Water Jacket
Three Phase
Squirrel Cage
Induction Motors
B4J - B5J SERIES
355 - 500 FRAME SIZES
TECHNICAL CATALOGUE
®
MarelliMotori
ASI.CT.036.0 GB
WATER COOLED ASYNCHRONOUS AVAILABLE OUTPUTS - Duty S1 Frame
MOTORS 355, 400, 450 AND 500 FRAME SIZES 355
400
This series of water cooled motors was designed by MarelliMotori for heavy
duty applications where space and natural ventilation is limited. The integral 60Hz 450
water jacket coolers provide an excellent power output for the compact motor 6
size as compared to traditional heat exchanger designs. These motors, originally 500
50Hz
designed for tight shipboard applications as main propulsion drives and auxiliary
poles
bow thrusters, now find themselves in heavy industry for compressors, pumps,
rollers and other rotating equipment.
60Hz
MarelliMotori has a tradition dating back to 1891 when Ercole Marelli founded 4
50Hz
the company. Today it forms an integral part of the worldwide FKI group of
companies. With over 100 years of manufacturing excellence and experience,
MarelliMotori is recognised as a leading supplier to Industrial, Petrochemical
and Marine Industries offering a complete range of Low and Medium Voltage 0 500 1000 1500 2000
Motors and Generators. These quality products are backed up by an organi-
sation of skilled people providing sales, service and technical support to the [kW]
high standards demanded by customers.
APPLICATIONS
Marine (bow thrusters & main propulsion)
Heavy Industry
Process Industry
Rubber and Plastic Industry
Ventilation
Pumps, Compressors and Agitators
Paper and Ceramic Rolling Mills
Power Generation
ASI.CT.036.0 GB
GENERAL FEATURES
Robust construction designed for heavy, arduous and continuous duty in confined spaces.
Standards
• IEC 60034
• IEC 60072
Approvals
• The motors are designed and built in accordance with naval specifications and approved by: ABS, BV, DNV and RINa
Mountings
• Vertical or horizontal
• Feet and/or flange mountings
Construction
• Steel frame
• Cast iron or steel terminal boxes and shields
• IP55
• Windings impregnated with VPI system (Vacuum Pressure Impregnation)
• Insulation class F
• Vibration grade R
• Anti-corrosion and rust frame treatment
• Stainless steel nameplate
• Simple earthing
• Drainage hole
• PTCs in windings with terminals in auxiliary terminal box
Supply
• Low or Medium Voltage
• Inverter
Cooling
• Fresh water coming from external circuit and circulating in the interspace lapping the stator core
Sound Pressure
• Extremely quiet
Bearings
• Ball bearings
• Regreasing system
• Arrangement for SPM sensor
Safety
• Internal water leakage sensor
Advantages of Water Jacket Design
• Heat removal from the installation area
• Compact dimensions
• Reduced vibrations
• No dust circulation
Recommended Uses:
• When limited space is available
• When driven machine is already water cooled
• When reduced vibration and low noise are required
• When switchboard is already water cooled
ASI.CT.036.0 GB
TECHNICAL FEATURES
Duty Type
The tables shown in this catalogue refer to S1 duty type. The table below shows the correction factors to calculate the outputs for S2 duty.
S2 - 30’ S2 - 60’
4 Poles 6 Poles Frame size 4 Poles 6 Poles
1,30 1,30 355 1,10 1,10
1,30 1,25 400 1,10 1,05
1,25 1,20 450 1,05 1,05
1,15 1,15 500 1,05 1,05
Degree of Protection
Motors are normally provided with IP55 enclosure. A higher degree of protection is available on request.
Environmental Conditions
Electrical tables refer to a cooling water of +38°C and altitude of 1000m a.s.l. Please contact MarelliMotori for different environmental conditions and where
cooling water temperature is less than 10°C.
Insulation
All motors have class F insulation which allows a maximum winding temperature rise of 107°C with cooling fluid temperature of 38°C. On request class H
insulation compatible with winding temperature up to 127°C is also available. Please contact MarelliMotori for cooling fluid temperatures lower than +10°C.
