Erko tubular cable lug KCS8 tin-plated M8 for 50 mm² cable, model KCS_8-50/1

Erko tubular cable lug KCS8 tin-plated M8 for 50 mm² cable, model KCS_8-50/1 is a crimp-style tubular terminal developed for secure electrical connections of 50 mm² conductors. The lug features a cylindrical barrel designed to accept conductor strands for mechanical crimping and a flat eye with an M8 fastening hole for bolting to busbars, studs or grounding points. The tin-plated finish improves corrosion resistance and solderability, making the lug suitable for a range of power distribution and industrial wiring installations where a 50 mm² connection and M8 bolt are required.

Advantages

The tubular construction provides reliable mechanical retention and consistent electrical contact after proper crimping. Tin plating offers enhanced corrosion protection compared with bare copper and supports soldering when needed. The flat eye with an M8 hole ensures compatibility with common hardware sizes used in panels, switchgear and grounding systems. The simple geometry and standardized dimensions allow repeatable installations with common crimping tools and procedures.

Suitable for

• Power distribution connections in panels and switchboards
• Grounding and earthing conductors requiring an M8 fastening point
• Industrial machinery and control cabinets with 50 mm² cabling
• Battery installations and heavy-current terminals using bolt connections

Key specifications

• Conductor cross-section compatibility: 50 mm²
• Bolt hole diameter: M8 clearance for M8 fasteners
• Termination type: tubular barrel for crimping
• Eye style: flat circular eye for bolted connections
• Surface finish: tin-plated for corrosion resistance and solderability

How to use

Strip the conductor to the appropriate length so the strands fully enter the tubular barrel. Insert the conductor into the lug until the insulation meets the barrel shoulder, then perform a proper crimp using a calibrated hydraulic or mechanical crimping tool and the correct die for 50 mm² lugs. After crimping, inspect the joint for secure compression and, if required by the installation, apply a solder fillet to the barrel and tin-plated surface following standard soldering practice. Secure the lug by bolting the eye to the terminal stud or busbar using an M8 fastener, and ensure the fastener is tightened to the recommended torque for the connection and material specifications.

Usage recommendations

Use a crimp tool and die set sized for 50 mm² tubular lugs, verify crimp quality with visual and pull tests where applicable, and protect bolted connections from corrosion with appropriate washers or anti-oxidation compounds. Match fastener torque to installation standards and manufacturer guidance to maintain mechanical and electrical integrity.