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03A1-E-0017c
225S-355K[FRAME NUMBER]
2019-9(I19c/B16)SI1FOLS Printed in JapanInformation in this catalog is subject to change without notice.
Gate City Ohsaki, East Tower, 11-2,Osaki 1-chome, Shinagawa-ku,Tokyo 141-0032, JapanPhone: +81-3-5435-7190 Fax: +81-3-5435-7475URL: www.fujielectric.com/
Notes on safety
[1] The descriptions in this catalog are intended for assisting with model selection. Before actual use, read the "Instruction Manual" carefully to ensure correct use.
[2] These products are not designed or manufactured for use in vital devices or systems.When considering products mentioned in this material for special applications such as nuclear power control, aerospace, medical care or traffic devices or systems for these purposes, inquire our sales representative. For use in any equipment where failure of the products may lead to life-threatening consequences or serious damage, be sure to provide a safety system.
Premium efficiency motors feature lower generated loss and generally have slightly higher rotational speeds than standard efficiency motors. If the load is a pump or blower and a standard efficiency motor is replaced with a premium efficiency motor, the rotational speed is increased, resulting in increased motor output. Despite the high motor efficiency, increased output may cause increased power consumption. The resistance (primary and secondary) has been lowered for reducing copper loss and the starting current is inclined to increase, which may require changing of the breaker.
Notes on adoption of premium efficiency motors
2, 4, 6P Output: 45 to 375 kW
2, 4P Output: 400 to 450 kW 8P Output: 30 to 250 kW
3 Phase Premium Efficiency Motor [IE3 class]3 Phase Standard Efficiency Motor [IE1 class]
FUJI LOW-VOLTAGEINDUCTION MOTORS
CONTENTS
BRIGHTEN FUTURE WITH TECHNICAL BREAKTHROUGH.BRIGHTEN FUTURE WITH TECHNICAL BREAKTHROUGH.F U J I L O W - V O L T A G E T H R E E - P H A S E I N D U C T I O N M O T O R
Energy-saving effect
Operating time
EnergysavingsEnergysavings
Additional cost forpremium efficiency motorrecouped due to energy costreduction during this period
Price of premium efficiency motor
+
Operation cost
Price of standard efficiency motor
+
Operation cost
Cos
tPr
ice
of p
rem
ium
effi
cien
cy m
otor
Pric
e of
sta
ndar
d ef
ficie
ncy
mot
or
Brea
k-ev
en p
oint
Long service lifeLonger service life for
insulation system*Comparison with conventional products of Fuji
High efficiencyTop-runner
standards achieved*Equivalent to efficiency class IE3 of JIS C 4034-30:2011 Energy saving
Running cost greatly decreased
Easy maintenanceGrease filling method adopted
No need for bearing replacement*Frame size 225S or larger
Improvedworkability
Terminal box mounted at the topEasy to change
cable outlet direction
●STANDARD SPECIFICATION
●MODEL LIST
●TYPE NUMBER NOMENCLATURE
●DIMENSIONAL OUTLINE DRAWINGS [PREMIUM EFFICIENCY MOTORS]
●DIMENSIONAL OUTLINE DRAWINGS [STANDARD EFFICIENCY MOTORS]
4
5
5
6
8
●CHARACTERISTIC SPECIFICATION
●TYPICAL STRUCTURAL DRAWINGS
●INVERTER DRIVING
●NOTES ON USE
●HOW TO ORDER
10
12
13
14
15
FEATURES[PREMIUM EFFICIENCY MOTOR]
Premium efficiency motors have higher efficiency than standard efficiency motors and offer a higher energy-saving effect with longer-hour applications, improving economic efficiency.
225S-355K[FRAME NUMBER]
Outdoor typeGlobal standard
protection rating: IP55
V-ring
Splashwater guard
Outdoorstructure
Options
Grounding ringDestructive shaft voltages can occur in rare instances when operating the motor with an inverter due to bearing grease, wiring, and operating conditions.As a countermeasure, the motor can be ordered with a maintenance-free grounding ring (AEGIS® SGR). Please request this option when ordering.
MODEL LIST
TYPE NUMBER NOMENCLATURE
4 5
1, 2, 3 digit ModelCodeMLUMLA
Premium efficiencyStandard efficiency
Model 4 digit Series No.
