Features: Isolation of inlet lines and branch lines, the internal wiring is easy to identify, convenient wiring. Integrated brass conductor, which has better conductivity, greater current carrying capacity. The bottom of the shell adopts the snap type installation, which is fast and convenient to fix the junction box to the guide rail. Transparent visual cover is easy to observe, more convenient for operation and checking when wiring maintenance. Safety flame retardant and wear-resistant materials, high quality screw fastening head, convenient and has longer service life. The product is generally used for power distribution cabinet, distribution box, and various high voltage cabinet units, etc.