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IS 13730/IEC 60317 PART-13/Dual Coated 200°C to 220°C
Empower your heavy-duty electrical configurations with Rational-DC Enamelled Copper Winding Wires. Engineered specifically to withstand punishing thermal overloads and intense electrical friction, this premium wire features an advanced dual-layered insulation system that outlasts standard single-coat variants. Whether you are building high-capacity industrial equipment or rebuilding rugged automotive starters, Rational-DC delivers the ultimate burnout protection and operational longevity required for high-stress electromagnetic fields.
Specifications
Material – 99.9% Pure Electrolytic Tough Pitch (ETP) Copper
Conductor Type – Solid Round Wireandard
Colour – Deep Polished Bronze Brown
Insulation Material – Base Coat: Polyester(imide) + Top Coat: Polyamide (Nylon Overcoat)
Insulation Type – Dual-Coated Class DC
Usage/Application – Heavy Industrial DC Motors, Power Gensets, Armatures, Current Transformers, High-Vibration Automotive Alternators
STD Wire Gauge – SWG 8.0 to 42.0 (Comprehensive Thick-to-Fine Range) – 10.0 – 42.0
Quality Maintain Every Time
Operating across a broad spectrum from heavy SWG 8 down to fine SWG 42 demands distinct quality validation protocols. Every production run is subjected to rigorous high-temperature heat shock matrices and mandatory scrape-resistance testing to evaluate film adhesion. Our state-of-the-art inline laser micrometres continuously verify concentricity, ensuring that the dual-coat protective barrier is distributed perfectly evenly around the copper core with zero thinning or micro-fissures.
Dual-Layered Thermal Armouring Against Peaks
Defend your coils against extreme temperature spikes. The base polyesterimide layer provides exceptional core dielectric strength, while the tough polyamide (nylon) outer overcoat acts as a thermal shield rated up to 200°C. This combination prevents the insulation from softening, blistering, or degrading during severe, continuous duty cycles or sudden high-amperage surges typical of heavy industrial DC machinery.
Maximum Structural Flexibility for Thick-Gauge Bending
Eliminate the stress of micro-cracking when shaping heavy-gauge conductors. Thanks to our specialized copper annealing process, even the thickest SWG 8 profiles in this category exhibit superior ductility and low spring-back properties. The outer nylon wrap adds an incredibly slippery, self-lubricating surface that prevents scuffing, scraping, and coating separation when forcing the wire into tight, high-density armature slots.
namel coating acts as a protective barrier, safeguarding the copper wire from moisture, corrosion, and electrical interferences. Rest assured that your electrical components will remain well-insulated and protected, ensuring long-lasting and safe performance.
Chemical and Moisture Resilience in Unsealed Spaces
Ensure uncompromised safety in open-air and challenging environmental setups. The specialized dual-coat chemical bond creates a non-porous barrier that repels moisture ingress, aggressive industrial solvent vapours, and lubricating oils. This makes it an ideal choice for open vents, field coils, and heavy-duty generators that must operate reliably in high-humidity zones or dust-heavy factory environments without experiencing inter-turn short circuits.
