Cembre 2163630 (S2.5-M8) non-insulated electrolytic copper ring terminal with electrolytic tin plating for 1.5-2.5 mm² conductors and M8 stud connections.
£0.25
The Cembre 2163630, also identified as S2.5-M8, is a premium non-insulated copper ring terminal designed to provide secure, low-resistance electrical terminations for stranded copper conductors. Manufactured from high-purity electrolytic copper with an electrolytically tin-plated finish, it delivers outstanding electrical conductivity, corrosion resistance and dependable long-term performance in demanding industrial and commercial applications.
Designed for professional electricians, panel builders and OEM machine manufacturers, the terminal features a brazed seam barrel that provides exceptional mechanical strength together with an internally knurled barrel that enhances conductor grip and electrical contact after crimping. The enclosed ring design creates a secure, vibration-resistant bolted connection for permanent electrical installations.
Suitable for 1.5–2.5 mm² (16–14 AWG) conductors and an M8 stud, the Cembre 2163630 is ideal for industrial control panels, switchgear, machinery, automation systems and power distribution equipment requiring reliable electrical terminations.
Cembre S-Series ring terminals are manufactured from electrolytic copper strip with a purity exceeding 99.9% and electro-tinned to resist oxidation and corrosion. The brazed seam construction improves mechanical strength while the internally knurled barrel enhances conductor retention, producing consistently reliable crimped electrical connections.
The enclosed ring design provides a permanent, vibration-resistant fixing that is ideal for industrial control systems, electrical distribution equipment and machinery operating in demanding environments.
| Part number | 2163630 |
|---|---|
| Manufacturer series | S2.5-M8 |
| Product type | Non-insulated copper ring terminal |
| Terminal style | Ring terminal |
| Material | Electrolytic copper (>99.9% purity) |
| Surface finish | Electrolytic tin plating (minimum 3 µm) |
| Conductor size | 1.5–2.5 mm² (16–14 AWG) |
| Stud size | M8 |
| Operating temperature | -50 °C to +150 °C |
| Barrel type | Brazed seam with internal knurling |
| Insulation | None |
| Packaging | Pack of 100 |
| HS Code | 85369010 |
| Country of Manufacture | Italy |
It is used to terminate stranded copper conductors with a secure ring connection for bolted electrical terminations.
The terminal accommodates 1.5–2.5 mm² (16–14 AWG) copper conductors.
The Cembre 2163630 is designed for an M8 stud.
The electrolytic tin plating improves corrosion resistance while maintaining excellent long-term electrical conductivity.
It is widely used in industrial control panels, switchgear, automation systems, machinery and electrical distribution equipment.
Cembre electrical connection products are trusted worldwide by panel builders, OEM manufacturers and electrical contractors for delivering reliable, durable and high-performance electrical terminations across 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...