Bolt lug 1NB-25/50 M10 GreenEnergy ge-1nb-025-050-m10

Bolt cable terminals are designed for terminating all types of cable conductors: aluminum and copper, round and sector, multi-strand and multi-wire aluminum and copper conductors with paper oil-impregnated and plastic insulation Unlike single-size cable terminals and crimp sleeves, bolt terminals and connectors cover a wide range of cross-sections and can be used for mounting several cable sizes. This feature has led to the popularity of using bolt terminals and connectors in the assembly of heat-shrinkable sleeves The cable conductor entry hole in bolt terminals is offset from the central axis to ensure the required strength characteristics in the bolt fastening zone. The entire internal cylindrical surface of the terminals has a serrated relief to increase the electrical contact area and mechanical strength between the terminal and the cable conductor. During installation on aluminum cables, the serrated surface bites into the cable conductor, destroying the oxide surface layer. The blade of the bolt terminals is offset from the central axis of the body, which ensures convenience when connecting the cable line to busbar devices in switchboards. Unlike cheap analogs, all bolt terminals (except for the smallest size in the 10-25mm2 range) are equipped with 2 and 3 bolts (starting from 300 mm2 cross-section), which ensures high mechanical strength of the connection and high-quality electrical contact. The special design of the bolts provides for the presence of one or two shear necks with pre-set bolt head shear torques. Due to the two-level arrangement of the necks, the bolt head shear always occurs flush with or below the surface of the terminal body. This eliminates the need for grinding sharp edges formed after shearing bolts with one neck and significantly reduces installation time. Bolt terminals are made of a special aluminum alloy possessing high electrical conductivity and mechanical strength. Terminal fastening to the conductor is carried out by tightening hex head bolts, which shear off upon reaching the specified torque, ensuring optimal mechanical and electrical properties of the contact connection according to GOST 17441-84 electrical conductivity level. Service life of the connectors is 30 years The hole for the stud in the terminal plate can be changed by agreement of the parties.