Cembre 2480170 L3-M copper compression through connector for joining 16 mm² copper conductors. Manufactured from electrolytic tin-plated copper with an internal central stop.
£0.56
The Cembre 2480170 (L3-M) is a premium-quality copper compression through connector (butt splice) designed for permanently joining low-voltage copper conductors. As part of the trusted Cembre L-M Series, it provides secure, low-resistance electrical joints for industrial, commercial and utility electrical installations.
Manufactured from 99.95% pure electrolytic copper and finished with electrolytic tin plating, the connector delivers exceptional electrical conductivity while offering excellent resistance to corrosion and oxidation. The annealed construction provides optimum ductility, ensuring reliable compression and long service life in demanding industrial environments.
Designed for 16 mm² copper conductors, the L3-M features chamfered barrel entries together with an internal central stop that ensures both conductors are correctly positioned before crimping. When installed using compatible Cembre compression tooling, it provides durable, maintenance-free cable joints.
The Cembre L-M Series has been developed for permanent splicing of low-voltage copper conductors. Its annealed electrolytic copper construction, corrosion-resistant tin plating and central conductor stop provide consistent electrical performance and excellent mechanical strength in demanding industrial environments.
Installed using compatible Cembre compression tools and dies, the L3-M delivers dependable long-term performance in switchboards, industrial machinery, electrical control panels and power distribution equipment.
| Series | L-M |
|---|---|
| Part number | 2480170 |
| Product type | Copper compression through connector |
| Conductor size | 16 mm² |
| Internal diameter | 5.8 mm |
| Overall length | 27 mm |
| Material | Electrolytic copper (>99.95% purity) |
| Surface finish | Electrolytic tin plating |
| Central stop | Yes |
| Operating temperature | -50°C to +150°C |
| Maximum voltage | 11 kV |
| HS Code | 85369010 |
| Country of Manufacture | Italy |
It is used to permanently join two 16 mm² copper conductors using compression crimping.
The L3-M is designed specifically for 16 mm² copper conductors.
The internal stop ensures both conductors are inserted to the correct depth before compression, producing a secure and reliable electrical joint.
Electrolytic tin plating protects against corrosion while maintaining excellent electrical conductivity.
Yes. It is designed for installation using compatible Cembre compression tools and dies.
Cembre L-M Series through connectors are trusted by electricians, panel builders and industrial engineers for producing durable, low-resistance cable joints in demanding electrical installations.
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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...