Why Choose the Cembre 2190270 A5-M14 Copper Compression Ring Terminal?
The Cembre 2190270, also designated as the Cembre A5-M14, is a professional non-insulated copper compression ring terminal designed to terminate 25 mm² copper conductors onto M14 threaded studs. Part of the established Cembre A-M ring terminal series, it provides a secure, low-resistance electrical connection for industrial switchgear, control panels, machinery and power-distribution equipment.
Manufactured from high-purity Cu-OF CW008A electrolytic copper tube, the Cembre A5-M14 is engineered to provide excellent electrical conductivity and the mechanical strength required to resist vibration and conductor pull-out. The terminal is annealed to provide optimum ductility during compression and electrolytically tin plated to improve resistance to oxidation, corrosion and mechanical stress.
The Cembre 2190270 combines a 25 mm² conductor barrel with an M14 ring palm. Its internally chamfered barrel entry helps guide conductor strands into position, while the integrated inspection hole allows installers to confirm full conductor insertion before crimping.
Key Advantages
- Designed for reliable termination of 25 mm² copper conductors.
- M14 stud compatibility for substantial bolted electrical connections.
- High-purity electrolytic copper delivers excellent 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 ring terminal series.
- Manufacturer part number: 2190270.
- Terminal designation: A5-M14.
- 25 mm² / approximately 4 AWG conductor compatibility.
- M14 ring fixing configuration.
- Internally chamfered barrel for easier conductor insertion.
- Integrated inspection hole for conductor-position verification.
- Suitable for professional compression crimping applications.
Copper compression ring terminals create a permanent electrical joint by mechanically compressing the terminal barrel around the conductor strands. When installed using the correct crimping tool and die, the resulting connection offers excellent electrical continuity, strong pull-out resistance and reliable performance under vibration, thermal cycling and mechanical stress.
The M14 ring configuration makes the Cembre A5-M14 suitable for equipment with larger threaded connection points, while its 25 mm² barrel supports commonly used industrial power conductors. The annealed copper construction also allows the palm to tolerate the deformation and positioning that may occur during installation without cracking between the barrel and palm.
Typical Applications
- Industrial switchgear and power-distribution assemblies.
- Control panels and electrical cabinets.
- Busbar and equipment-terminal connections.
- Motor control centres and industrial machinery.
- OEM automation systems and cable assemblies.
- Electrical maintenance and installation projects.
