Asynchronous electric motors Marelli Motori B4J, B5J

Totally Enclosed Water Cooled Motors (TEWC Motors) is a design of electric motors in a fully enclosed housing with an integrated water heat exchanger. 

Marelli Motori electric motors The B4J and B5J series cover a power range of up to 4000 kW and an operating voltage of up to 6 kV, the housing provides protection of at least IP55/IP56. 

Feature of operation: reduction of the mutual influence of the electric motor and the environment on each other, heavy duty operation, high cooling efficiency, reduction of weight and size parameters. 

Technical parameters of TEWC electric motors Marelli Motori series B4J, B5J

• Type of housing construction: welded steel housing with integrated heat exchanger, equipped with stiffeners, vibration resistant;
• Rated power: up to 4000KW (up to 4MW);
• Operating speed range: 500 /750 /1000 /1500 rpm;
• Operating voltage range: 380V, 690V, 3300V, 6600V;
• Overall height: 355 – 630mm;
• Mounting design: IM1001, IM1002, IM1051, IM1061, IM1071, IM1011, IM1031, IM2001, IM2011, IM2031, IM3001, IM3011, IM3031;
• Degree of protection housing: IP55, IP56;
• Degree of protection: IC71W (water cooling via an integrated heat exchanger in the housing);
• Type of coolant: fresh water;
• Operating pressure: ≤6 atm;
• Test pressure: ≤9 atm;
• Insulation class: F (on request H);
• Temperature class: B (on request F);