Cembre 2350850 A60-4ESI four-hole tinned copper compression transformer lug for 300 mm² stranded or 240 mm² flexible copper conductors with an ESI fixing arrangement.
£39.90
The Cembre 2350850 A60-4ESI is a heavy-duty four-hole copper compression transformer lug designed for secure termination of large copper conductors onto standard transformer fixing arrangements. Its four-bolt palm provides excellent mechanical stability for demanding low-voltage and medium-voltage power-distribution installations.
Manufactured from electrolytic copper tube with a purity greater than 99.9%, the terminal is annealed to provide the ductility required during compression crimping. Its electrolytically tin-plated finish helps protect the copper against oxidation and corrosion, supporting dependable long-term electrical performance.
The A60-4ESI accommodates 300 mm² stranded copper conductors and selected 240 mm² flexible copper conductors. Four fixing holes arranged on standard 25 mm by 35 mm centres ensure compatibility with commonly used ESI transformer terminals.
The four-hole palm distributes fixing pressure across a wide contact area, helping prevent rotation and movement under vibration, thermal cycling and fault-current forces. Its ESI-compatible fixing pattern allows the terminal to be installed directly onto many standard transformer connection points.
When installed using compatible Cembre crimping equipment and the correct die set, the A60-4ESI forms a durable, low-resistance connection with strong conductor retention. The chamfered barrel entry assists conductor insertion, while the inspection hole allows the installer to confirm correct positioning before crimping.
| Series | A-4ESI Transformer Lugs |
|---|---|
| Manufacturer part number | 2350850 |
| Product type | Four-hole copper compression transformer lug |
| Nominal stranded conductor size | 300 mm² |
| Nominal flexible conductor size | 240 mm² |
| Compatible conductor material | Copper |
| Number of fixing holes | 4 |
| Stud size | M8 |
| Fixing-hole diameter | Approximately 9 mm |
| Fixing-hole centres | 25 mm × 35 mm |
| Internal barrel diameter | 23.7 mm |
| Palm width | 61 mm |
| Overall length | 133 mm |
| Dimension M | 20 mm |
| Dimension N | 15 mm |
| Terminal material | Annealed electrolytic copper |
| Copper purity | Greater than 99.9% |
| Surface finish | Electrolytic tin plating |
| Inspection hole | Yes |
| Maximum voltage rating | Up to 11 kV in a protected installation |
| Operating temperature | -50°C to +150°C |
| Installation method | Compression crimping |
| Typical pack quantity | 5 terminals |
| HS Code | 85369010 |
| Country of Manufacture | United Kingdom (includes NI) |
The Cembre 2350850 is a four-hole compression cable lug used to connect a large copper conductor to a transformer terminal with a compatible ESI fixing arrangement.
The manufacturer model designation for Cembre part number 2350850 is A60-4ESI.
The terminal is designed for 300 mm² stranded copper conductors and selected 240 mm² flexible copper conductors.
The A60-4ESI has four fixing holes arranged on standard 25 mm by 35 mm centres for compatibility with common ESI transformer terminals.
A four-hole lug distributes clamping force across multiple fixing points, providing excellent resistance to rotation, vibration and mechanical movement.
Cembre A-4ESI transformer lugs are trusted by utilities, cable jointers, electrical contractors and power-system engineers for mechanically secure, high-conductivity transformer connections.
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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...