Copper Ring Terminal Non-Insulated Manufacturer
When it comes to reliable electrical connectivity, Copper Ring Terminals Non-Insulated play a crucial role in ensuring secure and long-lasting wire connections. Daga Power Group is a trusted Copper Ring Terminal Non-Insulated Manufacturer as well as a leading Copper Ring Terminal Manufacturer, offering a wide range of high-quality copper terminals designed for superior conductivity, durability, and corrosion resistance.
Our non-insulated copper ring terminals are widely used in electrical panels, control systems, automotive wiring, industrial equipment, and power distribution networks. Manufactured using high-grade copper and advanced production techniques, our terminals ensure strong mechanical strength and excellent electrical performance across diverse applications.
As a reputed Copper Ring Terminal Non-Insulated Manufacturer in Kolkata, Daga Power Group supplies premium-quality products across West Bengal, Odisha, Bihar, Jharkhand, Chhattisgarh, and Assam, ensuring consistent quality, reliability, and timely delivery for all types of electrical and industrial projects.
What is a Copper Ring Terminal Non-Insulated?
A Copper Ring Terminal Non-Insulated is a type of electrical connector designed to terminate wires securely to a stud or screw terminal. Unlike insulated versions, these terminals do not have a plastic covering, making them ideal for applications where insulation is already provided externally.
These terminals are widely used in:
- Electrical control panels
- Industrial machinery
- Automotive wiring systems
- Power distribution systems
- Renewable energy installations
- Their ring shape ensures a firm connection that prevents accidental disconnection, making them highly reliable for critical electrical applications.
Manufacturing Process
- Raw copper procurement– We use high-conductivity electrolytic copper (C110 or equivalent) as the base material, ensuring low resistance and reliable performance.
- Precision blanking and stamping– Using automated presses, we cut blanks for rings and barrels with uniform dimensions, to maintain consistent quality and ensure proper fit on studs.
- Barrel forming– The conductor entry barrel is formed to appropriate inner diameter for the selected conductor size; barrel length and wall thickness are controlled to optimise crimp strength.
- Annealing and shaping– For larger gauge terminals, we carry out annealing to relieve stresses and improve deformation during crimping, ensuring better contact and durability.
- Plating/finishing– The terminals may remain bright copper or receive tin plating for improved corrosion resistance, oxidation protection and better contact surfaces.
- Dimensional & mechanical testing– We perform pull-out tests, crimp dimension verification and stud-fit checks to guarantee each batch meets mechanical and electrical criteria.
- Packaging & dispatch– Terminals are sorted by size, batch-coded, packed for protection, and supplied with documentation for traceability. Custom part-numbers, special stud sizes or bulk supply options available on request.
Benefits of Copper Ring Terminal Non-Insulated
- Cost-efficient– Without the added material (insulation), non-insulated terminals are typically more economical while delivering full copper conductivity.
- High electrical performance– Direct copper-to-copper contact ensures minimal contact resistance and efficient current flow.
- Space-saving design– Eliminates bulk of insulation sleeve, enabling tighter connections and compact assemblies in panels or busbars.
- Flexibility in protection– Users can apply their own heat-shrink tubing, flex-boot or panel housing to suit the particular environment, offering customisation.
- Long service life– Good material choice, finishing, and mechanical integrity ensure stable connection over time, even in demanding industrial environments.
Salient Features
- Manufactured from high-purity electrolytic copper, ensuring excellent conductivity.
- Optional tin-plated finish for enhanced corrosion resistance and long-term reliability.
- Precisely formed barrel and ring dimensions for perfect fit on standard studs and bolts.
- Suitable for wide range of cable gauges – from moderate power leads to heavy duty cables.
- Available in standard stud sizes (M4, M5, M6, M8, M10, M12, M16, etc) and customised stud configurations.
- Consistent quality backed by mechanical testing (crimp pull-out, stud fit) and electrical inspection (contact resistance).
