Cembre 2161850 S2.5-M3.5 non-insulated electrolytic copper ring terminal for 1.5-2.5 mm² conductors with an M3.5 stud connection.
£0.19
The Cembre 2161850 is a premium non-insulated copper ring terminal engineered to provide secure, permanent electrical connections for copper conductors in industrial and commercial applications. Manufactured by Cembre, this terminal combines high-purity electrolytic copper construction with precision engineering to deliver excellent conductivity, outstanding mechanical strength and long-term reliability.
Designed for 1.5–2.5 mm² (16–14 AWG) conductors, the terminal features an M3.5 fixing hole, making it ideal for electrical panels, machinery, switchgear, automation equipment and maintenance applications. Its brazed seam construction and knurled barrel provide enhanced pull-out strength and superior electrical contact after crimping.
The electrolytically tin-plated finish offers excellent corrosion resistance while maintaining low contact resistance throughout the service life of the connection. Designed for professional crimping using suitable tooling, the Cembre 2161850 delivers dependable performance in demanding industrial environments.
Ring terminals provide permanent bolted electrical connections that resist vibration while maintaining low electrical resistance. When installed using the correct crimping tool, they provide excellent mechanical retention and dependable long-term performance.
Cembre manufactures its S-Series terminals from high-purity electrolytic copper using brazed seam technology and precision tin plating to maximise conductivity, corrosion resistance and installation reliability across demanding industrial environments.
| Series | S Range Non-Insulated Ring Terminals |
|---|---|
| Part number | 2161850 |
| Product type | Non-insulated ring terminal |
| Conductor size | 1.5–2.5 mm² (16–14 AWG) |
| Stud size | M3.5 |
| Material | Electrolytic copper (99.95% purity) |
| Surface finish | Tin plated (minimum 3 μm) |
| Operating temperature | -50°C to +150°C |
| Barrel construction | Brazed seam with internal knurling |
| ETIM classification | EC001052 |
| Installation | Compression crimp |
| Pack quantity | 100 pieces |
| GTIN | 8016692035857 |
| HS Code | 85369010 |
| Country of Manufacture | Italy |
It is a non-insulated ring terminal designed for secure bolted electrical terminations on copper conductors in industrial installations.
The terminal accepts copper conductors from 1.5 mm² to 2.5 mm² (16–14 AWG).
The terminal is designed for an M3.5 fixing stud.
It is manufactured from high-purity electrolytic copper with a corrosion-resistant tin-plated finish.
No. The Cembre 2161850 is a non-insulated ring terminal intended for professional crimping applications.
Cembre ring terminals are trusted by panel builders, OEM manufacturers and electrical contractors worldwide for delivering safe, durable and high-performance electrical connections across 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...