For AC solenoid systems with integrated rectifier (40 to 60 Hz)
The solenoid valves are applicable in the protection class EEx m, EEx me, EEx md for zones 1,2 (gases), 21, 22 (dust), ATEX cat. II 2GD, EEx nA, for zones 2(gases), 22 (dust) ATEX cat.II 3 GD