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. Marelli Motori electric motors series B4C, B5C – industrial low-voltage asynchronous electric motors cover a power range up to 710 kW, the housing of these electric machines is made of cast iron (cast iron housing).
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 and an extended catalog on asynchronous electric motors of the B5C series with an axis height of 500 mm presented in this section.
Technical parameters of TEFC electric motors Marelli Motori series B4C, B5C
- Type of housing construction: cast-iron housing with cooling fins and stiffeners, resistant to vibration loads;
- Rated power: 45 – 710 kW;
- Operating speed range: 500 /600 /750 /1000 /1500 /3000 об/мин;
- Operating voltage range: 230V /400V /690V;
- Overall height: 315 – 400 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, IC418;
- Insulation class: F;
- Temperature class: B;
Standard sizes
B4C 315 S2, B4C 315 MA2, B4C 315 MC2, B4C 315 MD2, B4C 315 ML2;
B5C 355 LA2, B5C 355LB2, B5C 355LC2, B5C 355LD2, B5C 355LE2, B5C 400 LA2, B5C 400LB2, B5C 400LC2.
Version 1500 rpm:
B4C 315 MA4, B4C 315 MC4, B4C 315 MD4, B4C 315 ML4;
B5C 355 LA4, B5C 355 LB4, B5C 355 LB4, B5C 355 LD4, B5C 355 LE4, B5C 355 LF4, B5C B5C 400 LA4, B5C 400 LB4, B5C 400 LC4.
1000 rpm version:
B4C 315 MA6, B4C 315 MB6, B4C 315 MC6, B4C 315 MD6, B4C 315 ML6, B4C B5C 355 LA6;
355 LB6, B5C 355 LC6, B5C 355 LD6, B5C 400 LA6, B5C 400LB6, B5C 400LC6, B5C 400LD6.
750 rpm version:
B4C 315 MA8, B4C 315 MC8, B4C 315 MD8, B4C 315 ME8;
B5C 355 LA8, B5C 355 LB8, B5C 355 LC8, B5C 355 LD8, B5C 400 LB8, B5C 400 LC8, B5C 400 LD8.
Version 600 rpm:
B4C 315 MA10, B4C 315 MC10, B4C 315 MD10;
B5C 355 LA10, B5C 355 LB10, B5C 355 LC10, B5C 355 LD10, B5C 400 LA10, B5C 400 LB10, B5C 400 LC10.
500 rpm version:
B4C 315 MA12, B4C 315 MC12, B4C 315 MD12;
B5C 355 LA12, B5C 355 LB12, B5C 355 LC12, B5C 355 LD12, B5C 400 LA12, B5C 400 LB12, B5C 400 LC12.
