Having Trouble Selecting Materials for High-voltage Components? Introducing The JUTAIHPM®LiteHV Series

From 800V high-voltage platforms for new energy vehicles to charging stations, photovoltaic inverters, and industrial circuit breakers, the shift toward higher voltages is placing more comprehensive demands on insulation materials. Materials are no longer merely “casings”; they are now an integral part of the overall electrical safety design.

As system voltage and power density increase, high-voltage connectors, contactors, and circuit breakers must not only withstand high electric fields but also endure prolonged exposure to temperature rise, heat and humidity, contamination, and arc flash risks. The real challenge in material selection lies in the need to simultaneously meet multiple performance requirements.

In the presence of moisture, dust, or contaminants, minute leakage currents may occur on the surface of insulating components. As discharges and heat continue to accumulate, carbonized conductive pathways gradually form on the material’s surface, causing a corresponding decline in insulation performance.

Once materials absorb moisture, their dimensions, mechanical properties, and electrical properties may all change. Therefore, when evaluating insulating materials used in automotive interiors, charging equipment, photovoltaic systems, and industrial environments, one cannot rely solely on dry-condition data obtained in the laboratory; the true test is whether they can maintain stability after exposure to heat and humidity.

The three grades cover different requirements for structural strength, rigidity, and heat resistance. The specific part selection still depends on wall thickness, molding process, electrical configuration, and final validation.

The JUTAIHPM® LiteHV series is primarily designed for insulated structural components used in the new energy vehicle, charging equipment, industrial electrical, and photovoltaic sectors.

Typical applications include high-voltage connectors, charging ports, contactor housings, relays and coil frames, insulated structural components for charging stations, high-voltage circuit breakers, photovoltaic junction boxes, and insulated components for inverters.

From 400V to 800V, and from new energy vehicles to photovoltaics, energy storage, and industrial electrical systems, electrical systems are evolving toward higher voltages, higher power densities, and more compact sizes. Consequently, the requirements for materials have shifted from simply being heat-resistant or flame-retardant to a set of comprehensive challenges.