Why Choose the Cembre 2180390 A3-M16 Copper Compression Ring Terminal?
The Cembre 2180390, also designated as the Cembre A3-M16, is a professional non-insulated copper compression ring terminal designed to terminate 16 mm² copper conductors onto M16 threaded studs. Part of the established Cembre A-M terminal series, it provides a secure, low-resistance connection for industrial switchgear, control panels, machinery and electrical distribution equipment.
Manufactured from high-purity electrolytic copper tube, the Cembre A3-M16 is engineered to deliver excellent electrical conductivity and the mechanical strength needed to resist vibration and conductor pull-out. The terminal is annealed for optimum ductility during compression and electrolytically tin plated to protect the copper against oxidation and corrosion.
The Cembre 2180390 combines a 16 mm² short-barrel connection with a large M16 ring palm. Its funnel-shaped barrel entry helps guide flexible and low-stranded conductors into position, while the integrated inspection hole allows the installer to verify full conductor insertion before crimping.
Key Advantages
- Designed for reliable termination of 16 mm² copper conductors.
- M16 stud compatibility for larger bolted connection points.
- High-purity electrolytic copper provides excellent electrical conductivity.
- Annealed construction supports consistent compression crimping.
- Electrolytic tin plating improves oxidation and corrosion resistance.
- Inspection hole enables verification of correct conductor insertion.
Key Features
- Cembre A-M copper compression terminal series.
- Manufacturer part number: 2180390.
- Terminal designation: A3-M16.
- 16 mm² / approximately 6 AWG conductor compatibility.
- M16 ring connection for secure bolted mounting.
- Short barrel with a funnel-shaped entry.
- Integrated inspection hole for conductor-position verification.
- Suitable for professional compression crimping.
Copper compression terminals create a permanent electrical connection by compressing the terminal barrel tightly around the conductor strands. When correctly installed, the resulting joint provides excellent electrical continuity, strong pull-out resistance and dependable performance under vibration, thermal cycling and mechanical stress.
The large M16 ring configuration makes the Cembre A3-M16 suitable for equipment with substantial threaded connection points, while its short barrel provides a compact termination for 16 mm² conductors. For optimum performance, the terminal should be installed using a compatible professional crimping tool and the correct die specified for the conductor and terminal series.
Typical Applications
- Industrial switchgear and electrical distribution equipment.
- Control panels and electrical cabinets.
- Busbar and equipment-terminal connections.
- Motor control centres and industrial machinery.
- OEM automation systems and cable assemblies.
- Marine, utility and industrial maintenance applications.
