JHH-2-3-4 series mining junction box

JHH-2-3-4 series mining junction box

This product can be matched with cables used in coal mine communication and monitoring systems, and can be used in gas, coal dust and explosion hazardous environments such as underground mining faces, tunnel chambers, and up and down mountains. It serves as a cable connection device for intrinsically safe communication and monitoring system equipment.

JHH-2-3-4 series mining junction boxUsage environment

a、 Environmental temperature -10 ℃ -+40 ℃;

b、 Relative temperature: ≤ 95% (at+25 ℃);

c、 Atmospheric pressure: 86-106KPa;

d、 There are explosive gases and coal dust and other explosive substances in the environment;

e、 There should be no corrosive gases in the environment

JHH-2-3-4 series mining junction boxinstructions

(1) This product consists of 4 sets of parallel connection terminals. Each group consists of 3 pairs of wires, totaling 12 pairs. （JHH-4）

(2) This product can only be used on intrinsically safe circuits with a working voltage below 60 volts DC and a working voltage of 3A.

(3) The inner diameter of the sealing ring and flat gasket of this product can be selected according to the diameter of the cable used during installation.

(4) During installation, it is necessary to tighten the inlet nut, tighten the screws, and ensure reliable sealing.

JHH-2-3-4 series mining junction boxInstructions for use

(1) This product can be used for intrinsic safety communication and monitoring equipment below 60 volts. Without confirmation from the explosion-proof review authority, two intrinsic safety power sources cannot be connected simultaneously.

(2) This connector can be used in all mine areas that meet the above conditions, including mining workfaces.