34 visiting now: 12 France France flag 8 USA USA flag 6 China China flag 6 UK UK flag 1 Vietnam Vietnam flag 1 Netherlands Netherlands flag

Highlighted Companies

  • Glisten Dental Technology (China): Glisten Dental Lab was established as a high end dental workshop in HK in 1997 by Dr Tsang.... http://www.glistendentallab.com
  • Shenzhen Dihe Electronic Co., Ltd. (China): Multilayer PCB, Metal core PCB, fast PCB and middle-small batch PCB with multi-species,... http://www.szdh-pcb.com
  • TAJ INTERNATIONAL FOR INSULATIONS (Saudi Arabia): Taj International for Insulations factory was formed in 2010 in Saudi Arabia eastern... http://taj-int.net/


  • Kjj148 Mine Explosion Proof Switchboard - China

    price: contact company for price

    KJJ148 Mine Explosion proof Switchboard Product Summarize

    KJJ148 flameproof and intrinsically safe network switch (hereinafter referred to as 'explosion-proof switch'), the converter is flameproof and intrinsically safe, explosion-proof mark Exd [ib] I, used in coal with gas and dust explosion hazardous locations.

    The Explosion proof Switchboard allows installation in a coal mine gas explosion in hazardous dust and gas environment, used to make the downhole devices can be connected to the switch for data exchange with the ground, remote control and remote monitoring. Ground computer can connect to the switch of the downhole device management, network computers through a switch associated equipment for downhole data acquisition information and control management.

    KJJ148 Mine Explosion proof Switchboard Working Conditions

    Ambient temperature: 0 ℃ ~ +40 ℃;

    Relative Humidity <95%(+25℃);

    Atmospheric pressure 80KPa~106 KPa;

    Mechanical environment: No significant vibration and shock of the occasion.

    Don't in the strong electromagnetic field or the use of mobile phone electromagnetic shielding environment, available in methane and coal dust explosive used in the environment of coal mine, but shall not be used in the case of containing corrosive gas.

    KJJ148 Mine Explosion proof Switchboard Model Meaning

    KJ: mine monitoring and control products or equipment

    J: Switch

    148: Registration No.

    KJJ148 Mine Explosion proof Switchboard Parameters

    Power supply

    a)Input voltage 127V/220V/380V/660VAC/50HZ (transformer tap mode input)

    b)Enter Apparent Power (VA): ≤ 150

    Standby Power

    a)Use HYS1272 12V/7.2AH two lead-acid batteries in series

    b) charging voltage: 18V ~ 28V

    c)Discharge cut-off voltage: ≥ 18V

    d)Conversion time: ≤ 1S

    e)working time: ≥ 2h

    Ethernet optical ports

    a) transfer port: 2

    b) transmission mode: TCP / IP Ethernet optical signal transmission

    c) Transfer rate: 1000M bit / s

    d) Connection: LC switch

    e) Transmit Power: -14 ~ 1dBm (wavelength: singlemode 1310nm)

    f) Receiving sensitivity:-24dBm

    CAN signal transmission interface

    a)transfer port Quantity: 1 channel

    b)Transmission mode: master-slave, half-duplex, unipolar

    c)Transfer rate: 5Kbps

    d)Maximum transmission distance: 5km (use MHY32, MHYVRP, MHYVR cable, wire cross-sectional area of not less than 1.5mm2)

    e)the signal peak voltage: 1 ~ 5V

    KJJ148 Mine Explosion proof Switchboard Product Function

    1, with Ethernet optical signals between the redundant ring network data exchange capabilities;

    2, with optical and electrical interfaces between the data exchange capabilities;

    3, with the electrical interface between the bi-directional data transfer capabilities;

    4, with a CAN bus transmission function;

    5, with RS484 bus transfer functions.


    Company Contact:


    • Phone: 008618653763332

    • Address: No.69 Huoju Road, New & High Zone, Jining, China

    • Email: Email


    Published date: October 8, 2013 -

    • Business Description: Shandong China Coal Industrial&Mining Supplies Group Co.,Ltd

      (hereinafter referred to as china coal) is a group company, which is a

      collection of e commerce, machinery manufacturing, software, research

      and development, modern logistics of large diversified industrial group.

