Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
2103030 Cembre A1-M3 TERMINAL
Cembre 2103030 A1-M3 non-insulated tin-plated copper ring terminal for 4–6 mm² copper conductors and M3 stud connections.
£0.472
Why Choose the Cembre 2103030 A1-M3 Copper Ring Terminal?
The Cembre 2103030, also identified as the Cembre A1-M3, is a high-quality non-insulated copper ring terminal designed for secure termination of flexible and low-stranded copper conductors. As part of the established Cembre A-M series, it provides reliable electrical conductivity and mechanical strength for industrial wiring, control panels and electrical equipment.
Manufactured from high-purity electrolytic copper, the A1-M3 terminal is annealed to improve ductility and electrolytically tin plated to provide enhanced resistance to oxidation and corrosion. Its chamfered, funnel-shaped conductor entry helps guide cable strands into the barrel, while the inspection hole allows installers to confirm that the conductor has been inserted correctly before crimping.
Designed for 4–6 mm² copper conductors and an M3 fixing stud, the Cembre 2103030 is suitable for compact electrical connections where dependable performance and consistent crimp quality are essential. Its straight, single-hole palm and short-barrel construction make it ideal for switchgear, machinery, control cabinets and general industrial installations.
Key Advantages
- Reliable non-insulated ring terminal for copper conductors.
- Suitable for 4–6 mm² flexible and low-stranded cables.
- M3 stud connection for compact electrical terminations.
- Manufactured from high-purity electrolytic copper for efficient conductivity.
- Electrolytically tin-plated surface helps resist oxidation and corrosion.
- Inspection hole enables quick verification of conductor positioning.
Key Features
- Cembre A-M series copper ring terminal.
- Manufacturer part number 2103030.
- A1-M3 product designation.
- 4–6 mm² conductor capacity.
- M3 screw and stud compatibility.
- Annealed copper construction for optimum ductility.
- Chamfered barrel entry for easier conductor insertion.
- Integrated inspection hole for installation checks.
Secure Copper Cable Termination
Ring terminals create a durable electrical connection by securing the terminal palm beneath a screw, stud or bolt. Unlike push-fit connections, the closed ring design remains captured by the fixing even if the screw becomes partially loosened, helping provide a dependable connection in equipment exposed to movement or vibration.
The Cembre A-M series is engineered to combine efficient electrical conductivity with strong mechanical retention. Correctly crimping the A1-M3 with a compatible tool permanently compresses the barrel around the conductor, producing a stable, low-resistance termination suitable for professional electrical installations.
Typical Applications
- Industrial control panels and electrical cabinets.
- Switchgear and distribution equipment.
- Machinery and factory automation systems.
- Motor control and power supply connections.
- Earthing and bonding conductors.
- Maintenance, repair and electrical installation work.
Technical Specifications
Tick the specs you need, then view products that match.
| Number of Fixing Holes | 1 | |
|---|---|---|
| Conductor Size | 4–6 mm² | |
| Stud Size | M3 | |
| Material | Copper | |
| Palm Angle | Straight (0°) | |
| Suitable Conductor Material | Copper | |
| Device Type | Copper Tube Lug | |
| Series | A-M | |
| Manufacturer part number | 2103030 | |
| Product type | Non-insulated copper ring terminal | |
| Conductor range | 4–6 mm² | |
| Compatible conductor material | Copper | |
| Stud size | M3 | |
| Stud-hole diameter | 3.2 mm | |
| Conductor entry diameter | 3.6 mm | |
| Palm width | 7.5 mm | |
| Overall length | 20.5 mm | |
| Barrel length | 8 mm | |
| Recommended stripping length | 9 mm | |
| Material | High-purity electrolytic copper | |
| Surface treatment | Electrolytic tin plating | |
| Operating temperature | -50 to +150 °C | |
| Number of fixing holes | 1 | |
| Inspection hole | Yes | |
| Crimping geometry | Hexagonal or indent | |
| RoHS compliant | Yes | |
| Minimum pack quantity | 100 pieces | |
| HS Code | 85369010 | |
| Country of Manufacture | Italy |
Frequently Asked Questions
What is the Cembre 2103030 used for?
The Cembre 2103030 is used to create secure crimped ring connections on copper conductors in control panels, machinery, switchgear and other electrical equipment.
What cable size is suitable for the Cembre A1-M3?
The A1-M3 is designed for flexible and low-stranded copper conductors with a cross-sectional area of 4–6 mm².
What stud size does this ring terminal fit?
The terminal is designed for an M3 stud or screw and has an approximate fixing-hole diameter of 3.2 mm.
What material is the Cembre 2103030 made from?
It is manufactured from high-purity electrolytic copper and finished with electrolytic tin plating to support reliable conductivity and corrosion resistance.
Does the A1-M3 include an inspection hole?
Yes. The barrel includes an inspection hole that allows the installer to verify that the conductor has been inserted to the correct position before crimping.
Trusted Electrical Connections from Cembre
Cembre A-M series ring terminals are designed to provide electrical installers, panel builders and maintenance engineers with reliable conductivity, strong mechanical retention and consistent crimped connections.
