Totally Enclosed Eater Cooled Motors (TEFC Motors) is a design of asynchronous electric motors in a fully enclosed enclosure with a degree of protection IP55, IP56, IP65 with self–ventilation or forced cooling. Electric motors of alternating current TEFC Marelli Motors are manufactured with a power of up to 2 MW and a voltage of up to 10 kV.
Marelli Motori B5H Series Electric motors – industrial high-voltage electric motors in a cast-iron case.
Feature of operation: the design of the electric motor provides complete protection of the electromagnetic system from the effects of a negative external environment, forced cooling can be installed in severe operating conditions.
Detailed information about Marelli Motori high voltage electric motors presented in this section.
Technical parameters of TEFC Marelli Motori electric motors
- Type of housing construction: cast-iron housing with cooling fins and stiffeners, resistant to vibration loads;
- Rated power: up to 2000 kW (up to 2 MW);
- Operating speed range: 750 /1000 /1500 /3000 rpm;
- Operating voltage range: 3000V, 6000V, 11000V;
- Overall height: 71 – 500 mm;
- Mounting design: IM 1001, IM1002, IM 1051, IM 1061, IM 1071, IM 1011, IM 1031, IM 2001, IM 2011, IM 2031, IM 3001, IM 3011, IM 3031;
- Degree of protection housing: IP55, IP56, IP65;
- Degree of protection: IC411, IC416;
- Insulation class: F;
- Temperature class: B;
Standard sizes
B5H 355 LA2, B5H 355 LB2, B5H 355 LC2, B5H 400 LA2, B5H 400 LB2, B5H 400 LC2, B5H 450 LA2, B5H 450 LB2, B5H 450 LC2, B5H 450 LD2, B5H 500 LA2, B5H 500 LB2, B5H 500 LC2.
Version 1500 rpm:
B5H 355 LA4, B5H 355 LB4, B5H 355 LC4, B5H 355 LD4, B5H 400 LA4, B5H 400 LB4, B5H 400 LC4, B5H 450 LA4, B5H 450 LB4, B5H 450 LC4, B5H 450 LD4, B5H 500 LA4, B5H 500 LB4, B5H 500 LC4.
1000 rpm version:
B5H 355 LA6, B5H 355 LB6, B5H 355 LC6, B5H 400 LA6, B5H 400 LB6, B5H 400 LC6, B5H 450 LA6, B5H 450 LB6, B5H 450 LC6, B5H 450 LD6, B5H 500 LA6, B5H 500 LB6, B5H 500 LC6.
750 rpm version:
B5H 400 LA8, B5H 400 LB8, B5H 400 LC8, B5H 450 LA8, B5H 450 LB8, B5H 450 LC8, B5H 450 LD8, B5H 500 LA8, B5H 500 LB8, B5H 500 LC8.