Temperature Rise
The outputs shown in this catalogue refer to temperature rise F.
PROTECTIVE TREATMENTS
External Surfaces
Standard finish is a heavy duty epoxy-vinyl paint. Colour is RAL5010.
Special paint finishes can be provided to protect against: acids, alkalis, salt air, anhydrous gases and sea water.
Internal Surfaces
Special tropicalised treatment of internal surfaces and electrical windings and inner cooling channels are coated with rust protector.
COOLING
IC 7 A1 W7 (Self-circulating primary coolant with integral heat exchanger using remote fresh water). Reduces the noise level and it is ideal for constant torque,
low speed, inverter applications.
MATERIALS
Durability and reliability determine the choice of materials. Fabricated steel frames and cast iron shields are designed for reduced weight.
Terminal boxes for frame sizes up to 400LB are in cast iron and from 400LC to 500 frame size in fabricated steel.
Please contact MarelliMotori for different materials.
Special steel shafts are available for high load applications.
BALANCING AND VIBRATION GRADE
The motors are dynamically balanced with a half key applied to the shaft extension in accordance with standard IEC 60034-14 to vibration grade reduced (R).
On request vibration grade special (S) is also available.
ASI.CT.036.0 GB
SOUND LEVELS
The electric tables show the sound pressure levels (Lp(A)) measured at no load conditions at one metre distance from the machine according to standard ISO R
1680 with tolerances of 3dB(A). The values do not depend on the supply frequency.
BEARINGS
D-end N-end Relubrication intervals1 [hours]
Frame
size Poles Type
B3 V1 B3 V1 1800rpm 1500rpm 1200rpm 1000rpm
355 ≥4 LA-LF 6322-C3 6322-C3 6322-C3 6322-C3 6300 7300 8400 9000
400 ≥4 LA-LB 6322-C3 6322-C3 6322-C3 6322-C3 6300 7300 8400 9000
≥4 LC-LD 6322-C3 6322-C3 6322-C3 7322 6300 7300 8400 9000
450 ≥4 LA-LC 6326-C3 6326-C3 6326-C3 7326 5500 6500 7500 9000
500 ≥4 LA-LC 6328-C3 6328-C3 6328-C3 7328 5000 6000 7500 9000
1: Suitable for B3 mounting
On request high load configurations are also available: roller bearings or sleeve bearings.
TERMINAL BOX
Terminal box 355-400LB Terminal box 400LC-500
Frame size Terminal block Terminals Maximum conductor Cable entrance
cross section
355-400LB Flat copper bars Hole for M12 bolt 2 x 300mm2 Undrilled gland plate
400LC-500 Flat copper bars Hole for M12 bolt 4 x 300mm2 Undrilled gland plate
DERATING FOR INVERTER SUPPLY
The B4J and B5J series have been designed to satisfy the requirements of speed control by frequency converter supply. MarelliMotori therefore provides various
solutions to obtain the best performances.
To select the best solution please contact MarelliMotori supplying the following information:
1. Load characteristics (quadratic torque, constant torque or torque curve for all other cases) of the driven equipment;
2. Electric supply and speed range;
3. Converter supply characteristics (peak voltage values at the motor terminals, rise time, etc.);
4. Maximum inverter overload (time and current value).
Inverter fed motors will be supplied with enhanced winding insulation and N-end insulated bearing.
APPROVALS
In addition to meeting the electrical motor specifications, the B4J and B5J series also match the requirements of naval register rules for pressure vessels.
In particular our motors are approved by: ABS, BV, DNV and RINa.
SAFETY
The whole series is supplied with PTC in windings and internal water leakage sensor as standard.
ASI.CT.036.0 GB
TECHNICAL DATA / LOW VOLTAGE 690V
Performances at rated outputs D.O.L. Starting Sound
Rated output Motor type Rated speed 50Hz Power Current Torque Breakdown pressure Moment Weight
Torque Current Efficiency factor torque level of inertia approx.
