Company Marelli Motori has developed a wide range of models of electric power generators of various designs and a wide range of power values up to 12,500 kVA covering low, medium and high levels.
Generator design MJB It is enclosed in a rigid frame made of durable steel and additional stiffeners for even greater strength. Cast iron body (grey and with spherical graphite), forged shaft made of laminated carbon steel, diameter from 290 mm and above, design on request. The stator/rotor windings are coated with unsaturated polyester and polyamide resins, insulation class – H (synthetic enamel). Protection against radio interference of class B (EN 55011). Installation is horizontal, other variations on request.
It is used for operation in the main mode on variable power (PRP), in continuous mode on full power (COP), in standby mode Stand-by, for emergency power supply, uninterruptible power supply, portable option.
Technical characteristics of the MJB series of electric current generators of drop- and explosion-proof open design (ODP).
- Rated power for 4-pole generators: up to 5000 kVA;
- Rated power for 6-pole generators: up to 5000 kVA;
- Rated power for 8-pole generators: up to 6500 kVA;
- Rated power for 10-pole generators: up to 6000 kVA;
- Rated power for 12-pole generators: up to 5400 kVA;
- Rated operating voltage: up to 1000 V;
- Industrial frequency: 50 Hz (European standard)/60Hz (North American standard);
- Overall height: 160 – 900 mm;
- Mounting design: IN 1001, IN 1101 in accordance with IEC 60034-7;
- The degree of protection of the case: IP23, optional up to IP44;>
- Degree of protection: IC 01;
- Insulation class: H;
- Temperature class: H.
Nominal characteristics of standard sizes of generators MARELLI MOTORI serial MJB
4-pole design, 400 V voltage
Type of generator | Power, kVA | Type of generator | Power, kVA | ||
permanent | backup | permanent | backup | ||
MJB 160 XA4 | 14 | 15 | MJB 315 MB4 | 450 | 500 |
MJB 160 SA4 | 17 | 19 | MJB 355 SA4 | 510 | 560 |
MJB 160 SB4 | 20 | 22 | MJB 355 SB4 | 570 | 625 |
MJB 160 SC4 | 23 | 25 | MJB 355 MA4 | 680 | 750 |
MJB 160 MA4 | 28 | 31 | MJB 355 MB4 | 800 | 880 |
MJB 160 MB4 | 32 | 35 | MJB 400 MA4 | 930 | 1025 |
MJB 200 SA4 | 42 | 46 | MJB 400 MB4 | 1050 | 1155 |
MJB 200 SB4 | 50 | 55 | MJB 400 LA4 | 1150 | 1265 |
MJB 200 MA4 | 62 | 68 | MJB 400 LB4 | 1300 | 1430 |
MJB 200 MB4 | 75 | 82 | MJB 450 MB4 | 1500 | 1650 |
MJB 225 SA4 | 85 | 93,5 | MJB 450 LA4 | 1650 | 1815 |
MJB 225 SB4 | 92 | 101 | MJB 450 LB4 | 1875 | 2065 |
MJB 225 MA4 | 105 | 116 | MJB 500 SC4 | 2000 | 2200 |
MJB 225 LA4 | 132 | 145 | MJB 500 MB4 | 2200 | 2420 |
MJB 250 MA4 | 165 | 180 | MJB 500 LA4 | 2500 | 2750 |
MJB 250 MB4 | 185 | 205 | MJB 560 MA4 | 2650 | 2915 |
MJB 250 LA4 | 220 | 240 | MJB 560 LA4 | 3200 | 3520 |
MJB 250 LB4 | 250 | 275 | MJB 630 MB41 | 3300 | 3565 |
MJB 315 SA4 | 300 | 330 | MJB 630 LA41 | 3600 | 3890 |
MJB 315 SB4 | 350 | 385 | MJB 710 SC42 | 4000 | 4320 |
MJB 315 MA4 | 410 | 450 | MJB 710 MB42 | 4300 | 4645 |
6-pole design, 400 V voltage
Type of generator | Power, kVA | Type of generator | Power, kVA |
MJB 400 SA6 | 400 | MJB 500 MB6 | 1540 |
MJB 400 SB6 | 450 | MJB 500 MC6 | 1600 |
MJB 400 SC6 | 500 | MJB 500 LA6 | 1680 |
MJB 400 MA6 | 620 | MJB 560 SC6 | 1870 |
MJB 400 MB6 | 700 | MJB 560 MA6 | 2080 |
MJB 400 LA6 | 800 | MJB 560 LA6 | 2360 |
MJB 400 LB6 | 970 | MJB 630 SD6 | 2450 |
MJB 450 MB6 | 1040 | MJB 630 MA6 | 2750 |
MJB 450 LA6 | 1200 | MJB 630 MC6 | 3000 |
MJB 450 LB6 | 1360 | MJB 710 SC6 | 3500 |
MJB 500 MA6 | 1400 | MJB 710 MA6 | 3800 |
8-pole design, 400 V voltage
Type of generator | Power, kVA | Type of generator | Power, kVA |
MJB 400 SA8 | 240 | MJB 500 LA8 | 1400 |
MJB 400 SB8 | 310 | MJB 560 SC8 | 1480 |
MJB 400 SC8 | 360 | MJB 560 MB8 | 1750 |
MJB 400 MA8 | 430 | MJB 560 LA8 | 2025 |
MJB 400 MB8 | 510 | MJB 630 MC8 | 2200 |
MJB 400 LA8 | 600 | MJB 630 LA8 | 2450 |
MJB 400 LB8 | 740 | MJB 710 SA81 | 2750 |
MJB 500 SA8 | 820 | MJB 710 SC81 | 3100 |
MJB 500 SC8 | 1020 | MJB 710 MA81 | 3600 |
MJB 500 MB8 | 1270 | MJB 710 MB81 | 3700 |
10-pole design, 400 V voltage
Type of generator | Power, kVA | Type of generator | Power, kVA |
MJB 500 SA10 | 595 | MJB 630 MB10 | 1690 |
MJB 500 SC10 | 745 | MJB 630 LA10 | 1750 |
MJB 500 MB10 | 870 | MJB 710 SC10 | 2470 |
MJB 500 LA10 | 965 | MJB 710 MA10 | 2960 |
MJB 630 SC10 | 1200 | MJB 710 MB10 | 3160 |
MJB 630 MA10 | 1430 | MJB 710 LB10 | 3420 |
12 – pole version: on request.
Permissible overload exposure time from the normal level:
10% within 1 hour15% within 10 minutes
30% within 4 minutes
50% within 2 minutes
Additional options for equipping MARELLI MOTORI series MJB electric generators:
- reinforced construction to protect against linear vibration;
- flanged or special for direct coupling with the flywheel of the engine;
- the neutral terminals are located in a separate box;
- increasing the degree of protection to IP 44;
- rectifier for 12 diodes;
- insulated bearing, grounding brushes;
- AVR microcontrollers are optional in digital and analog versions, digital AVR MEC100, MEC100D with diode fault monitoring;
- permanent magnet PMG in the generator excitation system;
- lubrication control system for the sliding bearing;
- other options at the request of the customer.
Make a choice and buy MARELLI MOTORI MJB electric current generator our engineers will help you at a reasonable price, get professional advice on the contact number +7 (800) 333-47-37 or send a request to our email info@vecgroup.com.
