30/32 Gauge Enameled Copper Wire
30/32 gauge enameled copper wire In the fields of electrical engineering and precision manufacturing, 30/32 gauge enameled copper wire specifically refers to 30-gauge and 32 gauge enameled copper wires under the American Wire Gauge (AWG) system, and such wires are also known as magnet wires. Driven by the trend of miniaturization of electronic components, 30 awg and 32 awg are key models in the fine wire gauge field. These fine-gauge wires are mainly used in precision electromagnetic components that require extremely high turn density, are space-constrained, and have low current transmission. The reason why magnet wires can achieve tight winding of coils is that their insulation layer not only ensures sufficient dielectric strength but also minimizes the space loss between wires.
What are the specifications of 30/32 Gauge Enameled Copper Wire?
| Parameter | AWG30 | AWG32 |
| Conductor Diameter | 0.254 mm | 0.203 mm |
| Cross-Sectional Area | 0.0507 mm² | 0.0316 mm² |
| Conductor Resistance (20℃) | 361 Ω/km | 583 Ω/km |
Common Insulating Varnishes for 30/32 Gauge Enameled Copper Wire
| Insulating Varnish Type | Temperature Resistance Class | Long-Term Operating Temperature | Dielectric Strength | Key Characteristics |
| Polyimide (PI) | Class C | 220℃ | ≥2500V/mm | High temperature resistance, radiation resistance, chemical corrosion resistance, and low thermal expansion coefficient. |
| Polyester Imide (PEI) | Class F | 155℃ | ≥2000V/mm | High mechanical strength, low dielectric loss, and better solvent resistance than polyester. |
| Polyester (PET) | Class B | 130℃ | ≥1500V/mm | Low cost, good flexibility, suitable for high-speed winding. |
| Polyurethane (UEW) | Class B | 130℃ | ≥1800V/mm | Direct high-frequency soldering (no paint stripping required), low dielectric loss at high frequencies. |
| Polyester Imide/Nylon Composite | Class F | 155℃ | ≥2200V/mm | The outer nylon layer enhances wear resistance, while the inner polyester imide layer provides heat resistance and reduces the winding friction coefficient. |
| Polyamide-Imide (PAI) | Class H | 180℃ | ≥2500V/mm | Maintains high mechanical strength at high temperatures, resistant to refrigerant (e.g., R134a) and lubricating oil corrosion. |
Applications of 30/32 Gauge Enameled Copper Wire
The characteristics of 30/32 Gauge Enameled Copper Wire can be summarized as follows: relying on “ultra-fine diameter + thin insulation layer,” they are suitable for many “small volume, high turn count, low current” scenarios, and cover the needs from conventional to extreme environments through insulating varnishes with different temperature resistance classes.
| Application Scenarios | Temperature Resistance Class | Corresponding Insulating Varnish Type | Core Matching Reasons |
| Household Razor Micro-Motors | 130℃ (Class B) | Polyester (PET) / Polyurethane (UEW) | The motor diameter is ＜ 10mm, and 30/32 AWG can wind ＞ 500 turns to meet torque requirements; the operating temperature rise is ＜ 80℃, so 130℃ temperature resistance is sufficient and the cost is low. |
| Automotive ABS System Wheel Speed Sensors | 155℃ (Class F) | Polyester Imide (PEI) | The short-term high temperature in the engine compartment reaches 150℃, and 155℃ temperature resistance ensures safety; the sensor installation size is ＜ 8mm, and 32 AWG can be embedded in narrow spaces. |
| Industrial Inverter Micro-Current Transformers | 180℃ (Class H) | Polyamide-Imide (PAI) | The temperature in the heat dissipation area of the inverter is 50~80℃, and 180℃ temperature resistance ensures stability; the transformer requires a slot fill factor ＞ 80%, and 30 AWG allows dense winding. |
| Aerospace Micro-Temperature Sensors | 220℃ (Class C) | Polyimide (PI) | The local high temperature of aerospace equipment reaches 220℃, and conventional varnishes will melt; the sensor volume is ＜ 5mm, and 32 AWG can wind ＞ 1000 turns to improve sensitivity. |
LP Industry’s Main Specifications for 30/32 Gauge Enameled Copper Wire
| Name | 30/32 Gauge Enameled Copper Wire |
| Conductor | Copper |
| Dimension | 0.254 mm/0.203 mm |
| Thermal Class | Class 130, Class 155, Class 180,Class 220 |
| Standard | IEC,NEMA,GB,JIS |
| Certificate | UL |
| Packing | PT-4-PT-200 or ply-wood-spool |
Why Choose Us?
1.We use high-quality raw materials: high-purity conductive metals + high-quality insulating varnish = high-quality Enameled Wires.
2.For each batch of products, we conduct sampling inspections. We perform tests including structural dimension testing, mechanical property testing, breakdown voltage testing, and direct solderability testing, and ensure the test results comply with the standards of IEC and GB .
3.Our products have obtained certifications such as UL, CE, REACH , and RoHS , so you can purchase with complete confidence.
4.Our team has over 10 years of export experience, enabling us to deliver the goods to you as soon as possible without delaying your production.
Contact us to obtain the quotation for 30/32 Gauge Enameled Copper Wire