M L U 2 2N1 B1 2 3 4 5 6 7 8
5, 6, 7 digit Frame size
Code22022N25025E25225F28028E28228F284286310311
Frame size
225S
250S
250M
280S
280M
280L
315S
312313314315316317318350352354356
Code Frame size
315M
315MN*1/315L*2
315MN315MN*1/315L*2
315MN315L
355M*1/355K*2
355K
*1: Standard efficiency*2: Premium efficiency
8 digit Mounting method
CodeABCDGHJL
Indoor IMB3 (F11)Outdoor IMB3 (F11)Indoor IMV1 (L52)Outdoor IMV1 (L52)Indoor IMB5 (L51)Outdoor IMB5 (L51)Indoor IMB35 (L81)Indoor IMV5 (F12)
Frame size CodeNQRSTUZ
Indoor IMV6 (F13)Indoor IMV3 (L53)Outdoor IMV3 (L53)Outdoor IMB35 (L81)Outdoor IMV5 (F12)Outdoor IMV6 (F13)Other
Frame size
Note) Indications in parentheses show former symbols.
Note) The frame sizes marked with an asterisk (*) indicate Fuji's own designations. Note) The frame sizes marked with an asterisk (*) indicate Fuji's own designations.
225S
250S
250M
280S
280M
280L
315L
355K*
355K*
155 (F)
155 (F)
Premium efficiency
Standard efficiency
Frame size Type Thermalclass
Output [kW]2P 4P 6P
2, 4, 6P
225S
250S
250M
280S
280M
315S
315M
315MN*
315L
355M*
355K*
MLA9221MLA9250MLA9251MLA9252MLA9253MLA9280MLA9281MLA9282MLA9283MLA9310MLA9311MLA9312MLA9313MLA9314MLA9315MLA9316MLA9317MLA9318MLA9350MLA9352MLA9354MLA9356
3037374545555575759090110110132132150150160185200220250
155 (F)Standard efficiency
Frame size ThermalclassType
Output [kW]8P
8P
MLU704455
MLU704555
MLU704645
For products with stock indication, please provide the part number code when placing orders.
Stock indicationPart number code
MLU7044
*Those without a stock indication are made to order.
In stock (200-400/200-400, 220-440 V)
STANDARD SPECIFICATION
Ambient conditions
Terminal box
Lead wire
Standard
Temperature
Humidity
Altitude
Other
Mounting position (leg mounting type)
Port orientation (leg mounting type)
Color of coating
Material
System
Applicable
Efficiency
—
Top side
Leftward as seen from load
250S or larger
Top side
Leftward as seen from load
225S
Downward
Left side as seen from load
Housing structure
Type
Number of poles
Output
Frame size
Time rating
Protection rating
Note 1) The manufacturable range is up to 600 V.Note 2) Rated voltage and rated frequency (*1): output 132 kW or less: dual voltage, output over 132 kW: Single voltage specification (with 4P)Note 3) The starting method (*2) is based on 4P.Note 4) Temperature rise for insulation class (*3): frame size 225S: "B" riseNote 5) No. of lead wires (*4): Fuji's standard value For made-to-order products, specify the starting method and no. of lead wires.Note 6) If you wish to export products (motors as they are or installed in machines, equipment, etc.) to foreign countries, please contact us separately to obtain information about the high-efficiency regulations enforced and implemented in the respective countries.
Premium efficiency Standard efficiency
200/ V and 400/ V·50/60 Hz200220
400440
Totally-enclosed fan-cooled type
MLA9
S1 (continuous)
IP44
Rated voltage and rated frequency
*1
155 (F)
CCW (counterclockwise as seen from load)
-20°C to +40°C
95% RH max. (no condensation)
1,000 m max.
No corrosive or explosive gas or vapor
Steel plate
Lug system
Munsell N5 (gray)
JIS, JEC, JEM
—
Totally-enclosed fan-cooled type
MLU1
2P, 4P, 6P
45 to 375 kW
225S to 355K
S1 (continuous)
IP55
155 (F)
CCW (counterclockwise as seen from load)
-30°C to +40°C
100% RH max. (no condensation)
1,000 m max.
