Cembre 2489535 BSCL1 colour-coded long-barrel non-insulated butt splice connector for joining 40 mm² copper conductors using compression crimping.
£3.38
The Cembre 2489535, also identified as the BSCL1, is a premium colour-coded long-barrel butt splice connector engineered for permanently joining 40 mm² copper conductors in industrial, commercial and utility electrical installations. As part of the trusted Cembre BSCL series, this non-insulated compression connector provides excellent electrical conductivity together with outstanding mechanical strength and long-term reliability.
Manufactured from annealed electrolytic copper with a purity greater than 99.9% and finished with electrolytic tin plating, the BSCL1 is designed to provide low-resistance electrical connections while resisting corrosion in demanding environments. The long-barrel construction offers an increased compression area, helping produce secure and durable cable joints when installed using compatible Cembre compression tooling.
Featuring tapered conductor entries at both ends and an integrated central conductor stop, the connector simplifies conductor insertion while ensuring accurate positioning before crimping. The green colour coding allows rapid identification of the correct connector size and corresponding compression die.
Compression butt splice connectors provide permanent low-resistance electrical joints while maintaining excellent mechanical integrity. The Cembre BSCL range has been developed for demanding industrial applications where long-term reliability and consistent electrical performance are essential.
The BSCL1 combines a long compression barrel with annealed electrolytic copper construction to maximise conductor contact during crimping. Its electrolytic tin-plated finish helps protect the joint against oxidation and corrosion, ensuring dependable service throughout the life of the installation.
| Series | BSCL |
|---|---|
| Manufacturer part number | 2489535 |
| Product type | Colour-coded butt splice connector |
| Connector style | Straight-through long-barrel splice |
| Conductor material | Copper |
| Conductor cross-section | 40 mm² |
| Approximate conductor size | 1 AWG |
| Connector material | Annealed electrolytic copper (>99.9% purity) |
| Surface finish | Electrolytic tin plating |
| Colour code | Green |
| Die index | 7 |
| Overall length | 65.5 mm |
| Barrel length | 32.7 mm |
| Conductor diameter | 8.9 mm |
| Cable stripping length | 36 mm |
| Operating temperature | -50 °C to +150 °C |
| Maximum operating voltage | Up to 35 kV |
| Termination method | Compression crimping |
| Compliance | UL 486A-486B, RoHS compliant |
| HS Code | 85369010 |
| Country of Manufacture | Italy |
The BSCL1 is designed to permanently join two compatible 40 mm² copper conductors using compression crimping.
This connector is designed for 40 mm² copper conductors, approximately equivalent to 1 AWG.
No. The Cembre BSCL1 is a non-insulated butt splice and should be insulated after installation using an appropriate insulation method.
The electrolytic tin plating improves corrosion resistance while maintaining excellent electrical conductivity throughout the service life of the connector.
Yes. An integrated central stop ensures both conductors are inserted to the correct depth before compression.
Cembre BSCL compression connectors are trusted by panel builders, industrial electricians, utilities and OEM manufacturers to deliver reliable, high-performance copper cable connections 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...