AC motor B4J - B5J series
asynchronous690 Vrugged

AC motor
AC motor
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Characteristics

AC/DC
AC
Type
asynchronous
Voltage
690 V
Protection class
rugged, IP55, IP56
Configuration
squirrel-cage rotor, vertical
Number of poles
10-pole, 4-pole, 8-pole, 6-pole
Cooling mechanism
water-cooled
Applications
for pumps, propulsion, for marine applications
Other characteristics
high-power, low-voltage
Power

2,900 kW, 3,800 kW, 4,000 kW
(3,942.901 hp, 5,166.56 hp, 5,438.485 hp)

Description

Certificate Marine Survey Certificate supplied with the machine. Shaft, housing (propulsion) and exchanger are certified by the Marine Classification Society. Motors are ABS, RRR and DNV type approved. 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 hotrolled structural steel from 500 frame (EN 10025 – S355 JR). Shaft design Cylindrical shaft with key Main terminal box Mounted on top or side (with vertical mounting) and made in cast iron or cold rolled formable steels depending from size. Internal Fan Made of aluminium alloy for 450 and 500 frame size. Made of hot-rolled structural steel from frame size 560 and above (EN 10025 – S235 JR). Heat Echanger General data Heat exchanger is part of the housing and built on the machine. The material of the frame is carbon steel according to the standard EN 10025-S275JR. Equipped with water leakage detector as standard. Exchanger data Working pressure < 6 bar Test pressure 9 bar Max glycol : 20% Coolant : fresh water only

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Totally enclosed water motors (TEWC)

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