50Hz 60Hz 50Hz 60Hz Tn In η COS ϕ Is/In Ts/Tn Tmax/Tn LpA J
2
kW kW min-1 min-1 Nm A % - p.u. p.u. p.u. dB(A) kgm kg
4 poles
330 400 B4J 355 LA4 1484 1784 2123 327 96,0 0,88 5,5 0,9 2,4 69 6,2 1600
400 480 355 LB4 1486 1786 2570 395 96,3 0,88 6,2 1,0 2,6 69 7,4 1770
450 540 355 LC4 1486 1786 2892 444 96,4 0,88 6,0 1,0 2,5 69 8,4 1950
500 600 355 LD4 1486 1786 3213 487 96,6 0,89 6,0 1,0 2,4 69 9,5 2100
550 660 355 LF4 1487 1787 3532 535 96,7 0,89 6,2 1,0 2,4 69 10,6 2200
600 720 B4J 400 LA4 1486 1786 3856 604 96,7 0,86 5,3 0,8 2,1 71 14 2700
700 830 400 LB4 1486 1786 4498 695 96,8 0,87 5,4 0,9 2,2 71 17 2950
770 920 400 LC4 1486 1786 4948 773 96,9 0,86 5,5 0,9 2,1 71 19 3150
980 1150 B5J 450 LA4 1491 1791 6277 957 97,4 0,88 5,7 0,7 2,4 72 30 4040
1050 1250 450 LB4 1492 1792 6720 1014 97,4 0,89 6,0 0,8 2,5 72 33 4325
1180 1400 450 LC4 1492 1792 7552 1137 97,6 0,89 6,1 0,8 2,5 72 37 4680
1400 1600 B5J 500 LA4 1493 1793 8954 1363 97,7 0,88 5,3 0,6 2,1 78 49 5730
1560 1800 500 LB4 1493 1793 9978 1517 97,8 0,88 5,3 0,6 2,1 78 55 6180
1750 2000 500 LC4 1494 1794 11186 1681 97,9 0,89 5,8 0,6 2,3 78 62 6700
6 poles
230 280 B4J 355 LA6 990 1190 2219 243 95,4 0,83 5,1 0,9 2,2 66 11 1600
300 350 355 LB6 991 1191 2891 316 95,7 0,83 5,7 1,0 2,4 66 14 1820
380 450 355 LC6 992 1192 3658 394 96,1 0,84 5,8 1,0 2,4 66 18 2150
450 530 B4J 400 LA6 994 1194 4323 477 96,3 0,82 5,8 0,9 2,4 68 21 2670
530 630 400 LC6 994 1194 5092 546 96,7 0,84 5,8 0,9 2,4 68 27 3150
610 735 400 LD6 994 1194 5860 628 96,8 0,84 5,6 0,8 2,2 68 29 3250
760 900 B5J 450 LA6 994 1194 7301 771 97,0 0,85 5,5 0,8 2,3 70 41 4000
850 1000 450 LB6 994 1194 8166 862 97,1 0,85 5,3 0,8 2,2 70 46 4300
930 1100 450 LC6 994 1194 8934 942 97,2 0,85 5,2 0,8 2,2 70 52 4650
1130 1300 B5J 500 LA6 995 1195 10388 1143 97,3 0,85 5,7 0,7 2,3 73 71 5620
1300 1500 500 LB6 995 1195 11987 1297 97,5 0,86 5,3 0,7 2,1 73 82 6230
1570 1800 500 LC6 995 1195 14384 1567 97,5 0,86 5,6 0,7 2,2 73 97 6850
Is : Starting Current; Ts: Starting Torque.
