Why Choose the Cembre 2181500 A3B-M6 Copper Terminal?
The Cembre 2181500, also identified as the Cembre A3B-M6, is a high-quality straight copper compression terminal designed to provide secure, low-resistance electrical connections for stranded and flexible copper conductors. Manufactured for demanding industrial environments, it delivers dependable performance in electrical panels, machinery and power distribution systems.
Manufactured from high-conductivity electrolytic copper, the terminal is annealed to maximise ductility during crimping and electrolytically tin-plated to improve corrosion resistance. This combination ensures excellent electrical conductivity, strong mechanical performance and long service life even in applications subject to vibration.
The Cembre A3B-M6 is designed for 16 mm² copper conductors and features an M6 fixing hole, making it ideal for industrial control panels, switchgear, OEM equipment, motor control centres and commercial electrical installations requiring professional compression terminations.
Key Advantages
Straight compression terminal for reliable electrical connections.
Suitable for 16 mm² copper conductors.
M6 fixing hole for secure bolted installation.
Manufactured from annealed electrolytic copper for excellent conductivity.
Inspection hole assists correct conductor insertion before crimping.
Key Features
Cembre A-B Series straight compression terminal.
Manufacturer Part Number: 2181500.
Alternative SKU: A3B-M6.
Nominal conductor size: 16 mm².
M6 ring terminal.
Electrolytic copper tube construction.
Electrolytically tin-plated finish.
Inspection hole and chamfered barrel.
Reliable Copper Cable Termination for Industrial Installations
Compression terminals create a permanent electrical and mechanical connection when installed using the correct professional crimping tool and die set. The seamless copper barrel provides low contact resistance while maintaining excellent resistance to vibration and conductor pull-out.
The straight palm configuration is ideal for applications where cables approach terminals directly, providing a compact and reliable solution for electrical panels, switchgear and industrial machinery.
Typical Applications
Industrial control panels.
Power distribution equipment.
Switchgear assemblies.
Motor control centres.
Machine building and OEM equipment.
Commercial and industrial electrical installations.
Technical Specifications
Series
A-B Series
Manufacturer Part Number
2181500
Product Type
Straight copper compression terminal
Terminal Style
Ring terminal
Conductor Material
Copper
Nominal Conductor Size
16 mm²
Stud Size
M6
Material
Annealed electrolytic copper
Surface Finish
Electrolytically tin plated
Termination Method
Compression crimp
Inspection Hole
Yes
HS Code
85369010
Country of Manufacture
Italy
Frequently Asked Questions
What is the Cembre 2181500 used for?
The Cembre 2181500 is used to create a professional compression termination on 16 mm² copper conductors using an M6 bolted connection.
What conductor size does the A3B-M6 support?
The terminal is designed for 16 mm² copper conductors.
What fixing-hole size does this terminal have?
The Cembre A3B-M6 features an M6 mounting hole for secure bolted electrical connections.
Why is the terminal tin plated?
The electrolytically tin-plated finish improves corrosion resistance while maintaining excellent electrical conductivity over the life of the installation.
How should the Cembre 2181500 be installed?
The conductor should be fully inserted into the barrel and compressed using a compatible professional crimping tool and correctly matched die set for the conductor size.
Trusted by Electrical Professionals Worldwide
Cembre compression terminals are trusted by electrical contractors, panel builders and industrial engineers for their high-quality construction, reliable crimp performance and long-term durability in demanding industrial environments.
Series
A-B Series
Manufacturer Part Number
2181500
Product Type
Straight copper compression terminal
Terminal Style
Ring terminal
Conductor Material
Copper
Nominal Conductor Size
16 mm²
Stud Size
M6
Material
Annealed electrolytic copper
Surface Finish
Electrolytically tin plated
Termination Method
Compression crimp
Inspection Hole
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...