Cembre 2396940 C4/0-34 colour-coded copper crimping lug for 110 mm² copper conductors, featuring an M20 stud hole, tin-plated electrolytic copper construction and purple die marking.
£9.21
The Cembre 2396940, manufacturer reference C4/0-34, is a high-quality colour-coded copper crimping lug designed for secure termination of large copper conductors in industrial electrical installations, power distribution systems and control equipment. Manufactured as part of the Cembre C series, this compression lug combines excellent electrical conductivity with dependable mechanical strength.
The lug is manufactured from high-purity electrolytic copper and is annealed to improve ductility during crimping. An electrolytic tin-plated finish helps protect the connector against oxidation, supporting reliable long-term electrical performance in demanding environments. Its chamfered barrel entry and inspection hole simplify conductor insertion and allow installers to confirm that the cable has been fully positioned before crimping.
Designed for 110 mm² copper conductors, the C4/0-34 features a 21 mm palm hole suitable for M20 fixings. The purple colour-coded die marking and Cembre die index 19 help installers select the correct tooling and achieve a consistent, accurately compressed connection.
Compression cable lugs provide a secure electrical and mechanical connection between conductors and equipment terminals. When installed using the correct Cembre crimping tool and die set, the C4/0-34 creates a low-resistance joint capable of withstanding vibration, mechanical stress and demanding industrial operating conditions.
The colour-coded die marking system helps reduce installation errors by making it easier to identify the correct compression tooling. The annealed copper barrel deforms evenly during crimping, while the tin-plated surface helps preserve conductivity by protecting the copper against oxidation.
| Series | C Colour-Coded Ring Terminals |
|---|---|
| Manufacturer part number | 2396940 |
| Product type | Colour-coded copper crimping lug |
| Conductor material | Copper |
| Cable cross-section | 110 mm² |
| Stud size | M20 |
| Palm hole diameter | 21 mm |
| Number of palm holes | 1 |
| Palm width | 29.5 mm |
| Overall length | 77.5 mm |
| Barrel length | 24.5 mm |
| Barrel internal diameter | 13.5 mm |
| Barrel external diameter | 17.5 mm |
| Recommended cable stripping length | 27 mm |
| Die colour marking | Purple |
| Die index | 19 |
| Material | High-purity electrolytic copper |
| Surface treatment | Electrolytic tin plating |
| Annealed | Yes |
| Inspection hole | Yes |
| Crimping geometry | Semicircular |
| Minimum operating temperature | -50°C |
| Maximum operating temperature | +150°C |
| UL standard | UL 486A-486B |
| HS Code | 85369010 |
| Country of Manufacture | Italy |
The Cembre 2396940 is used to terminate a large copper conductor onto an M20 stud or equipment terminal using a compatible compression crimping tool.
The C4/0-34 is designed for a copper conductor with a cross-sectional area of approximately 110 mm².
The lug has a 21 mm palm hole and is designed for use with an M20 fixing or stud.
The purple marking identifies the correct Cembre crimping die system for this lug. The specified die index is 19.
The electrolytic tin-plated finish helps protect the copper against oxidation and supports stable electrical performance over the life of the connection.
Cembre colour-coded copper crimping lugs are widely used by electrical engineers, panel builders, utilities and industrial installers for dependable, accurately crimped power 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...