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ABB - THOMAS & BETTS RA857 Copper Ring Terminal

The RA857 is a copper ring terminal featuring an electro tin plated finish and a red vinyl insulator. It is equipped with an extra-long PVC insulation sleeve to provide added protection and reduce bending stress at the wire flex point. The terminal has a serrated brazed seam barrel for a high pull-out strength and improves wire grip. It includes wire range identification on the terminal tongue. Made of electrolytic copper for high conductivity, the terminal also has a UL94V-0 flammability rating. Suitable for defense, military, aerospace, and industrial applications, it is compatible with various crimping tools.

Authorized Distributors
Source:Newark
Part No:RA857
Stock:4
Inv Date:06-01-2026
Price: Unit price: $378.15
Buy/RFQ:
Source:DigiKey
Part No:RA857
Stock:0
Inv Date:06-01-2026
Price: Unit price: $0.50525
Buy/RFQ:
Part No:RA857
Stock:2068
Inv Date:06-02-2026
Price: Unit price: $0.96
Buy/RFQ:
Part No:RA857
Stock:11259
Inv Date:06-01-2026
Price: Unit price: $0.5
Buy/RFQ:
Part No:RA857
Stock:10408
Inv Date:06-01-2026
Price: Unit price: $0.6471
Buy/RFQ:
Part No:RA857
Stock:10408
Inv Date:06-01-2026
Price: Unit price: $0.6471
Buy/RFQ:

ABB - THOMAS & BETTS RA857 Copper Ring Terminal Specifications:

  • Material: Electrolytic Copper
  • Finish: Electro Tin Plated
  • Insulation: Red Vinyl
  • Sleeve Length: Extra-long PVC insulation sleeve
  • Seam: Serrated brazed seam barrel
  • Flammability Rating: UL94V-0
  • Wire Range: Identified on terminal tongue, compatible with various AWG sizes
  • Application: Suitable for defense, military, aerospace, industrial wiring
  • Compatibility: Crimping tools with single or double indentors

Buy the Acme RA857 – Reliable Copper Ring Terminal for Industrial Applications

Enhance your electrical connections with the Acme copper ring terminal featuring an extra-long PVC insulation sleeve for added protection and durability. Constructed from high-conductivity electrolytic copper and electro tin plated for corrosion resistance, it offers a secure connection with serrated seam barrels for high pull-out strength. UL94V-0 flammability rating ensures safety in critical applications. Compatible with various crimping tools, this terminal is ideal for military, aerospace, and industrial wiring projects, providing reliable, durable, and safe electrical terminations for demanding environments.

Order your Acme Series RA857 copper ring terminal today and give your projects the dependable quality they deserve, especially for aerospace and industrial wiring.

Frequently Asked Questions

Where can I buy ABB - THOMAS & BETTS RA857?

You can click on the BUY or RFQ button to purchase RA857 from an authorized ABB - THOMAS & BETTS distributor.

How do I troubleshoot issues or seek technical support for part RA857?

You can download the RA857 datasheet or visit the ABB - THOMAS & BETTS website for support.

Who is the manufacturer of RA857?

ABB - THOMAS & BETTS

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