Product Overview
Description
The A3-M4 is a ring (tubular) lug from the Cembre A‑M series, designed for copper conductors. The product is a crimp-type connection and is specified for a single conductor cross-section of 16 mm². The A3-M4 accepts an M4 screw (ØD 4.3 mm) and has an inspection hole (spy hole) on the tongue.Material and Approvals
The A3-M4 is made of electrolytic copper (≥99.9%), is annealed, and electrolytically tin-plated. According to the manufacturer's documentation, the A‑M series is UL‑listed according to UL486A‑486B (File no. E125401) and is stated in the documentation as approved up to 35 kV. The standard packaging is 100 units.Installation and Use
The description in the manufacturer's installation instructions indicates the following verified working steps when using the A3-M4:- Select the correct lug for the copper wire size used.
- Select the correct crimping tool and corresponding dies.
- Strip the cable to the recommended length without damaging the conductor.
- Insert the conductor into the tubular part of the lug.
- Apply the prescribed number of crimps, starting from the tongue of the lug.
Documentation
See datasheet from the manufacturerSpecifications
- Product Name: A3-M4
- Manufacturer: CEMBRE
- Series: A‑M
- Type: Ring (tubular) terminal / crimp lug for copper conductors
- Stated conductor cross-section: 16 mm² (single conductor)
- Screw: M4 (acceptable screw, ØD 4.3 mm)
- Inspection hole (spy hole): Yes
- Material: Electrolytic copper (≥99.9%), annealed
- Tin plating: Electrolytic tin (min. 3 µm according to manufacturer documentation)
- UL‑listing: UL486A‑486B (File no. E125401), stated in documentation up to 35 kV
- Standard packaging: 100 units
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