STANDARD CONFIGURATION AND OPTIONS
Degree of Protection 355 400 450 500
IP 55 S S S S
IP 56 O O O O
Insulation
Class F S S S S
Class H O O O O
Protective Treatments
Epoxy-vinyl paint S S S S
Epoxy-vinyl + polyacrylic O O O O
Tropicalisation S S S S
Vibration Grade
R S S S S
S O O O O
Bearings
Ball bearings S S S S
D-end roller bearing O O O O
Sleeve bearings O O O O
Regreasing device S S S S
Arrangement for SPM S S S S
PT100 0 0 0 0
Drainage Hole S S S S
Space Heaters O (300W) (A) O (400W) (A) O (600W) (A) O (600W) (A)
Windings Protections
PTC (one series of 3 PTC in windings) S (A) S (A) S (A) S (A)
PTC (two series of 3 PTC in windings) O (A) O (A) O (A) O (A)
PT100 (one series of 3 PT100 in windings) O (A) O (A) O (A) O (A)
PT100 (two series of 3 PT100 in windings) O (A) O (A) O (A) O (A)
Water leakage sensor S (A) S (A) S (A) S (A)
Inverter Supply
Insulated bearing O O O O
Enhanced insulation for use with filter O O O O
Enhanced insulation for use without filter O O O O
Encoder O O O O
Second Shaft Extension O O O O
Double Speed O O O O
S: Standard configuration O: Option A: Terminals in auxiliary terminal box
ASI.CT.036.0 GB
DIMENSIONS
B3
V1
B4J - B5J Shaft Flange
Extension
FRAME SIZE POLES A AB AC AD B C H HB HD K L LC D E LA M N P S T
B4J 355 LA - LB 4-6 610 740 740 267 630 254 355 610 965 28 1405 1405
100 210 25 740 680 800 24 6
LC - LF 4-6 610 740 740 267 630 254 355 610 965 28 1585 1585
B4J 400 LA - LB 4-6 686 830 810 267 710 280 400 657 1057 35 1785 1785
100 210 28 940 880 1000 28 6
LC - LD 4-6 686 830 810 610 710 280 400 800 1200 35 1785 1785
B5J 450 LA - LC 4-6 750 900 950 610 1120 280 450 865 1315 35 2000 2000 110 210 30 1080 1000 1150 28 6
B5J 500 LA - LC 4-6 900 1050 1050 610 1250 280 500 930 1430 42 2230 2230 130 250 30 1080 1000 1150 28 6
ASI.CT.036.0 GB
®
MarelliMotori S.p.A.
PART OF THE FKI GROUP OF COMPANIES
Marelli Motori S.p.a. Branches
Via Sabbionara, 1 Milan
36071 Arzignano (VI) Italy (T) +39.02.66013166
(T) +39.0444.479711 (F) +39.02.66013483
(F) +39.0444.479738 Florence
www.fki-et.com/mm (T) +39.055.431838
sales@marelli.fki-et.com (F) +39.055.433351
MarelliMotori overseas offices:
G R E AT B R I TA I N GERMANY FRANCE USA
AMCO MARELLI Ltd FKI Marelli - Central Europe Marelli Motori FKI Marelli-USA
Meadow Lane Heilswannenweg 50 L’Atrium 4 1524 Lebanon Road
Loughborough 31008 Elze - Germany Rue du Colonel Chambonnet Danville, KY 40422 - USA
Leicester (T) +49.5068.462-400 69500 Bron - France (T) +1.859.236.6600
LE 11 1NB (F) +49.5068.462-409 (T) +33.4.78602502 (F) +1.859.236.8877
(T) +44 1509.615518 e-mail: sales@marelli-ce.fki-et.com (F) +33.4.78602737 e-mail: marellisales@fkilogistex.com
(F) +44 1509.615514 e-mail: sales@marelli.fki-et.com
e-mail: sales@amco.fki-et.com
ASIA PACIFIC SOUTH AFRICA
FKI Energy Technology AP Sdn Bhd FKI Rotating Machines (Pty) Ltd
Grafiche Marcolin Schio 2085
Lot 7, Jalan Majistret U1/26 Unit 4
Hicom - Glenmarie Industrial Park 55 Activia Rd-Activia Park
40150 Shah Alam Elandsfontein, 1406
Selangor D.E., Malaysia Gauteng
(T) +60.3.7805.3736 Republic of South Africa
(F) +60.3.7803.9625 (T) +27.11.8225566
e-mail: enquiry@asiafki-et.com (F) +27.11.8288089
e-mail: fki@iafrica.com
ASI.CT.036.0 GB MARELLI MOTORI reserves the right to change the design, technical specification and dimensions in order to update or improve its products, without prior notice.
