CG677 advantages: ■ 67 % metal content ^ High electrical conductivity ■ 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 brush wear trigger ■ Silver-tamped connections ^ Improved performance during production peaks and added resistance suited to any climatic condition including extremes IMPROVED WIND GENERATOR PERFORMANCE THANKS TO LOWER RUNNING TEMPERATURES - Increased brush and slip ring life - Designed for Higher Loads - 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

Relative density: 4 Resistivity: 20 μΩ.cm / 7.9 μΩ.in Flexural strength: 65 МPa / 9,427 PSI Metal content: 67 % Mersen CG677 (p/n HCH-30X) drop-in replacement brush for Mersen CG626 (p/n HCH-3) and CG626X (p/n HCH-3X) Recommended operating conditions*:  Current density: 12-20 А/cm2 / 75-125 A/inch²  Linear speed: < 30 m/seс / 5,900 fpm  Pressure on carbon brush: 20 kPa / 2.9 PSI * 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 groove...