... ) Relative humidity: 98% c) Vibration frequency: 2 - 80Hz, acceleration at 0.7g d) Pollution: class III e) Installation: type III f) "TH ... IP67 9) Frequency: AC 50 - 60Hz 10) Classification: A type, B type and C type 11) Used with high inductive interference voltage areas, normally ... -16, 22, 25, 30 b) AD22B-22 of B, C, D, E c) According to clients' requirements 9) Lamp covers are made ...