Copper tinned ring terminal Ergom KOR 25/10 (MPN E11KM-01020103600)

Ergom KOR 25/10 is a copper tinned ring terminal designed to create a secure, low-resistance electrical connection to a stud or bolt. The tin-plated copper construction improves corrosion resistance and solderability while maintaining good electrical conductivity. This ring-style crimp terminal is suited for applications where a fixed bolted connection is required, such as electrical panels, automotive wiring harnesses, and industrial assemblies.

Advantages

The tin-plated copper body offers a balance of conductivity and corrosion protection, reducing the risk of oxidation at the connection point. The ring design ensures a reliable mechanical and electrical joint when fastened to a stud or bolt. The terminal is compatible with standard crimping tools and provides a predictable connection quality when properly installed.

Suitable for

• Electrical distribution panels and busbar connections
• Automotive battery and grounding connections
• Industrial machinery and control cabinets
• Solar and renewable energy system connections where bolted terminals are used

When it may not be suitable

This ring terminal is intended for crimped connections to wires of the specified cross-section and for fastening to studs or bolts; it is not designed for direct soldering of large conductor bundles without appropriate preparation. It may be unsuitable where insulation, vibration isolation, or fully waterproof sealing is required unless additional protective measures (heat-shrink tubing, sealants) are applied.

Key specifications

• Material: tinned copper conductor
• Terminal type: ring/crimp
• Nominal conductor cross-section compatibility: 25 mm²
• Ring inner diameter: 10 mm (suitable for M10-sized studs/bolts)
• Finish: tin plating for corrosion resistance
• Connection method: crimp (mechanical crimping tool recommended)

How to use

Strip the conductor insulation to the appropriate length for the terminal barrel. Insert the bare conductor fully into the crimp barrel so that strands are not splayed. Use a suitable crimping tool sized for 25 mm² terminals and apply a single, firm crimp to form a gas-tight mechanical joint. After crimping, position the ring over the stud or bolt and secure with a washer and nut to the recommended torque for the application. If environmental protection is required, apply heat-shrink tubing or an appropriate sealant over the connection.

What to consider before purchase

• Confirm the conductor cross-section (25 mm²) matches the cable to be used.
• Verify the stud or bolt size is compatible with the 10 mm inner ring diameter.
• Ensure you have the correct crimping tool rated for copper tinned terminals of this size.
• Consider whether additional insulation or sealing is needed for the installation environment.

Usage recommendations

For reliable long-term performance, use a calibrated crimping tool appropriate for 25 mm² copper tinned terminals, check crimps visually and mechanically, and protect exposed connections in corrosive or wet environments with heat-shrink or sealant.