Cembre 2181590 A3B-M12 straight electrolytically tin-plated copper compression terminal for 16 mm² copper conductors with an M12 fixing hole.
£1.80
The Cembre 2181590, also identified as the Cembre A3B-M12, is a premium straight copper compression terminal designed to provide safe, low-resistance electrical terminations for stranded and flexible copper conductors. Manufactured for demanding industrial applications, it delivers dependable performance in switchgear, control panels, machinery and power distribution equipment.
Manufactured from high-purity annealed electrolytic copper and finished with an electrolytic tin coating, the terminal combines excellent electrical conductivity with long-term corrosion resistance. Its seamless barrel features a chamfered entry and inspection hole to simplify conductor insertion and help ensure consistent, high-quality compression crimps.
Designed for 16 mm² copper conductors and incorporating an M12 fixing hole, the Cembre A3B-M12 is ideally suited to industrial control panels, motor control centres, OEM machinery and commercial electrical installations requiring professional compression terminations.
Compression terminals create permanent electrical and mechanical connections when installed using compatible professional crimping tools and correctly matched dies. The seamless copper barrel minimises electrical resistance while providing excellent resistance to vibration and conductor pull-out in demanding industrial environments.
The straight palm configuration is ideal where conductors approach the fixing point directly, providing a compact and reliable termination solution for industrial machinery, electrical panels, switchgear and power distribution equipment.
| Series | A-B Series |
|---|---|
| Manufacturer Part Number | 2181590 |
| Product Type | Straight copper compression terminal |
| Terminal Style | Ring terminal |
| Conductor Material | Copper |
| Nominal Conductor Size | 16 mm² |
| Stud Size | M12 |
| Material | Annealed electrolytic copper |
| Surface Finish | Electrolytically tin plated |
| Termination Method | Compression crimp |
| Inspection Hole | Yes |
| Operating Temperature | -50 °C to +150 °C |
| RoHS Compliant | Yes |
| HS Code | 85369010 |
| Country of Manufacture | Italy |
The Cembre 2181590 is used to create a professional compression termination on 16 mm² copper conductors using an M12 bolted connection.
The terminal is designed for 16 mm² copper conductors.
The Cembre A3B-M12 features an M12 mounting hole for secure bolted electrical connections.
The electrolytically tin-plated finish improves corrosion resistance while maintaining excellent electrical conductivity throughout the service life of the installation.
The conductor should be fully inserted into the barrel and compressed using a compatible professional crimping tool with the correct die set recommended for the conductor size.
Cembre compression terminals are trusted by electrical contractors, panel builders and industrial engineers for their outstanding manufacturing quality, dependable crimp performance and long service life in demanding industrial applications.
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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...