durable structure to meet the needs of today's complex electrical applications. Understanding and mastering the installation and maintenance characteristics of normally open DC contactors is an important part of electrical engineers and technicians to improve work efficiency and ensure stable system operation.

    FEATURES

    Normally open DC contactors not only improve the overall performance of the system, but also play a positive role in energy conservation and environmental protection. For example, in solar and wind energy systems, contactors are responsible for efficient power management, which is crucial. In addition, contactors are also widely used in control systems such as traffic lights, demonstrating their versatility and adaptability in different fields.

    SAYOON MODEL IMPLICATION

    QZJ

    400A

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    1

    Product type                

    2

    Rated current                

    3

    Auxiliary switch: None-Without auxiliary switch; S-With auxiliary switch

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    Mounting bracket type: M-Horizontal (default)  

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    Other function codes  

    6

    Other special functions: V-With capacitive load  

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    Coil rated voltage: 12V, 24V, 36V, 48V, 60V, 72V etc.

    Uses

    This product have one normally open contact, for 5G cabinet, telecommunication equipment, engineering machinery, car batteries, electric forklift trucks, trains, ships, electronic control systems such as uninterruptible power supply.

    Technical Parameters:  (Version 1.29)

     SAYOON Product Type

     QZJ400A

     Contact form

     1 NO

     Coil Rated voltage (DC V)

     6V,12V,24V,36V,48V,60V,72V,96V etc.

     Contact voltage (DC V)

     ≤150V

     Rated load current of contact 48V circuit (A)

     400A

     Rate load current of contact circuit

     ≯80mV

     The cooling pull-in voltage at (20±5)℃ (V)

     ≯70%

     The cooling drop-out voltage at (20±5)℃ (V)

     ≯50%,≮5%

     Working voltage range of 40℃ coil

     0.8-1.2Us

     Drop-out time (n/o contacts to open)

     25ms

     Pull-in time (n/o contacts to close)

     10ms

     Maximum bounce time for contact connection

     10ms

     Maximum bounce time for contact disconnection

     3ms

     Insulation resistance

     20MΩ

     Electric strength to resist

     50Hz/60Hz 1000VAC 1minute

     Typical fault currents which can be ruptured

     1500A/5ms at 48V DC

     Coil power (W)

     Start: 35-65, Keep: 3-8

     Temperature rise of coil (K)

     ≤40

     Temperature rise on outgoing terminal (K)

     ≤65

     Electrical life

     20,000 times

     Mechanical life

     300,000 times

     Work specification

     Continuous

     Contact material

     Ag alloy

     Load terminal type

     M10 Screw

     Coil terminal type

     M3 Screw


    Note:As regarding to the different using environments of customers which requires different focus of the functions,and in order to improve the comprehensive properties of our products,sayoon may adjust the coil parameters,temperature rise and so on. The above parameters are for reference only, For details, please refer to the guidelines for selection and use of the SAYOON DC contactor.

    Load Characteristic Curve

    • HEV400 HV DC Contactor detail (3)
    • HEV400 HV DC Contactor detail (2)

    Installation Diagram

    qzj400a

    Wiring Diagram

    szj-10_e

    Temperature Curve

    xqws-szj200a

    Mechanical Ability And Use Of The Environment

     Contact lead M10 tightening torque (N.m)

     ≯20.5 appropriate

     Coil lead M3 tightening torque (N.m)

     ≯0.8 appropriate

     Ambient temperature

     -25~+70℃

     Relative humidity

     +20℃ 98%

     Vibration freq. atthe fixed position

     3G, 1~50Hz amplitude 0.5mm

     Concussion

     (60~100) time/minute、acceleration≤4g

     Altitude

     2000m

     Installation direction

     Random

     International Protection

     IP40 (According IEC60947)

    Order Instruction

     SAYOON Product Type

     QZJ400A

     U.N.W.

     602g

     Mounting bracket type

     None - M Horizontal (default)


    When ordering, please state the following: name, full model, control coil voltage specification, installation frame type, whether with auxiliary contact, order quantity. For example: DC Contactor QZJ400A/24V 100pcs, indicating the load rated current 400A, without auxiliary contact, default mounting bracket, coil control voltage 24V purchase 100pcs. Special voltage specification products, such as user needs can be special order.

    certificate

    • CE2
      CCC
    • CCC
      CE
    • RoHS
      RoHS
    • FCC
      ISO9001

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