Bus material: Brass, nickel-plated.Base and cover material: Nylon, fibreglass reinforced. Dimensions (L x W x H): 139 x 70 x 46 mm. Busbar with the current (300 A) with M8 (5/16 inch) connection bolts (also available in M10). Module box design for easy wiring configurations. Base and housing made of fibreglass reinforced nylon ensure great mechanical strength and durability Removable. Window for unhindered wiring. Blank labelling field on the top allows easy labelling for each branch.