Ukk Junction Boxes' Terminal Structure In Cable Connection Systems Offers Compatibility With Various Conductors.

In power distribution systems, the convergence and distribution of multiple cables require reliable connection devices to ensure electrical performance and installation efficiency. The power distribution block 600v provides standardized connection solutions for conductors of different cross-sections through modular terminal blocks and a protective housing structure. This product design stems from the practical needs of industrial power distribution for wiring density and ease of maintenance.

Terminal Structure Adaptability to Conductors:

The power distribution terminal block features internally configured spring-clamped terminals that can accommodate conductors ranging from 0.5-6 mm² in a single port. The copper busbars are tin-plated, with a contact surface roughness controlled to within Ra0.8, forming multi-point contact with the conductor's copper core, resulting in a stable contact resistance below 5 milliohms. When a conductor is inserted into the terminal, the V-shaped spring generates a clamping force of 12-18 Newtons. This force range is calculated to penetrate the oxide layer on the conductor surface to establish a metal-to-metal contact without causing plastic deformation of the thin conductor core.

The distribution terminal block's terminal blocks are arranged according to DIN standard spacing, with a center-to-center distance of 6 mm or 8 mm between adjacent terminals. Transparent marking strips clearly indicate the circuit number. When the distribution cabinet needs to branch multiple lines from the main cable, the din rail power distribution connects one incoming terminal with multiple outgoing terminals through the internal copper busbar to form a parallel connection. This structure replaces the traditional crimp lug and bolt connection method, reducing the assembly time of a single branch point from 8 minutes to 2 minutes.