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2161890 Cembre S2.5-M3.5/1 RING TERMINAL
Cembre 2161890 S2.5-M3.5/1 non-insulated electrolytic copper ring terminal for 1.5-2.5 mm² conductors with an M3.5 stud connection.
£0.2092
Why Choose the Cembre 2161890 Ring Terminal?
The Cembre 2161890 is a high-quality non-insulated copper ring terminal engineered to provide secure, permanent electrical connections for copper conductors in industrial and commercial installations. Manufactured by Cembre, this terminal combines premium electrolytic copper construction with precision manufacturing to deliver excellent electrical 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 and is supplied as the S2.5-M3.5/1 variant. The brazed seam barrel with internal knurling enhances conductor retention while the electrolytic tin-plated finish provides excellent corrosion resistance for demanding industrial environments.
Suitable for professional compression crimping, the Cembre 2161890 is widely used by panel builders, OEMs, machine manufacturers and maintenance engineers requiring dependable electrical terminations in control panels, switchgear and automation equipment.
Key Advantages
- Professional non-insulated ring terminal for industrial wiring.
- Suitable for 1.5–2.5 mm² copper conductors.
- M3.5 stud connection for secure bolted terminations.
- Manufactured from high-purity electrolytic copper.
- Tin-plated finish offers excellent corrosion resistance.
- Brazed seam construction and knurled barrel improve mechanical strength and electrical performance.
Key Features
- Manufacturer: Cembre.
- Manufacturer Part Number: 2161890.
- Alternative Type: S2.5-M3.5/1.
- Product type: Non-insulated ring terminal.
- Conductor size: 1.5–2.5 mm² (16–14 AWG).
- Stud size: M3.5.
- Electrolytic copper construction with tin plating.
- Brazed seam barrel with internal knurling.
- Designed for professional compression crimping.
Reliable Electrical Connections for Industrial Applications
Ring terminals provide permanent bolted electrical connections with excellent vibration resistance and consistently low contact resistance. When installed using the correct crimping tools, they provide dependable long-term performance across demanding industrial environments.
Cembre S-Series terminals are manufactured from electrolytic copper with a purity exceeding 99.9%, then brazed, annealed and electrolytically tin-plated to maximise conductivity, corrosion resistance and mechanical durability. Internal knurling further improves conductor grip and pull-out resistance.
Typical Applications
- Industrial control panels.
- Machine building and OEM equipment.
- Switchgear assemblies.
- Factory automation systems.
- HVAC equipment.
- Industrial maintenance and repair.
Technical Specifications
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| Connection Orientation | Straight | |
|---|---|---|
| Stud Size | M3.5 | |
| Conductor Size | 1.5–2.5 mm² | |
| Insulation Type | Non-insulated | |
| Device Type | Ring Terminal | |
| Series | S Range Non-Insulated Ring Terminals | |
| Part number | 2161890 | |
| 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 | |
| ETIM classification | EC001052 | |
| Installation method | Compression crimp | |
| GTIN | 8016692159553 | |
| Pack quantity | 100 pieces | |
| HS Code | 85369010 | |
| Country of Manufacture | Italy |
Frequently Asked Questions
What is the Cembre 2161890 used for?
It is a non-insulated ring terminal designed for secure bolted electrical connections on copper conductors in industrial electrical installations.
What cable sizes does it support?
The terminal is designed for 1.5 mm² to 2.5 mm² copper conductors.
What stud size is required?
The terminal is designed to fit an M3.5 fixing stud.
What material is the terminal manufactured from?
It is manufactured from high-purity electrolytic copper with a corrosion-resistant electrolytic tin-plated finish.
Is this an insulated terminal?
No. The Cembre 2161890 is a non-insulated ring terminal intended for professional compression crimping applications.
Trusted by Electrical Professionals Worldwide
Cembre ring terminals are trusted by electrical contractors, panel builders and OEM manufacturers worldwide for delivering reliable, durable and standards-compliant electrical connections in demanding industrial applications.
