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2340950 Cembre A48-4ESI (240) COPPER TERMINAL
Cembre 2340950 A48-4ESI four-hole tinned copper compression transformer lug for 240 mm² stranded or flexible copper conductors with an ESI fixing arrangement.
£31.92
Why Choose the Cembre A48-4ESI Four-Hole Transformer Cable Lug?
The Cembre 2340950 A48-4ESI is a heavy-duty four-hole copper compression cable lug designed for secure connections between large copper conductors and transformer terminals. Manufactured to suit standard ESI transformer fixing arrangements, it provides a stable, low-resistance termination for demanding low-voltage and medium-voltage power distribution applications.
The terminal is manufactured from high-purity electrolytic copper tube, annealed to provide the ductility required for reliable compression crimping. Its electrolytically tin-plated finish helps protect the copper against oxidation and corrosion, supporting dependable electrical performance throughout the service life of the installation.
Designed for 240 mm² stranded or flexible copper conductors, the A48-4ESI features a wide palm with four fixing holes arranged on standard 25 mm by 35 mm centres. This four-bolt configuration distributes mechanical loading across the connection and helps prevent movement under vibration, thermal cycling and high fault-current forces.
Key Advantages
- Four-hole ESI fixing arrangement suits common transformer terminals.
- Designed for 240 mm² copper conductors.
- Provides excellent resistance to rotation, vibration and mechanical movement.
- Manufactured from high-purity electrolytic copper for efficient conductivity.
- Annealed construction supports controlled compression crimping.
- Electrolytic tin plating protects against oxidation and corrosion.
Key Features
- Cembre A-4ESI series transformer cable lug.
- Manufacturer part number: 2340950.
- Model: A48-4ESI.
- 240 mm² nominal conductor capacity.
- Four transformer fixing holes.
- Standard 25 mm by 35 mm hole-centre arrangement.
- Suitable for stranded and flexible copper conductors.
- Annealed electrolytic copper tube construction.
- Electrolytically tin-plated surface finish.
- Integrated conductor inspection hole.
Reliable Four-Bolt Transformer Connections
The four-hole palm is designed to match commonly used ESI transformer fixing arrangements, helping installers create stable connections without adapting or drilling the terminal. Distributing the clamping force across four fasteners reduces the risk of palm rotation and provides excellent mechanical security in transformer and power-distribution installations.
When installed using compatible Cembre crimping equipment and the correct die set, the A48-4ESI produces a controlled compression with high pull-out strength and low electrical resistance. The inspection hole allows technicians to verify complete conductor insertion before crimping, helping ensure a consistent and dependable termination.
Typical Applications
- Low-voltage transformer connections.
- Medium-voltage transformer cable terminations.
- Transformer secondary terminals.
- Electrical substations.
- Utility power-distribution networks.
- Industrial switchgear and switchboards.
- High-current busbar and power equipment connections.
Technical Specifications
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| Number of Fixing Holes | 4 | |
|---|---|---|
| Device Type | Copper Tube Lug | |
| Conductor Size | 240 mm² | |
| Material | Copper | |
| Palm Angle | Straight (0°) | |
| Suitable Conductor Material | Copper | |
| Conductor Class | Class 5 (flexible) | |
| Series | A-4ESI Transformer Lugs | |
| Manufacturer part number | 2340950 | |
| Product type | Four-hole copper compression transformer lug | |
| Nominal conductor size | 240 mm² | |
| Compatible conductor material | Copper | |
| Compatible conductor types | Stranded and flexible copper | |
| Number of fixing holes | 4 | |
| Typical stud size | M8 | |
| Fixing-hole diameter | approximately 9 mm | |
| Fixing-hole centres | 25 mm × 35 mm | |
| Internal barrel diameter | 21.1 mm | |
| Palm width | 61 mm | |
| Overall length | 128 mm | |
| Dimension M | 20 mm | |
| Dimension N | 15 mm | |
| Terminal material | Annealed electrolytic copper | |
| Surface finish | Electrolytic tin plating | |
| Inspection hole | Yes | |
| Installation method | Compression crimping | |
| HS Code | 85369010 | |
| Country of Manufacture | United Kingdom (includes NI) |
Frequently Asked Questions
What is the Cembre 2340950 used for?
The Cembre 2340950 is a four-hole compression cable lug used to connect a 240 mm² copper conductor to a transformer terminal or other equipment with a compatible ESI fixing arrangement.
What is the model designation for Cembre part 2340950?
The manufacturer model designation for Cembre part number 2340950 is A48-4ESI.
What conductor size does the A48-4ESI support?
The terminal is designed for 240 mm² stranded or flexible copper conductors.
What is the fixing-hole arrangement?
The A48-4ESI has four fixing holes arranged on standard 25 mm by 35 mm centres, suitable for common ESI transformer fixing patterns.
Why is the transformer lug tin plated?
The electrolytic tin-plated finish protects the copper against oxidation and corrosion while helping maintain reliable electrical conductivity.
Trusted by Utility and Electrical Professionals
Cembre A-4ESI transformer lugs are trusted by utility contractors, cable jointers and power-system engineers for mechanically secure, high-conductivity transformer connections in demanding electrical networks.
