Motors of strengthened structure, unlike the flameproof motors, are notable to contain an explosion of gases inside of their frame, but theyare also designed for operation in Group II, Zone 1. The safety ofoperation of the motors is achieved thanks to a number of specialconstruction solutions, ensuring low temperature rise of the casing andelimination of the danger of the motors sparking. Accordance with ATEX directives
Eexe for Cast Iron frame size 80:355