No corrosive or explosive gas or vapor
—
Top side
Leftward as seen from load
Steel plate
Lug system
Munsell N1.2 (black)
JIS C 4213
JIS C 4034-30:2011 (IE3-equivalent)
Thermal class
Direction of rotation
*2Starting method
*3
*4No. of wires
45 to 55 kW: 675 kW or larger: 3
30 to 55 kW: 675 kW or larger: 3
3
2P, 4P
400 to 450kW
355K
8P
30 to 250kW
225S to 355K
45 to 55 kW: starting75 kW or larger: Direct-on-line starting
30 to 55 kW: starting75 kW or larger:Direct-on-line starting
Direct-on-line starting
200/ V and 400/ V・50/60Hz200220
400440
Outdoor
MLU1220
MLU122N
MLU1250MLU125EMLU1252MLU125FMLU1280MLU128EMLU1282MLU128FMLU1284MLU1286MLU1314MLU1316MLU1350MLU1352MLU1354MLU1356MLA9354MLA9356
—
75—90—
110—
132—
160200
220,250300315355375—
400450
−
—75—90—
110—
132160200
220,250300315
355,375——
400450
−
—55—75—90—
110132160
200,220250——
300,315355,375
——
6
Fig. BShaft end detail
Fig. C Fig. DKA
RL
Q
QR
K1 K2XBFF
N
GKG
ZJE E
M
H
KLDA
S
C
KD
Fig. A
7
QR
QU
S
T
W
Note 5) *1: Please contact us for the individual dimensions. *2: NU314MCCG50Note 6) The dimensions are subject to change. Please request dimensional outline drawings for designing.
Note 1) The standard mounting method is IMB3 (F11: frame mounting). Please contact us for other mounting methods.Note 2) Dimensional tolerance: height of rotating shaft C ≤ 250 mm: mm, C > 250 mm: mm, shaft end key groove (W) dimensional tolerance: average class (N9).Note 3) The 2-pole models are for direct connection only.Note 4) Bearing nos. beginning with "63" represent a single row deep groove ball bearing, "NU" a cylindrical roller bearing, "ZZ" a grease-filled shielded ball bearing and "C3" a bearing with the radial gap of C3.
0-0.5
0-1
Premium Efficiency MotorDIMENSIONAL OUTLINE DRAWINGS Outdoor
J ZE EM
D
H
KGG
KL
C
KF F XBN
RAL
KA
Q
S
KD
QR
J ZE EM
D
H
KGG C
KLKD
KF F XBN
S
QR
Q
RAL
KA
ME E
Z
KG
H
DKL
J
CG
F F XBN
K1 K2
QR
S
Q
LA R
KAKD
Premium efficiency[Unit: mm]
A
B
C
D
Frame size Type
Output [kW] BearingN
366
449
449
570533570533800557800557900648900648648900648950890950890950890890890
R
402432
433.5463.5452.5482.5484544
509.5569.5528.5588.5528.5588.5610640610640640610640749819749819749819819819
XB
149
168
168
190
190
190
216
254
Operation side2P
6312ZZC3ー
6314C3ー
6314C3ー
6314C3ー
6314C3ー
6314C3
6314C3
6316C3
4P・6Pー
6315ZZC3ー
6318ー
6318ー
6320ー
6320
6320
6222
6222
Opposite operation sideL
831861101310521013105211421194114211941372143113721431161816481618164816481618164817361806173618061736180618061806
M
436
506
506
630560630560630560630560730630730630630730630810730810730810730730730
Shaft end
Q
110140110140110140110170110170110170110170140170140170170140170140210140210140210210210
QR
1212121212
1
12122121
2.51
2.51
2.52.52.5
S
55m665m655m675m655m675m655m685m655m685m655m695m655m695m665m695m665m695m695m665m695m665m6100m665m6100m665m6100m6100m6100m6
T
1011101210121014101410141014111411141411141116111611161616
U
676
7.56
7.56969696979799797107107101010
W
1618162016201622162216251625182518252518251828182818282828
Drawing No. A
429
579.5588.5560.5569.5658650
632.5624.5843.5842.5843.5842.5
1008
987
C
225
250
250
280
280
280
315
355
4P
ー55ー75ー90ー
110ー
132ー
160ー
200ー
220ー
250ーー
300ー
315ー
355,375ーーーー
6P
ー45ー55ー75ー90ー
110ー
132ー
160ーーー
200220ー
250ーーーーー
300,315ー
355,375
D
476
519
519
628605628605
628
689
778
E
178
203
203
228.5
228.5
228.5
254
305
F
143
155.5
174.5
184
209.5
228.5
254
355
G
25
30
30
4530453045304530453645363645365536553655363636
H
642662
683
658683861831861831
861
975
1059
I
ー
ー
ー
ー
ー
ー
ー
ー
J
80
100
100
160125160125160125160125190150190150150190150190160190160190160160160