      The group has 100 million yuan registered capital , with more than 1100

      employees.

      China coal is a professional manufacturing base of mines support equipment, transport equipment, lifting equipment, spray equipment, drilling equipment, ventilation equipment, lifting equipment and other products, as well as research and development new product and mine construction products with advanced high technology.

      In order to development of international trade , expansion overseas market, china coal established international trade branch company and import and export branch company. China coal actively expand foreign trade channels based on a good market image, brand, modern information platforms and capital protection. Based on the trading diversification strategy, the group established a chain loop trading system which is with import and export trade of the mining equipment as a core, the resources and market as the elements. China coal also formed a overseas sales team, that covers English, French, German, Portugal, Italy, Russian, Korean, Japanese, Arabic, and more than 10 language professionals to explore broader international markets on the Internet. At present, the group signed up for "china coal" trademark in the European Union, United States, Russia, United Kingdom, Taiwan, Macao, Singapore, Indonesia, Israel, and other countries, also get the right to use the trademark of the United Kingdom and Taiwan. Hundreds kinds of products such as tunnel boring machine, coal cutter machine etc. is exported more than 60 countries and regions which are the United States, Australia, Germany, Russia, Spain, France, Canada, United Kingdom, Italy, Portugal, Georgia, Austria, and Colombia. China coal is to establish long term, broader economic and trade cooperation and strategic partnership with a number of large state owned enterprises and customers, and won the unanimous approval of them.

      China coal has succeeded in passing a number of certification systems which are ISO9001, 2008 quality management system certification, United States ANAB management system certification, United Kingdom international authoritative certification bodies UKAS quality management system certification, SGS certification (made in China), Alibaba GIS certification. She has also obtained a variety of honor which are China excellent enterprise of mechanical industry, China equipment manufacturing operation top 10 enterprises, national reputation for quality assured supplier, China credit certification system demonstration unit, national quality trustworthy product for conformity assessment, national consumer satisfaction units, China AAA level quality trustworthy enterprise and Chinese e commerce company credit rating AAA level credit Enterprise.

    Related listings



    • Mine Mobile Transformer Substation Explosion Proof Vacuum Switch
      Mine Mobile Transformer Substation Explosion Proof Vacuum Switch
      Switch Gear / Board - Shandong China Coal Industry & Mining Group Co.,Lt - China - October 8, 2013 - contact company for price

      Product Introduction 1.The advanced CPU technology is adopted in the protector, which has enhanced the independence of individual parts of function and the practicability of the system.Besides, the high- resolution A/D converter and and the detection...

    • Kbz 250 1140 Coal Explosion Proof Vacuum Switch
      Kbz 250 1140 Coal Explosion Proof Vacuum Switch
      Switch Gear / Board - Shandong China Coal Industry & Mining Group Co.,Lt - China - October 8, 2013 - contact company for price

      Product Introduction It is used in coal mines for three-phase isolated neutral power supply system with AC 50Hz, rated voltage 1140V(660V) and rated current to 250A, 350A, It can be used as master switch or sub-switch of power distribution system or ...

    • Disconnect Switch Model Sdb 60nf Type
      Disconnect Switch Model Sdb 60nf Type
      Switch Gear / Board - Zhejiang Dixsen Electrical Co., Ltd. - China - September 23, 2013 - contact company for price

      General: Air Conditioning Disconnects is a disconnect located between a load- center (Distribution Panel) and Air Conditioner, it't provide a visible disconnecting when performing maintenance. Features: 1. NEMA 3R outdoor enclosure offered in metalli...



    Safe Trade Tips

    • Ask for business references and check them
    • Use a payment method that offers better protection for all such as Letters of credit and verified professional escrow services. Avoid payments in advance such as money transfers
    • Verify their business via their local Chamber of Commerce
    • Search the internet using their website address, their business name, their phone and fax numbers, and their email addresses to see if you can find any feedback about them.
    • Get to know more about scams to avoid: Internet Crime Complaint Center - International Financial Scams
    • This site is never involved in any transaction, and does not handle payments, shipping, guarantee transactions, provide escrow services, or offer "buyer protection" or "seller certification"