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SEV300AH High Voltage Epoxy Resin Sealed DC Contactor

The advantage of this utility model is that it is equipped with a normally open contact and is suitable for a variety of scenarios, including charging piles, electric four-wheel vehicles, new energy vehicles, energy-saving and environmental protection systems, road traffic lighting systems, programmable power supplies and uninterruptible power supply equipment . This design not only improves the flexibility and adaptability of the equipment, but also effectively meets the needs of modern society for renewable energy and environmentally friendly technologies.

The application of normally open contacts makes the equipment safer and more reliable during use, able to respond quickly when needed, ensuring the stability of power supply. Whether in urban traffic management, lighting of public facilities, or power management in domestic and commercial environments, this utility model has demonstrated its wide applicability and importance. By integrating advanced technology, the equipment not only improves energy efficiency but also makes a positive contribution to promoting sustainable development.

    FEATURES

    Suitable for switch control of new energy electric vehicles, charging facilities, photovoltaics, wind power generation systems, automotive air conditioners, communication power supplies, UPS power supplies and other electrical control circuits. This product has the characteristics of small size, large load capacity, no sparks, long service life and simple maintenance, and is deeply loved by users.

    1. DC high-voltage power supply: The product cavity is filled with rare mixed gases and has good arc cooling capabilities.
    2. Control load capacity: Supports 30A-1000A, and the operating voltage range is 5-1000VDC.
    3. Safety: Using insulating structure, it can work in flammable or hazardous environments, and the coils and contacts will not be oxidized or polluted.
    4. Small size, light weight, low power consumption: Compared with similar products, it has obvious advantages.

    This product complies with JB2286-78, JB3974-85, YD/585-92, YD/T512-92 and other standard requirements; after inspection by the factory and relevant testing units, it conforms to the standard specifications. It has been used by users for many years to meet user needs to the greatest extent. The quality reliable.

    SAYOON MODEL IMPLICATION

    SEV

    300

    A

    H

    X

    L

    -□

    /12V

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    8

    9

    1

    Product type                

    2

    Rated current                

    3

    Circuit structure: A-Normally open; B-Normally closed; F-Normally open with one auxiliary switch (the auxiliary switch and main contact have the same structure); G-One normally closed with one auxiliary (auxiliary switch and main contact have the same structure). (for other auxiliary switch structures, add 2 or 3 numbers after the model to describe the auxiliary switch structure)

    4

    Coil type: D-Single coil; H-With coil economizer; K-Two joint magnetic retention (Single coil, Two joint self-locking); 2K-Three joint magnetic retention (Double coil, Three joint self-locking); P-Signal control

    5

    Coil outgoing mode: X-Wire (390mm); P-Spade terminals (4.8); W-Thread (M4); O-Other

    6

    Mounting bracket type: L-Vertical (default)  

    7

    None: Auxiliary switch and main contact have the same structure (default); -2: The structure of auxiliary switch and main contact is opposite; -3: Special auxiliary switch structure

    8

    Other special functions: V-With capacitive type load; N-No polarity

    9

    Coil rated voltage: 12V, 24V, 48V, 9-36V, 48-72V etc.

    USES

    The utility model has the advantages that the utility model is provided with one normally open contact, which is suitable for charging piles, electric four wheeled vehicles, new energy vehicles, energy saving and environmental protection systems, road traffic lighting systems, programmable power supply and uninterruptible power supply equipment.

    TECHNICAL PARAMETERS: (Version 2.82)

     SAYOON Product Type

     SEV300AH

     Contact form  1 NO(SPST-NO) or 1NC(SPST-NC)
     Coil Rated voltage (DC V)  12-24V,36-48V,60-72V,9-36V etc.
     Contact voltage (DC V)  5-1000V
     Contact circuit rated load current (DC-1)  300A
     Typical voltage drop across contacts per 100A  ≯80mV
     The cooling pull-in voltage at (20±5)℃ (V)  ≯70%
     The cooling drop-out voltage at (20±5)℃ (V)  ≯35%,≮5%
     Working voltage range of 40℃ coil  0.8-1.2Us
     Drop-out time (n/o contacts to open)  80ms
     Pull-in time (n/o contacts to close)  20ms
     Maximum bounce time for contact connection  10ms
     Maximum bounce time for contact disconnection  7ms
     Insulation Resistance  100MΩ
     Electric strength to resist  50Hz/60Hz 2200VAC 1minute
     Typical fault currents which can be ruptured  1000A/5ms at 48V DC
     Coil power (W)  H: Start 30-50, Keep 1.5-5
     Temperature rise of coil (K)  ≤45
     Temperature rise on outgoing terminal (K)  ≤65
     Electrical life  20,000 times
     Mechanical life  300,000 times
     Work specification  Continuous
     Contact material  Alloy
     Inrush time (max)  130ms
     Maximum switching current  2000A 320VDC (more than once)
     Maximum switching power  640kW
     Load terminal type  M8 Screw
     Coil terminal type  0.3 square silicone wire, 390mm long
     Auxiliary contact rated load (optional)  3A/30VDC
     Testing organization certification  CCC,CE,FCC,RoHS
    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

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    INSTALLATION DIAGRAM

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    WIRING DIAGRAM

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    COIL TEMPERATURE CURVE

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    MECHANICAL ABILITY and USE of the ENVIRONMENT

     Contact lead M8 tightening torque (N.m)  ≯9.0 appropriate
     Coil lead mode  Wire dipping tin (red positive and black negative)
     Ambient temperature  -40~+85℃
     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  IP68
     

    ORDER INSTRUCTION

     SAYOON Product Type

     SEV300AH

     U.N.W.  409g
     Mounting bracket type  L Vertical(default)
    When placing your order, please provide the following information: name, complete model number, control coil voltage specification, mounting frame type, whether auxiliary contacts are required and order quantity. For example: HV DC contactor SEV200AH-□-□/24V 100 pieces, which means the rated load current is 200A, no auxiliary contacts, the default installation bracket, the control coil voltage is 24V, and the purchase quantity is 100 pieces. For products with special voltage specifications, special orders can be made if necessary.

    certificate

    • CE2
      CE2
    • CCC
      CCC
    • RoHS
      RoHS
    • FCC
      FCC
    • CE
      CE
    • Having dozens of patents
      Having dozens of patents

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