27.5 kV Breakdown Voltage and High Stiffness from a Reliable PET Motor Insulation Film Vendor
Product Overview
When stator slots are deep and winding tensions are high, thin films often fail. They wrinkle, tear, or fail to hold their position around the wedge. The 250μm PET Motor Insulation Film is a heavy-gauge solution built to prevent that. It uses a hazy surface to ensure excellent handling and anti-blocking, while its high stiffness allows it to slide firmly into deep slots and stay there. With a 27.5 kV breakdown voltage and balanced 189/189 MPa MD/TD tensile strength, it provides the structural integrity and electrical safety heavy-duty motors demand.
Technical Characteristics
The following values are typical data for the 250μm specification. They are not intended as limiting specifications.
- Material: PET (Polyethylene Terephthalate)
- Thickness: 250 μm
- Tensile Strength: MD 189 MPa / TD 189 MPa
- Elongation at Break: MD 190% / TD 156%
- Thermal Shrinkage at 150°C, 30min: MD 1.1% / TD 0.6%
- Breakdown Voltage: 27.5 kV
- Volume Resistivity at 20°C: 4E+17 Ω·cm
- Dissipation Factor at 20°C, 1kHz: 45
- UL746B: RTI Electrical 105°C, Mechanical 105°C
Key Properties
- Heavy 250μm gauge for maximum mechanical support in deep slots
- Hazy surface for superior handling and anti-blocking
- High stiffness ensures the film stays firmly in the motor slot
- 27.5 kV breakdown voltage for high-voltage motor designs
- UL746B RTI 105°C for reliable thermal performance
Applications
250μm PET Motor Insulation Film is used for heavy-duty electrical insulation such as motor slot liners, wedges, and thick die-cut insulation parts. It is ideal for large motor manufacturing, heavy machinery, and demanding industrial applications.
Why Choose Jinlu Film as Your Vendor
Jinlu Film is a PET Motor Insulation Film Vendor, Manufacturer, Factory, and Supplier with factory-direct pricing, stable thickness control, and consistent dielectric performance. As a factory-backed vendor, we support bulk orders, custom slitting and sheet cutting, export-grade packing, and global shipping. If you are comparing PET Motor Insulation Film vendors, request a sample and compare our batch data against the spec sheet.
