GH hazardous, heavy duty IEC 60309 devices from Eaton's Crouse-Hinds Division are used where hazardous gases may be present, and in areas prone to dust, dirt, vibration, hard use and abuse. Also used in locations where complete protection against water jets and even temporary flooding is required, or in corrosive environments caused by chemicals, atmospheres and water. Commonly used in chemical plants, mining, drilling and steel/grain/flour mills.