Cembre A03-M4 2100110 electrolytic copper non-insulated ring terminal with M4 stud connection for 0.5 mm² conductors.
£0.34
The Cembre A03-M4 (2100110) is a premium non-insulated electrolytic copper ring terminal designed for the secure termination of 0.5 mm² conductors onto M4 studs. As part of the trusted Cembre A-M series, it provides excellent electrical conductivity, high mechanical strength and dependable long-term performance in industrial electrical installations.
Manufactured from greater than 99.9% pure electrolytic copper, the terminal is annealed and electrolytically tin plated to improve crimpability while providing excellent corrosion resistance. The brazed seam and inspection hole help ensure a secure conductor termination and simplify installation.
Designed for professional panel builders, OEMs and electrical contractors, the A03-M4 is suitable for control panels, switchgear, machinery and general industrial wiring applications where reliable low-resistance electrical connections are essential.
Ring terminals provide secure, vibration-resistant electrical connections where conductors must be fastened to threaded studs or terminal blocks. The Cembre A03-M4 combines high-purity electrolytic copper with precision manufacturing to deliver dependable conductivity and long service life.
Its annealed barrel simplifies crimping while the electrolytic tin plating helps protect against oxidation and corrosion, making it suitable for demanding industrial environments.
| Series | A-M Copper Terminals |
|---|---|
| Product code | 2100110 |
| Product type | Non-insulated ring terminal |
| Conductor size | 0.5 mm² |
| Stud size | M4 |
| Terminal material | Electrolytic copper (>99.9% purity) |
| Surface finish | Electrolytic tin plated |
| Hole diameter | 4.3 mm |
| Overall length | 13 mm |
| Barrel length | 6 mm |
| Cable stripping length | 3.3 mm |
| Minimum packaging | 100 pieces |
| HS Code | 85369010 |
| Country of Manufacture | Italy |
It provides a secure ring termination for 0.5 mm² conductors on M4 threaded studs.
The terminal is designed for 0.5 mm² conductors.
The terminal is designed for M4 studs with a 4.3 mm fixing hole.
Electrolytic tin plating improves corrosion resistance while maintaining excellent electrical conductivity.
It is commonly used in industrial control panels, switchgear, machinery and OEM electrical equipment.
Cembre copper terminals are trusted worldwide by electrical contractors, panel builders and OEM manufacturers for dependable conductor termination and long-term electrical performance.
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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...