Cable junction box cable junction boxes, cable junction box price, cable junction box cable junction box manufacturer, for a coal mine with a pigtail fiber pigtail splice or within various cable and fiber optic connectors and wiring for protection role. Supporting fiber optic cable junction box Zmjt11 with mine communications, surveillance system used, can be used for coal mining face underground, tunnel excavation, the downhill and other gas and coal dust explosion hazard environment as intrinsically safe communication with the monitoring system cable device connecting means. JHH type cable junction box Model significance For example: JHH-4; JH-- junction box; H-- intrinsically safe; 4-- port number. Cable junction box using the environment a, ambient temperature -10 ℃ - + 40 ℃; b, Relative humidity: ≤95% (+ 25 ℃ when); c, atmospheric pressure: 86-106KPa; d, environment, explosive gas and coal dust and other explosive substances; e, the environment should be non-corrosive gases; cable junction box technology requirements Rated current Rated voltage 60V 3A contact resistance of less than 0.01 ohm surface insulation resistance greater than 500 megohms insulation resistance of less than 1 × 109Ω cable junction box parameters 1 The cable access hole Configuration 2 1 pair of rubber apron 2. Line 2 hole Φ13 3. Overall dimensions 305 × 160 × 62 cable junction box for use (1) The product consists of four groups consisting of terminals in parallel with each other. 60 volt DC (2) This product can only be used for operating voltage, the use of the operating voltage of intrinsically safe circuits 3A. (3) The product of seals, the inner diameter of the flat washers, according to the cable diameter, randomly chosen during installation. (4) must be screwed tightly into the wire nut during installation, tighten the screws, ensuring reliable sealing. The product has been exported to many countries, the United States, France, Canada, Indonesia, Russia, Vietnam, Australia, South Korea, Iran, was unanimously praised by customers. Due to production batches, depending on the model, the above picture is only for reference, the details can contact our sales staff to carry out specific verification. National unity free Sales Tel: 400-086-0537