Energy-saving motors first used in telephone exchanges
25 years ago, ZIEHL-ABEGG laid the foundations for the launch of energy-saving EC motors in ventilation technology. This came as the result of Germany’s telephone exchanges changing to digital technology. The new technology required safe and reliable cooling of the operating rooms. The Austrian post and telegraph administration service (the forerunner of today’s Telekom Austria) also moved to modern technology in the 1990’s