Polyurethane enameled wire VS Polyester enameled wire

What is the difference between polyurethane enameled wire and polyester enameled wire?

Both polyurethane enameled wire and polyester enameled wire are enameled wire, but there are certain differences between them. The main differences between the two enameled wires are:

✅ 1. Different insulation levels

Polyester enameled wires are mostly B and F class, while polyurethane enameled wires are mostly F and H class.

✅ 2. Different composition

Polyester enameled wires are composed of copper conductors and polyester resins; polyurethane enameled wires are composed of copper conductors and polyurethane resins.

✅ 3. Different thermal levels

The thermal level of polyester enameled wire is 130, and the thermal level of enameled wire after modification is 155; the thermal levels of polyurethane enameled wire are 130, 155, and 180.

✅ 4. Different uses

Polyester enameled wire is mainly used for electronic communication lighting coils, sealed submersible motors, micro generators, heat-resistant transformers, contactors, and solenoid valves. Polyurethane enameled wire is mainly used for relays, micromotors, small transformers, degaussing coils, ignition coils, water stop valves, magnetic heads, and communication equipment wires.

Which is better, polyester enameled wire or polyurethane enameled wire?

Comparing polyester enameled wire and polyurethane enameled wire, each has its own strengths, and it is not necessarily better than the other. Customers should choose the right type of enameled wire according to your needs.

• 1. Polyester enameled wire

Polyester enameled wire has good mechanical strength, film adhesion, excellent electrical, scratch resistance, chemical resistance, thermal stability and solvent resistance; but its weakness is poor heat shock resistance and low moisture resistance.

• 2. Polyurethane enameled wire

Polyurethane enameled wire has direct solderability, good high-frequency resistance, easy coloring and good moisture resistance; its disadvantages are slightly poor mechanical strength, low heat resistance, and poor flexibility and adhesion of large-size wires.

What are the uses of enameled wire?

Enameled wire is a winding wire, which consists of a conductor and an insulating layer. It has mechanical, chemical, electrical and thermal properties and is widely used.

• 1. Household appliances: used as compressor windings on refrigerators, freezers, air conditioners and cryogens; motor windings for washing machines and vacuum cleaners; deflection coil windings for color TVs; electronics, inductors, mobile phone wireless chargers, etc.
• 2. Power tool industry: stator and rotor coils for electric hammers, electric saws, cutting machines and other motors.
• 3. Automobile and motorcycle industry: widely used in coils for automobile generators, new energy vehicles, electric two-wheel, three-wheel and four-wheel generators, starter motors, ignition devices, power steering wheels, oil gauges, etc.
• 4. Power industry: transformer winding coils.
• 5. Instrument industry: inductor coils, etc.

Original Source:Magnet Wires for Power Industry