EC fan speed control module for refrigerants R407C, R448/9A, R404A, etc. Setting 15.5 bar, setting range 10 ... 21 bar. Maximum pressure 36 bar, 7/16" UNF connection. 0-10V DC 1mA ´ signal, IP 65 protection with PS3-N cable**. Ambient temperature range -30 ... 70°C