Four M4 screws on the top of the conductive part allow connection of up to four branch circuit wires (2. 5 mm²), making multi-branch wiring simple and reliable. Compatible with barrier terminal strip style installations, ensuring safe and efficient low-voltage distribution. Mouser offers inventory, pricing, & datasheets for Busbar Barrier Terminal Blocks. MJ Series Busbar Support / Barrier Terminal Strip – Up to 120A, AC 660V / DC 440V The MJ series is designed for relay protection and DC control panels, rated up to AC 660V (50/60Hz) and DC 440V, supporting busbars up to 120A. So, what's the difference? A busbar. Busbars (bus bars) are integral to power distribution and serve numerous industries including automotive, industrial, and aerospace. Typical busbar applications include switchgear, panel boards. The bus bar terminals are generally used by end customers in control cabinet construction. Our website has detected that you are using an unsupported browser that will prevent you from accessing certain features.