Cembre 2240390 A14-M20 electrolytic copper ring terminal with tin-plated finish for reliable industrial electrical cable terminations and switchgear applications.
SKU:2240390Alt SKU:A14-M20MPN:2240390
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Why Choose the Cembre 2240390 A14-M20 Copper Ring Terminal?
The Cembre 2240390 (A14-M20) is a premium-quality electrolytic copper ring terminal designed to provide secure, low-resistance electrical connections in industrial power and control systems. Manufactured by Cembre, this heavy-duty cable lug is engineered for reliable performance in demanding electrical installations, switchgear, machinery and panel building applications.
Manufactured from 99.9% pure electrolytic copper and finished with an electrolytic tin coating, the terminal delivers excellent electrical conductivity while providing outstanding resistance to corrosion and mechanical stress. The annealed barrel construction simplifies crimping, while the inspection hole and chamfered entry make conductor insertion fast and accurate.
The A14-M20 copper terminal is ideal for professional electricians, OEM machine builders and industrial panel manufacturers requiring dependable cable terminations with long service life and consistent electrical performance.
Key Advantages
Manufactured from 99.9% pure electrolytic copper for maximum conductivity.
Inspection hole ensures correct cable positioning before crimping.
Suitable for demanding industrial electrical installations.
Key Features
Cembre A-M Series copper ring terminal.
Manufacturer Part Number: 2240390.
Alternative SKU: A14-M20.
High-purity electrolytic copper construction.
Electrolytic tin-plated surface finish.
Heavy-duty seamless design for industrial applications.
Inspection hole for correct conductor positioning.
Designed for professional crimping tools.
Reliable Electrical Connections for Industrial Applications
Cembre copper ring terminals are designed to provide durable, low-resistance electrical connections for industrial power distribution and control systems. Their high-conductivity copper construction helps minimise voltage drop while ensuring dependable long-term performance under demanding operating conditions.
The A-M Series combines premium materials with precision manufacturing, making these terminals suitable for professional installers working on control panels, switchgear, automation systems and electrical machinery where connection reliability is essential.
Typical Applications
Industrial control panels.
Electrical switchgear.
Machine building and OEM equipment.
Power distribution systems.
Industrial automation installations.
General electrical wiring and maintenance.
Technical Specifications
Series
A-M Series
Alternative SKU
A14-M20
Product type
Copper ring terminal
Material
99.9% electrolytic copper
Surface finish
Electrolytic tin plated
Construction
Annealed copper barrel
Terminal type
Ring terminal
Connection method
Crimp
HS Code
85369010
Country of Manufacture
Italy
Frequently Asked Questions
What is the Cembre 2240390 used for?
The Cembre 2240390 is a copper ring terminal used to create secure crimped electrical connections on industrial cables and conductors.
What material is the terminal made from?
It is manufactured from 99.9% pure electrolytic copper with an electrolytic tin-plated finish for excellent conductivity and corrosion resistance.
Why is the barrel annealed?
The annealed copper barrel makes the connector easier to crimp while improving mechanical strength and long-term reliability.
What is the purpose of the inspection hole?
The inspection hole allows installers to verify that the conductor has been fully inserted before crimping, helping ensure a reliable electrical connection.
Where is this terminal commonly installed?
It is widely used in industrial control panels, switchgear, machinery, automation systems and general electrical installations.
Trusted by Electrical Professionals Worldwide
Cembre copper terminals are trusted by electricians, panel builders and OEM manufacturers for delivering dependable, high-quality electrical connections in industrial and commercial installations.
Series
A-M Series
Alternative SKU
A14-M20
Product type
Copper ring terminal
Material
99.9% electrolytic copper
Surface finish
Electrolytic tin plated
Construction
Annealed copper barrel
Terminal type
Ring terminal
Connection method
Crimp
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
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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.
What product ranges do you supply
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...