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2190290 Cembre A5-M16 COPPER TERMINAL
Cembre 2190290 A5-M16 non-insulated tin-plated copper compression ring terminal for terminating 25 mm² copper conductors onto M16 threaded studs.
£6.19
Why Choose the Cembre 2190290 A5-M16 Copper Compression Ring Terminal?
The Cembre 2190290, also designated as the Cembre A5-M16, is a professional non-insulated copper compression ring terminal designed to terminate 25 mm² copper conductors onto M16 threaded studs. Part of the proven Cembre A-M copper tube terminal series, it provides a secure, low-resistance electrical connection for industrial switchgear, power distribution equipment, control panels and heavy-duty machinery.
Manufactured from annealed electrolytic copper tube with a purity greater than 99.9%, the A5-M16 delivers outstanding electrical conductivity together with excellent mechanical strength. The electrolytic tin-plated finish protects against oxidation and corrosion, while the annealed construction ensures optimum ductility for dependable compression crimping.
The Cembre 2190290 features a 17 mm fixing hole for M16 studs, a chamfered easy-entry barrel and an integrated inspection hole. These design features simplify conductor insertion and allow installers to verify correct cable positioning before crimping, helping produce reliable, long-lasting electrical terminations.
Key Advantages
- Designed for dependable termination of 25 mm² copper conductors.
- M16 stud compatibility for high-current bolted connections.
- Manufactured from high-purity annealed electrolytic copper.
- Electrolytic tin plating improves corrosion and oxidation resistance.
- Inspection hole confirms full conductor insertion before crimping.
- Suitable for professional hexagonal and indent compression crimping.
Key Features
- Cembre A-M copper compression ring terminal series.
- Manufacturer part number: 2190290.
- Terminal designation: A5-M16.
- 25 mm² / approximately 4 AWG conductor compatibility.
- M16 ring terminal connection.
- Easy-entry chamfered barrel.
- Integrated inspection hole.
- Suitable for industrial electrical and OEM applications.
Engineered for High-Reliability Electrical Connections
Copper compression terminals create permanent low-resistance electrical joints by mechanically compressing the barrel around the conductor strands. When installed with the appropriate compression tooling and die set, the resulting connection offers excellent conductivity, high pull-out resistance and dependable performance under vibration, thermal cycling and heavy electrical loading.
The Cembre A5-M16 is ideally suited to industrial power distribution systems where larger M16 bolted connections are required. Its annealed copper construction, tin-plated finish and precision-manufactured dimensions ensure consistent installation quality and long service life.
Typical Applications
- Industrial switchgear.
- Power distribution equipment.
- Motor control centres.
- Electrical control panels.
- OEM machinery and automation systems.
- Electrical installation and maintenance projects.
Technical Specifications
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| Number of Fixing Holes | 1 | |
|---|---|---|
| Conductor Size | 25 mm² | |
| Stud Size | M16 | |
| Material | Copper | |
| Palm Angle | Straight (0°) | |
| Device Type | Copper Tube Lug | |
| Series | A-M Ring Terminals | |
| Manufacturer part number | 2190290 | |
| Product type | Non-insulated copper compression ring terminal | |
| Conductor cross-section | 25 mm² | |
| Approximate AWG equivalent | 4 AWG | |
| Stud size | M16 | |
| Fixing-hole diameter | 17 mm | |
| Palm width (B) | 26 mm | |
| Dimension N | 16 mm | |
| Dimension M | 18 mm | |
| Dimension I | 43.5 mm | |
| Overall length (L) | 59.5 mm | |
| Barrel length (A) | 16.5 mm | |
| Barrel internal diameter | 10 mm | |
| Barrel external diameter | 13 mm | |
| Cable stripping length | 19 mm | |
| Connection angle | 180° (straight) | |
| Terminal shape | Ring | |
| Number of fixing holes | 1 | |
| Material | Annealed electrolytic copper tube (>99.9% purity) | |
| Surface treatment | Electrolytic tin plating | |
| Crimping geometry | Hexagonal or indent | |
| Maximum voltage rating | 11 kV | |
| Operating temperature | -50 °C to +150 °C | |
| Inspection hole | Yes | |
| Insulated | No | |
| RoHS compliant | Yes | |
| UL standard | UL 486A-486B | |
| HS Code | 85369010 | |
| Country of Manufacture | Italy |
Frequently Asked Questions
What is the Cembre 2190290 used for?
The Cembre 2190290 is used to terminate 25 mm² copper conductors onto M16 threaded studs in industrial electrical equipment and power-distribution systems.
What cable size does the A5-M16 support?
The terminal is designed for 25 mm² copper conductors, equivalent to approximately 4 AWG.
Is the Cembre 2190290 insulated?
No. It is a professional non-insulated copper compression ring terminal.
Does the terminal include an inspection hole?
Yes. The integrated inspection hole allows installers to verify that the conductor has been fully inserted before compression crimping.
How should the Cembre 2190290 be installed?
The conductor should be stripped to approximately 19 mm, inserted fully into the barrel and crimped using an approved compression tool and the correct die for a 25 mm² Cembre terminal.
Trusted by Electrical Professionals Worldwide
Cembre copper compression terminals are trusted worldwide by panel builders, OEM manufacturers, utilities and electrical contractors for secure, durable and electrically efficient cable terminations.
