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Centralized Control System

KXJ127 Mining Explosion-proof and Intrinsically Safe Electric Control Box

The KXJ127 Mining Explosion-Proof and Intrinsically Safe Electric Control Box (hereafter referred to as the Control Box) is mainly installed at the electromechanical chamber in the coal mine, drainage pump house, belt conveyor head, temporary discharge point and other places, connected in the Ethernet of the mine, and used for data and image transmission between the ground and underground. The isolated circuit, reliable electrical protection and safety protection are arranged for input and output in the Control Box, so as to guarantee reliable operation and electrical safety of the controller. The Control Box is connected on the occasion with access to the Intranet, and can form the virtual Intranet with the remote command, so as to facilitate remote download, program download and other work of the equipment.

  • 1 Operating Voltage: 127V.AC/36V.AC/24V.AC, operating current: ≤0.5A.

    2 Input and Output Ports 

    2.1 Input Port: 8-way passive switching signal: when disconnected, the leakage resistance between two output ends shall not be less than 100kΩ. When closed, and the input current is 2mA, the output terminal voltage shall not be higher than 0.5V.

    2.2 Output Port: 6-way relay output, contact capacity: 250V/5A.AC.

    3 Function: according to the field service conditions, control state of the output port relay by setting the input port state.

    4 Display: LCD, realizing various function settings and status indication.

  • The Control Box has the direct lead-in structure, the bolt fastening structure is adopted for the main explosion-proof chamber, so as to facilitate equipment installation, adjustment and maintenance.PLC module, relay, optical couples board and other electrical components are installed at the front, the intrinsically safe power supply is installed at the left and the wiring terminal is installed at the bottom. The operation button and extra large LCD touch screen are installed at the front door panel, and the operation interface is simple and friendly. 10 compression nut lead-in devices are installed behind the main chamber, and the cable can be directly led in the main chamber.

  • a) Ambient temperature -10℃ to +40℃ (14ºF to 104ºF) 

    b) The elevation shall not exceed 2,000m 

    c) The ambient relative humidity shall not be larger than 95% (at +25℃/77ºF)

    d) In the mine shaft with mixture of methane and air 

    e) At the place without significant vibration or impact 

    f) At the place without dropped water 

    g). Horizontal installation (the inclination shall not exceed 15°)


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  • NameKai Wang
  • AddressHuaxin Industrial Park, Yangquan, Shanxi, China 045000
  • PhoneChina:15234310529,Canada:+1 3067132408
  • E-mailkwang@hxindustrial.com
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Your local Huaxin Service Team

  • NameKai Wang
  • AddressHuaxin Industrial Park, Yangquan, Shanxi, China 045000
  • PhoneChina:15234310529,Canada:+1 3067132408
  • E-mailkwang@hxindustrial.com
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Your local Huaxin Cooperation Team

  • NameKai Wang
  • AddressHuaxin Industrial Park, Yangquan, Shanxi, China 045000
  • PhoneChina:15234310529, Canada:+1 3067132408
  • E-mailkwang@hxindustrial.com
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