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2370990 Cembre A100-4ESI (500) COPPER TERMINAL
Cembre 2370990 A100-4ESI four-hole electrolytic copper compression cable lug for terminating 500 mm² copper conductors in transformer and industrial power distribution applications.
£49.44
Why Choose the Cembre 2370990 Copper Compression Cable Lug?
The Cembre 2370990 (A100-4ESI) is a heavy-duty four-hole copper compression cable lug engineered for secure termination of large copper conductors in transformer, switchgear and utility power distribution applications. As part of the robust Cembre A-4ESI Series, it is manufactured from high-purity electrolytic copper and electro-tinned to deliver exceptional electrical conductivity, corrosion resistance and long-term mechanical reliability.
Designed specifically for transformer and utility installations, the four-hole fixing arrangement conforms to Electricity Association (E.A.) specifications, providing excellent resistance to vibration and electrodynamic forces while ensuring compatibility with many standard transformer terminal arrangements. The annealed copper construction, extended barrel and inspection hole enable consistently high-quality compression crimps.
Suitable for terminating 500 mm² stranded copper conductors using a 4-hole ESI fixing pattern, the Cembre 2370990 is ideal for substations, transformers, switchgear, renewable energy systems and industrial power distribution installations requiring maximum connection security.
Key Advantages
- Heavy-duty four-hole compression cable lug for utility and transformer applications.
- 500 mm² conductor capacity for high-current installations.
- 4-hole ESI fixing pattern provides exceptional mechanical stability.
- Manufactured from 99.9% electrolytic copper for maximum conductivity.
- Electrolytic tin-plated finish protects against corrosion and oxidation.
- Designed to withstand vibration and heavy mechanical loading.
Key Features
- Cembre A-4ESI Series transformer cable lug.
- Model: A100-4ESI.
- 500 mm² conductor capacity.
- Four-hole ESI fixing arrangement.
- Annealed electrolytic copper construction.
- Electrolytic tin-plated finish.
- Inspection hole for conductor verification.
- Extended barrel for accurate die positioning.
- Designed for transformer and utility connections.
Reliable Electrical Connections for Utility and Transformer Installations
Four-hole compression cable lugs provide outstanding mechanical stability by distributing fixing loads across multiple attachment points. When installed using approved Cembre compression tooling, they deliver low-resistance electrical connections capable of withstanding vibration, thermal cycling and high fault currents.
The Cembre A-4ESI Series is widely specified by utilities, transformer manufacturers and electrical contractors where secure, long-lasting high-current cable terminations are essential.
Typical Applications
- Power transformers.
- Electrical substations.
- HV and LV switchgear.
- Industrial power distribution systems.
- Utility infrastructure.
- Renewable energy installations.
Technical Specifications
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| Conductor Size | 500 mm² | |
|---|---|---|
| Material | Copper | |
| Palm Angle | Straight (0°) | |
| Device Type | Copper Tube Lug | |
| Series | A-4ESI Series | |
| Part number | 2370990 | |
| Product type | Four-hole copper compression cable lug | |
| Conductor size | 500 mm² | |
| Fixing type | 4-hole ESI transformer pattern | |
| Material | Annealed electrolytic copper (>99.9% purity) | |
| Surface finish | Electrolytic tin plating | |
| Palm width | 61 mm | |
| Internal barrel diameter | 30.3 mm | |
| Inspection hole | Yes | |
| HS Code | 85369010 | |
| Country of Manufacture | United Kingdom (includes NI) |
Frequently Asked Questions
What is the Cembre 2370990 used for?
The Cembre 2370990 is used to terminate 500 mm² copper conductors onto transformer and power equipment using a four-hole ESI fixing arrangement.
Why does this cable lug use four fixing holes?
The four-hole design improves mechanical strength, prevents rotation and provides excellent resistance to vibration and electrodynamic forces.
What material is the cable lug manufactured from?
It is manufactured from annealed high-purity electrolytic copper with an electrolytic tin-plated finish for maximum conductivity and corrosion resistance.
What conductor size does this cable lug support?
This compression cable lug is designed for 500 mm² stranded copper conductors.
Where is this cable lug typically installed?
It is commonly installed on transformers, substations, switchgear and utility power distribution equipment.
Trusted by Electrical Professionals Worldwide
Cembre transformer cable lugs are trusted by utilities, transformer manufacturers, panel builders and industrial engineers for delivering secure, reliable and durable high-current electrical connections.
