Degree of protection Material Ex e II Increased safety Ex de IIC Explosion-proof enclosure Cast-iron Aluminum Connection voltage 3AC 230/400/500/690V Degree of protection Standard IP55, optional IP56, IP65 Self-ventilated Cooling 1MA7 1MA6 1MJ6 1MJ7 3000 rpm 0,18 ... 16 kW 2,5 ... 165 kW 0,37 ... 37 kW 45 ... 132 kW 1500 rpm 0,12 ... 13,5 kW 2 ... 165 kW 0,25 ... 30 kW 37 ... 132 kW 1000 rpm 750 rpm Catalog 0,25 ... 9,7 kW 1,3 ... 135 kW 0,25 ... 22 kW 0,37 ... 15 kW 30 ... 90 kW 18,5 ... 75 kW DA 81.1