High-End Precision Fasteners · Serving Global Customers Since 2003

High-Current Cold Crimp Terminal

High-Current Cold Crimp Terminal

This High-Current Cold Crimp Terminal is engineered with C18150 copper alloy at 98% IACS conductivity, delivering under 0.15mΩ contact resistance at full load, validated to sustain less than 30℃ temperature rise (UL 486A Sec 4.3.2) with 2,000-hour salt spray resistance (ASTM B117).

Product Specifications

Product Description

The High-Current Cold Crimp Terminal is built for power paths where resistance is the enemy. It is made from C18150 copper alloy with 98% IACS conductivity — a material capable of continuous current in the 600A class to IEC 61238-1 Class B — and delivers a contact resistance below 0.15mΩ at full load.

Low resistance matters because resistance becomes heat. The terminal is validated to sustain a temperature rise under 30℃ (UL 486A Sec 4.3.2) at full load, which keeps joints out of the thermal-runaway regime. Even a small resistance increase compounds: a 0.1mΩ rise translates into several degrees of excess heat, and excess heat accelerates oxidation, which raises resistance further — the loop that ends in connector failure or fire.

Manufacturing quality locks the performance in. Precision cold heading holds tolerance to ±0.02mm (ISO 2768-mK) and compresses the wire strands fully, so there are no micro-gaps to raise resistance at the crimp. ASTM B733 SC2 electroless nickel plating provides 2,000 hours of salt spray resistance (ASTM B117), protecting the joint in outdoor and industrial environments.

Key Features & Benefits

  • C18150 Copper Alloy: 98% IACS conductivity supports continuous currents in the 600A class (IEC 61238-1 Class B).
  • Under 0.15mΩ Contact Resistance: Low-resistance interface at full load reduces heat generation.
  • Under 30℃ Temperature Rise: Validated thermal performance (UL 486A Sec 4.3.2) avoids thermal runaway.
  • Full Strand Compression: Precision cold heading (±0.02mm, ISO 2768-mK) eliminates micro-gaps in the crimp.
  • 2,000-Hour Salt Spray Resistance: ASTM B733 SC2 electroless nickel plating protects against corrosion (ASTM B117).

Application Industries

Critical for systems where a small resistance increase escalates into excess heat and fire risk, this terminal is used in high-current power paths across electric vehicle charging and battery systems, energy storage installations and industrial power distribution.

It suits any application where a large cross-section conductor must be joined reliably and verified to hold stable resistance over years of service.

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