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IS 13730/IEC 60317 PART-3/+155°C
Optimize your precision motor and coil assemblies with SEPL Class-F Fine-Gauge Enamelled Wires. Specifically tailored for application-critical micro-windings, this product line focuses exclusively on thin-diameter profiles that bridge the gap between heavy industrial wires and ultra-fine electronics. By pairing a high-purity copper core with a resilient thermal film, SEPL gives manufacturers the perfect material for compact, mid-temperature components that demand maximum coil density without sacrificing electrical insulation under continuous thermal stress.
Specifications
Material – Electrolytic Tough Pitch (ETP) Copper
Conductor Type – Fine Round Wire
Colour – Glossy Brown
Insulation Material – Modified Polyester Resin (Class-F)
Insulation Type – Precision Single / Heavy Coat
Usage/Application – Fractional Horsepower (FHP) Motors, Mixer-Grinders, Small Power Tools, Instrumentation Transformers, Auto-Electrical Coils
STD Wire Gauge – 34.0 to 40.0 (Exclusive Fine-Gauge Selection)
Quality Maintain Every Time
Managing thin-gauge wire requires meticulous oversight, which is why our manufacturing line employs real-time optical diameter monitoring. Every spool within the SWG 34 to 40 range is rigorously audited for outer-diameter consistency and roundness to prevent winding imbalances. We conduct specialized high-voltage continuity spark testing to isolate and eliminate micro-pinholes, along with spring-back tests that ensure the wire retains its correct ductility, delivering trouble-free performance on your production floor.
Thermal Defence Against Overload Burnout
Protect your compact motor designs from the devastating effects of localized heat build-up. The Class-F modified polyester coating is engineered to withstand continuous operating temperatures of up to 155°C, making it highly resistant to accidental overloads and thermal aging. This advanced heat baseline ensures that tightly packed windings inside high-rpm power tools or kitchen appliances won’t short-circuit when pushed to their operational limits.
High Space-Factor for Compact Windings
Achieve a superior coil fill-factor inside highly restricted slot. Because our SWG 34 to 40 wires are insulated with an incredibly thin yet chemically tough enamel film, you can pack more turns into a smaller cross-sectional area. This maximizing of the copper-to-slot ratio directly translates to stronger magnetic fields, higher motor efficiency, and reduced overall frame sizes for your finished electrical products.
Resilient Film Adhesion for High-RPM Operations
Eliminate the risk of insulation peeling or cracking under mechanical duress. Our specialized curing process creates a powerful molecular bond between the copper core and the polyester enamel. This ensures the insulation layer stretches seamlessly alongside the conductor during high-tension machine winding, allowing the finished coils to easily survive the intense centrifugal forces and vibrations typical of high-speed armatures and rotors.