- RoHS compliant and compatible with industrial wiring regulations (on request).
- Bulk packs, custom marking, special finishes and custom part-numbers available for OEM clients.
Technical Chart — Non-Insulated Copper Ring Terminals
Below is a sample technical chart for reference. Exact dimensions, conductor ranges and part-numbers should be confirmed for your specific requirement.
Part Code | Conductor Range | Conductor mm² | Stud / Bolt Size | Barrel I.D. (mm) | Barrel Length (mm) | Finish |
CRT-2.5-4.3 | 1.5-2.5 mm² | 1.5-2.5 | M4 / 4.3 mm | ~2.5 | ~8 | Copper or Tin-plated |
CRT-4-4.8 | 2.5-4.0 mm² | 2.5-4.0 | M5 / 4.8 mm | ~3.2 | ~10 | Copper or Tin-plated |
CRT-6-6.3 | 4.0-6.0 mm² | 4.0-6.0 | M6 / 6.3 mm | ~4.0 | ~12 | Copper or Tin-plated |
CRT-10-8.4 | 6.0-10.0 mm² | 6.0-10.0 | M8 / 8.4 mm | ~5.2 | ~14 | Copper or Tin-plated |
CRT-25-12.2 | 16-25 mm² | 16-25 | M12 / 12.2 mm | ~8.0 | ~18 | Copper or Tin-plated |
CRT-50-20.0 | 35-50 mm² | 35-50 | M20 / 20.0 mm | ~12.5 | ~25 | Copper or Tin-plated |
Note: These are representative sizes. Please check with Daga Power Systems for the full catalogue, exact sizing, tolerance and batch specification.
Typical Applications
Industrial switchgear and distribution boards: for connecting heavy cable ends to studs or busbars.
- Motor control centres, starters and variable-frequency drives: for power cable terminations without insulation bulk.
- Heavy machinery and equipment: where compact and reliable connections are needed in rugged industrial settings.
- Renewable energy installations: e.g., solar or wind inverters, battery banks, where high current terminations are required.
- Earthing and grounding systems: non-insulated copper ring terminals are often used for ground bar connections, grounding straps and earth pits.
- Construction & infrastructure: for panel wiring, site power distribution, tunnelling, railway traction, etc.
- Automotive, marine, rail applications (where permissible): for battery banks, main power feeds and heavy current connections (subject to insulation strategy).
- OEM equipment manufacture: for machine builders, switch-panel manufacturers, power system integrators requiring bulk supply of non-insulated ring terminals.
Our Product Range
Apart from non-insulated ring terminals, we also manufacture other high-quality copper terminals for different electrical requirements.
These products are designed to provide safer electrical connections and are suitable for different installation environments.
Why Choose Daga Power Group?
Daga Power Group is a recognized Copper Ring Terminal Non-Insulated Manufacturer in Kolkata known for quality, reliability, and consistent supply.
Reasons to choose us:
- Premium quality copper materials
- Precision manufacturing standards
- Wide range of terminal sizes
- Competitive pricing
- Reliable supply for bulk orders
- Strong distribution network across Eastern and Central India
Our commitment to quality and performance makes us a trusted partner for electrical contractors, OEM manufacturers, and industrial buyers.
Supply Locations
Daga Power Group supplies Copper Ring Terminal Non-Insulated across multiple regions including:
- Kolkata
- West Bengal
- Odisha
- Bihar
- Jharkhand
- Chhattisgarh
- Assam
With a strong distribution network, we ensure timely delivery and consistent product availability for all electrical projects.
Contact Us
Get in touch with Daga Power Group, a trusted Copper Ring Terminal Non-Insulated Manufacturer and reliable Copper Ring Terminal Manufacturer. We supply across Kolkata, West Bengal, Odisha, Bihar, Jharkhand, Chhattisgarh, and Assam.
Call: +91 9007080808
Email: marketing@dagapowergroup.in
Connect with us for bulk orders and best pricing.