AC motor B4V series

AC motor
AC motor
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Protection class
rugged, IP44, IP54, IP55, IP66
squirrel-cage rotor
Number of poles
10-pole, 4-pole, 12-pole, 6-pole
Cooling mechanism
air-cooled, water-cooled
for pumps, propulsion, for marine applications
Other characteristics
high-power, low-voltage, high-voltage

7,000 kW, 7,500 kW, 9,000 kW, 10,000 kW (9,517.348 hp)


Certificate Marine Survey Certificate supplied with the machine. Shaft, housing (propulsion) and exchanger are certified by the Marine Classification Society. Housing Rigid frame, rugged welded steel fabrication (EN 10025 - S235 JR). Frame is provided with side ribs to increase the strength. Marelli Motori motors for continuous duty operation are designed to meet vibration levels per IEC 60034-14, ISO 10816-1 and BS 5000-3. Shield Made of grey cast-iron (EN 1561 – GJL 200) up to 500 frame size motors. Made of hot-rolled structural steel (EN 10025 – S235 JR) from size 560 and above. Shaft General data Made in carbon steel (EN 10083 – 2 C40 – TN) up to 450 frame and hot-rolled structural steel from 500 frame (EN 10025 – S355 JR). Shaft design Cylindrical shaft with key. Main terminal box Mounted on side (right or left to be selected). Made of formable steels EN 10130. Internal Fan Made of aluminum alloy up to 400 frame. Made of hot-rolled structural steel above (EN 10025 – S235 JR).


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Totally enclosed water to air cooled motors (TEWAC)

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