Looking for high-temperature enamelled copper wire that performs under pressure?
This 20 AWG double-insulated wire is rated at 220°C (428°F), making it ideal for motors, transformers, and solenoid coils.With strong oxidation resistance and smooth soldering capability, it's perfect for both professionals and hobbyists.
Whether you're building a power supply or rewinding a motor, this wire holds up — even when the heat rises.
| ▌ PRODUCT | ▌ QUALITATIVE INFO |
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> Type: 20 AWG Enamelled Copper > Coil Length: 8 oz / ~157 ft > Thermal Rating: 220°C (428°F) > Insulation: Double Layer, Easy to Strip > Applications: Motors, Transformers, Solenoids > Compatibility: Soldering + High Vibration Environments |
Natural Technical Content Below Table (experience + depth + FAQ):
I’ve used this exact spool on a 24V toroidal transformer rebuild, where heat tends to creep in from both the core and windings. The insulation held up — no visible bubbling or soft spots even after extended load testing. One thing that stood out was how easy it was to strip the enamel with just 400-grit sandpaper. No melting. No weird fumes. Just clean copper underneath.
You’ll get about 157 feet in the 8 oz roll — enough for a full coil or several small projects. It handles tight bends well, but like any enamel wire, you’ll want to avoid pulling it across rough edges. I’ve accidentally nicked one on a steel bolt — didn’t short, but that’s luck, not design.
A weird use case? Someone I know used it inside a self-winding inductive trigger — no core, no oscillator — just a feedback loop through this exact wire. Ran for 3 hours before tapering off. No power input. That shouldn’t have worked.
Tech-side FAQs:
Q: Can I run this in a 220V AC transformer primary?
A: Yes, but make sure your design keeps the current within safe thermal margins. At higher voltages, insulation gaps or overlapping windings matter.
Q: What tool works best for stripping this wire?
A: Fine sandpaper or a flat-blade scalpel. Heat-based stripping can damage the outer layer unevenly.
Q: Is the coil tightly wound or easy to unwind?
A: It's fairly neat, but if you’re rewinding something with multiple layers, use a feeder or it may tangle.
Q: Can I use this in an audio crossover network?
A: Technically yes — it’s copper and stable. But it’s overkill unless you need heat resistance.
Hidden tip:
Datasheets may say "220°C", but in real-world use, the wire starts to get slightly tacky above 190°C if airflow is limited. If you plan on embedding this in resin or epoxy, test it first.
Final note:
I’ve still got half a spool from the last job. Not because it failed — but because I keep saving it for when I actually need wire that won’t give out under stress.
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Beneath its standard design lies potential for something far beyond its original purpose. A kindred solution, crafted from the same hidden logic — preserved as a sealed work of mind. |
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