Cembre 2370990 A100-4ESI four-hole electrolytic copper compression cable lug for terminating 500 mm² copper conductors in transformer and industrial power distribution applications.
£61.80
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.
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.
| 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) |
The Cembre 2370990 is used to terminate 500 mm² copper conductors onto transformer and power equipment using a four-hole ESI fixing arrangement.
The four-hole design improves mechanical strength, prevents rotation and provides excellent resistance to vibration and electrodynamic forces.
It is manufactured from annealed high-purity electrolytic copper with an electrolytic tin-plated finish for maximum conductivity and corrosion resistance.
This compression cable lug is designed for 500 mm² stranded copper conductors.
It is commonly installed on transformers, substations, switchgear and utility power distribution equipment.
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.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...