14.3 kV Breakdown Voltage and Balanced MD/TD Strength for Motor Slot Liner and Wedge Applications
Product Overview
Motor insulation film has to do more than insulate. It has to slide into stator slots without tearing, hold its shape around wedge inserts, and survive automated winding. The 75μm PET Motor Insulation Film is built for this. A hazy surface gives it excellent handling properties, and its good stiffness helps it stay in place once inserted. With a 14.3 kV breakdown voltage and balanced 244/249 MPa MD/TD tensile strength, it delivers the mechanical reliability motor manufacturing lines depend on.
Technical Characteristics
The following values are typical data for the 75μm specification. They are not intended as limiting specifications.
- Material: PET (Polyethylene Terephthalate)
- Thickness: 75 μm
- Tensile Strength: MD 244 MPa / TD 249 MPa
- Elongation at Break: MD 158% / TD 155%
- Thermal Shrinkage at 150°C, 30min: MD 1.3% / TD 0.6%
- Breakdown Voltage: 14.3 kV
- Volume Resistivity at 20°C: 5E+17 Ω·cm
- Dissipation Factor at 20°C, 1kHz: 43
- UL746B: RTI Electrical 105°C, Mechanical 105°C
Key Properties
- Hazy surface for excellent handling and anti-blocking
- Good stiffness to be inserted into motor slots
- 14.3 kV breakdown voltage for reliable motor insulation
- Balanced MD/TD tensile strength for automated winding
Applications
75μm PET Motor Insulation Film is used for electrical insulation such as motor slot liners, wedges, and die-cut insulation parts. It suits motor manufacturing, transformer insulation, and general electrical insulation converting.
Why Choose Jinlu Film as Your Supplier
Jinlu Film is a PET Motor Insulation Film Supplier, Manufacturer, and Factory with factory-direct pricing, stable thickness control, and consistent dielectric performance. As a factory-backed supplier, we support custom slitting and sheet cutting, export-grade packing, and global shipping. If you are comparing PET Motor Insulation Film suppliers, request a sample and compare our batch data against the spec sheet.
