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Abstract image of copper wire strands forming an electric vehicle.

Advancing eMobility – Engine performance starts with PI

ELANTAS Polyimide (PI) Wire Enamels provide durable primary insulation at high voltages for magnetic windings in electric motors.

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Electric motors are at the heart of modern e-mobility. To ensure maximum efficiency, performance, and reliable long-term operation, the magnetic windings used in these motors must reliably withstand high voltages, thermal stress, and continuous electrical load throughout their lifetime. ELANTAS Polyimide (PI) Wire Enamels provide a durable and highly effective primary insulation for copper wires, specifically developed for high-voltage applications.

ELANTAS Polyimide Wire Enamels at a glance

Advanced engine protection
Excellent adhesion on copper wires even under high electrical and thermal stress.
Enhanced engine performance
Higher performance with more compact motor design thanks to increased power density.
Optimized system efficiency
Corona and oil resistance combined with low permittivity to minimize electrical losses.
Extended engine lifetime
Improves durability and reliability through superior thermal and electrical insulation.
Wire Enamels PI

Engineered to perform

Tailored polyimide insulation for every performance requirement

ELANTAS’ unique globally available portfolio offers application-specific PI formulations with different properties, allowing the insulation to be precisely tailored to meet every dedicated customer need. Perfectly aligned with the required performance profile, the diverse PI formulations deliver enhanced corona resistance, special oil resistance, and very low permittivity to reduce electrical stress within the motor.

Close-up of copper winding wires with layers of insulation.
Close-up of copper winding wires with different layers of enamel insulation.

High‑performance PI insulation for electric and hybrid drives

The resulting high-quality PI insulation products are optimally matched to a broad voltage range from 400 V up to 1,200 V and ensure enhanced performance in both pure electric and hybrid motors. By uniting multiple PI layers within a single insulation system, ELANTAS PI Wire Enamels allow for a strong primary insulation for traction motors in e-mobility, setting new standards for the next generation of electric drives.