... station, monitoring station,transmitters, computers, frequency converter, transformer, switchgear, automatic controlling device, high-voltage control cabinet, cable TV equipment, machine tool power supply and control device ... 150W 120W80WHeat Exchanger’s Power supply220V50Hz220V50Hz220V50HzWorking Temperature-40°C~+45°C-40°C~+45°C-40°C~+45°C Remark: for cabinets with heat exchanger and ...