Description
Overview
300g spool of polyurethane enameled copper wire, QA-1/155 grade, in diameters from 0.04mm to 1.5mm and in two insulation colours — natural copper or red. The colour makes it easy to distinguish windings from each other in multi-coil assemblies.
Specifications
- Grade: QA-1/155 (polyurethane enamel, direct solderable)
- Net weight: 300g per spool
- Available diameters: 0.04 / 0.05 / 0.06 / 0.07 / 0.08 / 0.09 / 0.1 / 0.13 / 0.15 / 0.2 / 0.25 / 0.3 / 0.4 / 0.5 / 0.65 / 0.8 / 1.0 / 1.3 / 1.4 / 1.5 mm
- Insulation colours: copper (natural) or red
- Maximum continuous temperature: 155°C
Purpose
A smaller spool for people who need several sizes rather than a kilogram of one. The red insulation is the practical feature: when a transformer has a primary and a secondary wound from the same gauge, colour-coding the windings removes a whole class of wiring mistakes.
Applications
- Transformer and inductor winding
- Motor and relay coils
- Multi-winding assemblies needing colour distinction
- Jumper wires and small electromagnets
How to Use
- Select diameter and colour per winding; use red for one winding and natural copper for the other.
- Wind with the spool upright and the wire paying off freely.
- Terminate by soldering at 360–400°C — the polyurethane enamel burns back at soldering temperature.
- Keep the coil below 155°C continuous.
Need help specifying wire?
Review conductor size, insulation, voltage drop, winding requirements and inspection criteria.




































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