Why Choose the Cembre 2397491 CL300-12 Colour-Coded Copper Compression Lug?
The Cembre 2397491, manufacturer reference CL300-12, is a premium colour-coded long-barrel copper compression ring terminal designed for terminating large copper conductors in industrial power distribution, switchgear, renewable energy and utility applications. Manufactured from over 99.9% pure electrolytic copper, it delivers exceptional electrical conductivity together with long-term mechanical reliability.
The CL Series features an annealed copper barrel that is easier to compress while offering excellent resistance to mechanical stress. An electrolytic tin-plated finish provides outstanding corrosion resistance, making the terminal suitable for demanding indoor and outdoor installations. Unlike conventional inspection-hole terminals, the long-barrel CL Series features a sealed barrel design that helps prevent moisture and dirt ingress.
Designed for 300 kcmil (approximately 150 mm²) copper conductors, the CL300-12 incorporates a M12 fixing hole (13.2 mm) and white colour coding for rapid identification of the correct conductor size and matching Cembre compression die.
Key Advantages
Professional long-barrel compression lug for copper conductors.
Designed for 300 kcmil (150 mm²) cable terminations.
M12 fixing hole (13.2 mm) for industrial power connections.
Manufactured from annealed electrolytic copper for maximum conductivity.
White colour coding simplifies die identification.
Key Features
Cembre CL Series long-barrel colour-coded compression lug.
Manufacturer reference: CL300-12.
Ordering code: 2397491.
Conductor size: 300 kcmil (150 mm²).
Stud size: M12.
Hole diameter: 13.2 mm.
Colour code: White.
Long-barrel, non-insulated construction.
Closed barrel without inspection hole.
Compatible with approved Cembre compression tooling.
Reliable Cable Termination for Industrial Power Systems
Long-barrel compression lugs provide permanent, low-resistance electrical connections between large copper conductors and equipment such as switchgear, transformers, generators and busbars. The extended barrel increases conductor contact area and provides enhanced mechanical retention after compression.
The Cembre CL Series combines premium copper construction, precision manufacturing and colour-coded identification to deliver dependable performance across industrial, commercial, renewable energy and utility installations.
Typical Applications
Industrial switchgear and control panels.
Power distribution equipment.
Transformer and generator terminations.
Busbar connections.
Renewable energy installations.
Electrical infrastructure projects.
Industrial maintenance and utility systems.
Technical Specifications
Series
CL Series Long-Barrel Compression Lugs
Ordering code
2397491
Product type
Copper compression ring terminal
Conductor material
Copper
Conductor size
300 kcmil
Approximate metric size
150 mm²
Stud size
M12
Hole diameter
13.2 mm
Overall length
98 mm
Palm width
31.5 mm
Barrel diameter
16.7 mm
Cable stripping length
55 mm
Conductor entry diameter
21.5 mm
Material
Annealed electrolytic copper (>99.9% purity)
Finish
Electrolytic tin plated
Inspection hole
No
Colour code
White
Die index
30
RoHS compliant
Yes
HS Code
85369010
Country of Manufacture
Italy
Frequently Asked Questions
What conductor size is the Cembre 2397491 designed for?
The CL300-12 is designed for 300 kcmil (approximately 150 mm²) copper conductors.
What stud size does this terminal fit?
It features an M12 fixing hole with a nominal diameter of 13.2 mm.
Why doesn't this terminal have an inspection hole?
The CL Series uses a sealed long-barrel design that helps reduce the ingress of moisture and contaminants, making it particularly suitable for outdoor and demanding environments.
Why is the terminal colour coded white?
The white colour code enables installers to identify the correct conductor size and compatible Cembre compression die quickly and accurately.
What material is the compression lug manufactured from?
The terminal is manufactured from annealed electrolytic copper with an electrolytic tin-plated finish for outstanding conductivity and corrosion resistance.
Trusted by Electrical Professionals Worldwide
Cembre long-barrel compression terminals are trusted by electrical contractors, OEMs, utilities and panel builders for producing dependable, high-performance cable terminations in demanding industrial power applications.
Series
CL Series Long-Barrel Compression Lugs
Ordering code
2397491
Product type
Copper compression ring terminal
Conductor material
Copper
Conductor size
300 kcmil
Approximate metric size
150 mm²
Stud size
M12
Hole diameter
13.2 mm
Overall length
98 mm
Palm width
31.5 mm
Barrel diameter
16.7 mm
Cable stripping length
55 mm
Conductor entry diameter
21.5 mm
Material
Annealed electrolytic copper (>99.9% purity)
Finish
Electrolytic tin plated
Inspection hole
No
Colour code
White
Die index
30
RoHS compliant
Yes
HS Code
85369010
Country of Manufacture
Italy
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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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...