IMPROVED WIND GENERATOR PERFORMANCE THANKS TO LOWER RUNNING TEMPERATURES - Increased brush and slip ring life - Designed for high loads, up to 20 A/cm² (and higher) - Drop-in replacement for turbines with power output upgrade packages A UNIVERSAL / VERSATILE GRADE - Designed specifically for wind power applications in any climatic condition on stainless steel or bronze slip rings - Brushes field-tested successfully to last longer on all platforms even under heavy loads - 67 % metal content for high electrical conductivity - Silver-tamped connections, meaning improved performance during production peaks and added resistance suited to any climatic condition including extreme ones CARBON BRUSHES FOR WIND TURBINES CG677 advantages: ► Low voltage drop ▪ Cool operating temperature ► Good thermal conductivity ▪ Improved heat dissipation, which leads to lower slip ring temperatures ► Good patina and good sliding contact ▪ Optimum performance on both stainless steel and bronze rings ► High thermal stability ▪ No material expansion ► Low and even brush wear ▪ Balanced current distribution in all brushes, eliminating uneven brush wear and delaying

Relative density: 4 Resistivity: 20 μΩ.cm / 8 μΩ.in Flexural strength: 65 МPa / 9,500 PSI Metal content: 67 % Recommended operating conditions*: ▪ Current density: 12-20 А/cm2 / 75-130 A/inch² ▪ Linear speed: < 30 m/seс / 6,000 fpm ▪ Pressure on carbon brush: 18-25 kPa / 2.6-3.6 PSI Current density: 16 A/cm² stainless steel Friction coefficient stainless steel Current density (A/cm²) * CG677 grade has proven itself under heavy operating loads and complete spectrum of climatic conditions. Recommended checks for optimized operation: ▪ adapted cooling – functional ventilation systems ▪ optimized...