Insulated ring terminal KOE_10-70 /20pcs/ KOE_10-70/20

Solid Connection for Large Cross-Section Cables

Crimping thick copper cables requires a component that not only withstands mechanical pressure but also ensures stable electrical contact for years. The insulated ring terminal KOE_10-70 is a solution dedicated to multi-strand conductors with a cross-section of 70 mm², which must be connected to a metric screw terminal with thread M10. Thanks to the use of electrolytically tinned copper, the product offers excellent conductivity and corrosion resistance, which is crucial in industrial installations or low-voltage switchboards. The yellow polyamide insulation not only protects against accidental short circuits but also allows for instant identification of the conductor cross-section during maintenance or assembly work.

Application and Operating Conditions

This type of terminal excels where high thermal and mechanical durability is required. The insulation material allows for safe operation within a wide temperature range – from -40°C to +125°C, making it suitable for use in harsh environmental conditions, e.g., in production halls or outdoors (within enclosures). The construction compliant with standard DIN 46234 guarantees that the ring shape and ferrule dimensions are precisely matched to European standards.

Practical applications include installation in electrical systems, industrial automation, and machine building, where it is necessary to connect multi-strand copper conductors. The polyamide insulation plays a dual role here: it physically protects the contact point against short circuits and protects against electric shock at the point of contact with the fastening screw.

Key Construction and Assembly Features

During the installer's work, the most important factor is the certainty that the terminal will not loosen under the influence of vibrations or heat. The ferrule made of electrolytically tinned copper ensures this thanks to the protective coating, which prevents metal oxidation at the contact point with the screw. The ring (eyelet) shape facilitates mounting on a busbar or screw – after tightening with a nut, it creates a rigid connection. It is worth remembering that this product is intended exclusively for multi-strand conductors; using it with a single-core conductor may lead to insulation damage or poor contact.

The technical parameters of this model are strictly defined: construction from electrolytically tinned copper ensures corrosion resistance, and the polyamide insulation withstands temperatures from -40°C to +125°C. The nominal cross-section is 70 mm², which corresponds to the yellow color of the insulation marking. The connection is designed for a metric screw with thread M10 (size 10 mm), and the construction itself meets the requirements of standard DIN 46234 for ring terminals.

To achieve an optimal connection, it is recommended to use dedicated crimping tools (e.g., hydraulic presses or manual crimping pliers suitable for size 70 mm²). Regardless of the chosen method, it is crucial to maintain the full circumference of the ferrule during crimping – insufficient compression may cause the contact point to overheat in the future.