Insulation class is a thermal classification system used in Electrical Engineering Materials to indicate the maximum temperature that the insulation material in an electrical device (like a motor, transformer, or generator) can safely withstand for its expected service life without excessive deterioration. International standards like IEC 60085 and NEMA MG-1 assign insulation classes (Y, A, […]
The electrical insulation system for wires used in generators, electric motors, transformers, and other wire-wound electrical components is divided into different classes by temperature and temperature rise. The electrical insulation system is sometimes referred to as insulation class or thermal classification. Sl. No. Insulation Class Temperature Materials Used 1. Y 90°C Cotton, Silk, Paper, Wood (without
You cannot copy content of this page
