Non-insulated ring terminal — A03-M3
The A03-M3 is a non-insulated ring terminal from Cembre's A‑M series, designed to create a mechanical and electrical connection to copper conductors by crimp-type termination. The terminal is made of electrolytic copper tube and is annealed to ensure ductility. The surface is electrolytically tinned to reduce the risk of oxidation.
Function and application
The A03-M3 is used for crimp-type connections on copper conductors. The product is designed to receive a conductor, which is inserted into the barrel and secured by the correct number of crimps. The terminal's construction includes an inspection hole (spy hole) that allows visual inspection of the conductor's insertion before crimping.
Installation (same steps as in the manufacturer's instructions)
- Select the correct connector for the copper conductor used, according to the manufacturer's table.
- Select the correct crimping tool and die as specified in the data sheet.
- Strip the insulation to the recommended stripping length without damaging the conductor strands.
- Insert the conductor completely into the terminal barrel so that the inspection hole can be used for visual inspection.
- Perform the specified number of crimps, starting from the tongue side of the terminal.
The product's primary features—material, tin plating, and inspection hole—are specified by the manufacturer and can be found in Cembre's data sheet.
See data sheet from the manufacturer
Specifications
- Product name: A03-M3
- Manufacturer: Cembre
- Series: A‑M
- Type: Non-insulated ring terminal
- Material: Electrolytic copper tube (min. 99.9% copper)
- Treatment: Annealed for ductility
- Surface: Electrolytically tinned (thickness min. 3 µm specified for A‑M series)
- Conductor area: 0.25–1.5 mm²
- Screw: M3 (Ø 3.2 mm) — A03‑M3
- Feature: Includes inspection hole (spy hole) for visual inspection
- Termination method: Crimp-type wiring termination
- Listed in data sheet: Cembre's crimping lugs are UL-listed for USA and Canada per UL486A/486B (File no. E125401)
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