K
95
ー
ー
ー
ー
ー
ー
ー
K1
ー
158
158
225185225185450210450210500240500240240500240360330360330360330330330
K2
ー
120
120
225120225120225120225120250140250140140250140250180250180250180180180
KA
115
143.5
162.5
155.5167181
192.5
200
239
375
KD
G2 1/2
G2 1/2
G2 1/2
G2 1/2
G2 1/2
G2 1/2
*1
*1
KL
170
170
170
230
230
230
350
460
KG
550570
591
591
735705735705
735
808
893
1220B122NB1250B125EB1252B125FB1280B128EB1282B128FB
1284B
1286B
1314B
1316B
1350B
1352B
1354B
1356B
225S
250S
250M
280S
280M
280L
315L
355K
MLU
ZApproximate
mass[kg]2P
6312ZZC3ー
6314C3ー
6314C3ー*2ー*2ー
*2
*2
*2
4P・6Pー
6312ZZC3ー
6314ー
6314ー
6317ー
NU314
NU314
NU314
NU314
400440590580
620
9207309408201250120013001300155016001550160016001600170020002000210021002200215023002300
18.5
24
24
24
24
24
28
28
2P
55ー75ー90ー
110ー
132ー
160ー
200ー
220ー
250ーー
300ー
315ー
355ー
375ーーー
8 9
L D
H
KG
C
A
FK J Z
F E EXB
R KL
N M
QKA
S
G
QR
L D
H
KG
C
A
FK J Z
F E EXB
R
KDKL
N M
QKA
S
G
QR
L D
I
C
J Z
E E
A R KL
F
K
F XB
N M
Q
S
G
KDQR
Frame size Type
Output [kW] BearingN
366
411
449
468
519
526
577
577
577
628690690
840
R
432
463.5
482.5
544
569.5
589
614.5
614.5
614.5
640744744749819749819
XB
149
168
168
190
190
216
216
216
216
216254254
254
Operation side2P 4P 6P 4P 6P2P8P
6315ZZ6318
NU3186318
NU3186320
NU3206320
NU3206322
NU3226322
NU3226322
NU3226322
NU322632263226322
6322
Opposite operation side
[Unit: mm]
L
838
909
947
1039
1090
1302
1352
1452
1452
1502159115911633169116331691
M
436
506
506
557
557
628
628
628
628
628730730
730
Shaft end
Q
140
140
140
170
170
170
170
170
170
170210210140210140210
QR
2
2
2
2
2
2
2
2
2
22.52.52
2.52
2.5
S
65m6
75m6
75m6
85m6
85m6
95m6
95m6
95m6
95m6
95m6100m6100m665m6100m665m6100m6
T
11
12
12
14
14
14
14
14
14
14161611161116
U
7
7.5
7.5
9
9
9
9
9
9
91010710710
W
18
20
20
22
22
25
25
25
25
25282818281828
Drawing No. A
406
445.5
464.5
495
520.5
713
737.5
737.5
837.5
862847847884872884872
C
225
250
250
280
280
315
315
315
315
315355355
355
8P
3037374545555575759090
110110132132150150160185200—
220—
250
2P 4P 6P D
475
535
535
605
605
623
623
623
623
623695695
695
E
178
203
203
228.5
228.5
254
254
254
254
254305305
305
F
143
155.5
174.5
184
209.5
203
228.5
228.5
228.5
254280280
355
G
25
30
30
35
35
42
42
42
42
424242
42
H
−
673
673
805
805
917
917
917
917
917998998
998
I
515
—
—
—
—
—
—
—
—
—
—
J
80
100
100
100
100
120
120
120
120
120120120
120
K
95
120
120
120
120
145
145
145
145
145145145
145
K1
—
—
—
—
—
—
—
—
—
—
—
K2
—
—
—
—
—
—
—
—
—
—
—
KA
—
143
162.5
167
192.5
201
226.5
226.5
252
310
385
KD
G2 1/2
G2 1/2
G2 1/2
G2 1/2
G2 1/2
*1
*1
*1
*1
*1
*1
KL
414
170
170
230
230
350
350
350
350
460
460
KG
—
581
581
675
675
753
753
753
753
883
883
92219250925192529253928092819282928393109311931293139314931593169317931893509352
9354
9356
225S
250S
250M
280S
280M
315S
315M
315MN
315L
355M
355K
MLA
ZApproximate
mass[kg]8P
6312ZZ
6314ZZ
6314ZZ
6317
6317
NU3226322
NU3226322
NU3226322
NU3226322
NU322NU322NU322
NU322
330
465
520
685
740
1075
1210
1255
1310
139515851755
1905
2000
19
24
24
24
24
28
28
28
28
282828
28
Note 1) For information on the models indicated by , refer to "DIMENSIONAL OUTLINE DRAWINGS [Premium Efficiency Motor]" (pages 8 - 9).Note 2) The standard mounting method is IMB3 (F11: frame mounting). Please contact us for other mounting methods.Note 3) Dimensional tolerance: height of rotating shaft C ≤ 250 mm: mm, C > 250 mm: mm, shaft end key groove (W) dimensional tolerance: average class (N9).Note 4) The 8-pole models indicated by are for non-direct connection only. The other models are for direct connection only.
