Copper C Type Compression Taps & C Type Connectors – Manufacturer & Exporter from India
Cable Glands India manufactures and exports Copper C Type Compression Taps and Copper C Type Connectors — high-conductivity electrical connectors designed for permanent, maintenance-free tapping and jointing of copper and aluminum conductors in overhead lines, substations, and distribution systems. Also known as C-clamp connectors, C-tap connectors, or copper compression taps, these fittings provide reliable electrical and mechanical connections in low-maintenance, high-performance applications.
What Are Copper C Type Compression Taps?
Copper C Type Compression Taps (C-taps) are compression-style connectors shaped like the letter “C” that wrap around a main conductor and a tap conductor. When crimped with hydraulic compression tools, the C-body deforms plastically to create a permanent, gas-tight, low-resistance connection. They are widely used in overhead distribution lines, substation bus bar connections, and cable jointing applications where bolted connectors are not preferred due to vibration or maintenance access constraints.
Types of Copper C Type Connectors
- Copper C Type Compression Tap (C-Tap) – For tapping a branch conductor from a main running conductor without cutting the main
- Copper H Type Compression Connector – For in-line jointing of two conductors of similar or different sizes
- Copper Y Type Compression Tap – For three-way branch connections in distribution networks
- Copper C Type Run & Tap Connector – For simultaneous main conductor run-through and branch tap
- Copper Parallel Groove C Connector – For parallel groove clamping without compression (bolted variant)
- Bi-Metallic C Type Connector – Copper body with aluminum insert for copper-to-aluminum connections
Key Features & Specifications
- Material: Electrolytic Tough Pitch (ETP) Copper (99.9% Cu), Oxygen-Free Copper (OFC), or Tinned Copper
- Main Conductor Range: 10 mm² to 630 mm² (copper or aluminum)
- Tap Conductor Range: 10 mm² to 240 mm²
- Conductor Types: Copper, AAC, AAAC, ACSR, stranded or solid conductors
- Surface Finish: Bare copper, Electro-tinned, or Silver-plated
- Crimping Standard: ASTM B8, ASTM B231, BS 215, IS 398 conductor compatible
- Standards: ASTM B152, BS EN 13601, IS 613, IEC 61238-1, EN 50182
- Temperature Rating: Up to 90°C continuous, 250°C short-circuit rated
- Contact Resistance: ≤ 20 µΩ per connector at rated conductor size
Technical Specifications Table – Copper C Type Compression Taps
| Part Number | Main Conductor Range | Tap Conductor Range | Crimping Dies | Application |
|---|---|---|---|---|
| CT-10/35 | 10–35 mm² | 10–35 mm² | Standard dies | LT distribution taps |
| CT-35/70 | 35–70 mm² | 16–50 mm² | Standard dies | Service connections |
| CT-50/120 | 50–120 mm² | 25–95 mm² | Hex/indent dies | Distribution taps |
| CT-95/240 | 95–240 mm² | 35–150 mm² | Hex/indent dies | HT substation taps |
| CT-150/400 | 150–400 mm² | 70–240 mm² | Large hex dies | Bus bar connections |
| CT-240/630 | 240–630 mm² | 95–300 mm² | Large hex dies | Substation bus bars |
Copper Grades & Material Standards
| Material | ASTM Standard | BS / IS Standard | Conductivity | Application |
|---|---|---|---|---|
| ETP Copper (Cu-ETP) | ASTM B152 / UNS C11000 | BS EN 13601 / IS 613 | ≥ 100% IACS | Standard C-taps for all LT/HT applications |
| Oxygen-Free Copper (Cu-OF) | ASTM B170 / UNS C10100 | BS EN 13600 / IS 13573 | ≥ 101% IACS | High-purity applications, power electronics |
| Tinned ETP Copper | ASTM B246 | BS EN 13602 | ≥ 97% IACS | Outdoor and coastal applications, Al conductor joints |
| Silver-Plated Copper | ASTM B700 | BS EN 14825 | ≥ 98% IACS | High-temperature, bus bar, substation applications |
Applications of Copper C Type Compression Taps
- Overhead LT and HT distribution line service taps and branch connections
- Substation bus bar tapping and equipment terminal connections
- Cable jointing and termination in power distribution networks
- Street lighting tapping from main distribution lines
- Solar farm DC cable connections and combiner box wiring
- Industrial plant power distribution tap-offs
- Railway traction overhead wire connections
- Earthing system conductor joints and bonding connections
- Transformer LV and MV side cable connections
Why Choose Cable Glands India for Copper C Type Compression Taps?
- Manufactured from premium ETP copper with ≥ 100% IACS conductivity
- Available in standard C-tap, H-type, Y-type, run-and-tap, and bi-metallic configurations
- Compatible with standard hydraulic compression tooling (Burndy, Klauke, Cembre, Panduit dies)
- Tinned and silver-plated variants available for corrosion protection and aluminum compatibility
- Full range from 10 mm² to 630 mm² conductor sizes for LT, HT and substation applications
- In-house quality testing: conductivity, pull-out force, contact resistance, visual and dimensional inspection
- Material test certificates (MTC), IEC 61238-1 type test reports available on request
- Fast global delivery to UK, USA, UAE, Australia, South Africa, Southeast Asia and Middle East
Frequently Asked Questions (FAQs)
What is the difference between a C Type Compression Tap and a bolted C clamp?
A C Type Compression Tap is a permanent, tool-crimped connector that deforms plastically to create a gas-tight, vibration-proof joint. A bolted C clamp (parallel groove connector) uses bolts and can be re-tightened or removed. Compression taps are preferred for permanent installations with high vibration or where maintenance access is restricted.
Can Copper C Type Connectors be used with aluminum conductors?
Standard copper C-taps should not be directly used on aluminum conductors due to galvanic corrosion. For aluminum conductor applications, we supply bi-metallic C-tap connectors with an aluminum insert and copper body, or tinned copper C-taps with anti-oxidant compound.
What compression tools are required for Copper C Type Compression Taps?
Our C-type taps are compatible with standard hydraulic compression tools from Burndy, Klauke, Cembre, and Panduit. Die sets (hexagonal or indent type) are selected based on the connector part number. We can advise on die selection for your specific tooling upon request.
What is the current-carrying capacity of Copper C Type Compression Taps?
Current capacity depends on conductor cross-section, ambient temperature, and installation conditions. A C-tap rated for 120 mm² copper conductor can typically carry 300–350 A continuously at 40°C ambient in open air. Contact us for detailed ampacity tables.
Get a Quote for Copper C Type Compression Taps & C Type Connectors
Looking for a reliable source for Copper C Type Compression Taps and C Type Connectors? Contact our technical team today with your requirements — conductor size (main and tap), conductor material (copper or aluminum), surface finish, quantity, and delivery location. We will provide a fast, competitive quote.
Email: sales@cableglandsindia.com
Phone: +91-22-43449300 | +91-22-43449323