Cembre 2145684 RKY-M3 pre-insulated ring terminal for 0.25–1.5 mm² conductors with M3 stud fixing, electrolytic tin-plated copper construction and PA6.6 insulation.
£0.16
The Cembre 2145684 (RKY-M3) is a premium-quality pre-insulated ring terminal engineered to provide secure, long-lasting electrical terminations for flexible copper conductors. Designed for industrial control panels, switchgear, machinery and OEM electrical installations, this terminal delivers outstanding conductivity, mechanical strength and resistance to vibration.
Manufactured from 99.95% pure electrolytic copper with a minimum 3 μm tin-plated finish, the RKY-M3 provides excellent corrosion resistance and reliable electrical performance. The halogen-free PA6.6 polyamide insulation incorporates a reinforced anti-vibration collar and easy-entry barrel to simplify installation while ensuring dependable crimp quality.
Suitable for 0.25–1.5 mm² flexible copper conductors with an M3 stud, the Cembre 2145684 is widely used by panel builders, maintenance engineers and electrical contractors where professional-quality cable terminations are essential.
Ring terminals provide permanent, vibration-resistant electrical connections that remain securely fastened under demanding operating conditions. Their closed-ring design prevents accidental disconnection and offers excellent mechanical reliability in industrial applications.
Cembre insulated terminals are trusted worldwide for professional electrical installations, combining premium materials with precision manufacturing to ensure dependable long-term performance in machinery, automation systems and electrical distribution equipment.
| Series | RKY Ring Terminals |
|---|---|
| Part number | 2145684 |
| Product type | Pre-insulated ring terminal |
| Cable size | 0.25–1.5 mm² |
| Stud size | M3 |
| Insulation colour | Red |
| Conductor material | 99.95% electrolytic copper |
| Surface finish | Tin plating (minimum 3 μm) |
| Insulation material | Polyamide PA6.6 |
| Operating temperature | -20°C to +105°C (110°C short-term) |
| Flammability rating | UL94 V2 |
| Halogen free | Yes |
| Installation | Crimp termination |
| HS Code | 85369010 |
| Country of Manufacture | Taiwan |
It provides secure crimped ring terminations for flexible copper conductors connected to M3 stud terminals.
The RKY-M3 is designed for flexible copper conductors from 0.25 mm² to 1.5 mm².
It is manufactured from 99.95% electrolytic copper with a minimum 3 μm tin-plated finish and PA6.6 insulation.
Yes. Its reinforced anti-vibration collar, halogen-free insulation and corrosion-resistant construction make it ideal for demanding industrial applications.
The terminal is crimped onto the conductor using an appropriate crimping tool before being secured to an M3 stud.
Cembre electrical connection products are trusted by panel builders, OEM manufacturers and industrial electricians for delivering safe, reliable and professional electrical terminations across demanding industrial environments.
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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...