0-0.5
0-1
C
B
A
Shaft end detail
QR
QU
S
T
W
225S to 315L 355M·K
S
T
W
UQ
QR
400—
450—
—400—
450
————
NU214C3 NU3226216C3 6322 — —
Note 5) The 2-pole models use a fan for one-direction rotation only.Note 6) Bearing nos. beginning with "63" represent a single row deep groove ball bearing, "NU" a cylindrical roller bearing, "ZZ" a grease-filled shielded ball bearing and "C3" a bearing with the radial gap of C3.Note 7) *1: Please contact us for the individual dimensions.Note 8) The dimensions are subject to change. Please request dimensional outline drawings for designing.
KD
Standard Efficiency Motor
Fig. B
Fig. C
Fig. A
Standard efficiency
DIMENSIONAL OUTLINE DRAWINGS Outdoor
10 11
Note 1) These characteristic values are based on the dynamometer method (actual load method). Note 2) The above current values are for the 400 V type. For the 200 V type, the above value x 2.Note 3) These characteristic values are typical ones. They are not guaranteed.
Note 1) These characteristic values are based on the dynamometer method (actual load method). Note 2) The above current values are for the 400 V type. For the 200 V type, the above value x 2.Note 3) These characteristic values are typical ones. They are not guaranteed.
Note 1) These characteristic values are based on the dynamometer method (actual load method). Note 2) The above current values are for the 400 V type. For the 200 V type, the above value x 2.Note 3) These characteristic values are typical ones. They are not guaranteed.
400 V classCHARACTERISTIC SPECIFICATION
2PPremium efficiency
4PPremium efficiency
6PPremium efficiency
Note) The above current values are for the 400 V type. For the 200 V type, the above value x 2.
Rated current [A] Rated speed [min-1]TypeNumber of poles
2P
4P
8P
MLA9354MLA9356MLA9354MLA9356MLA9221MLA9250/9251MLA9252/9253MLA9280/9281MLA9282/9283MLA9310/9311MLA9312/9313MLA9314/9315MLA9316/9317MLA9318MLA9350MLA9352MLA9354MLA9356
Output [kW]
400450400450303745557590110132150160185200220250
2980298014851485730730735735735735735735735735735735735735
400V3570357017801780875880880880880880880880880880880880880880
400V60Hz50Hz
3580358017851785880885885885885885885885885885885885885885
440V665750645730617489107143168202250282300347375413469
400V60Hz
675760655740647893112149172207256290304352380418475
400V50Hz
615690595670577083100134154185230260276319345380431
440V
2P 4P 8PStandard efficiency
45
55
75
90
110
132
160
200
220
250
300
315
355
375
MLU122N
MLU125E
MLU125F
MLU128E
MLU128F
MLU1284
MLU1286
MLU1316
400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440
506060506060506060506060506060506060506060506060506060506060506060506060506060506060
98878510910297146137129175162154208196185248234219301283265364347324406383360451433402543520485590550520674624592693651613
9851185118599011851190990118511909901190119099011901190990118511909851185119098511851185985118511859851185118598511851185985118511859851185118598511851185
70.255.559.372.161.462.996.481.083.211594.298.1135114117160135137194162166230199200262221225281244244347303303396329338457375388457383391
92.793.793.093.593.593.394.094.194.094.494.294.194.594.694.695.195.295.195.395.495.295.495.295.195.395.395.195.595.295.195.795.695.495.495.595.295.295.595.295.795.795.5
49.962.453.558.969.161.559.771.062.959.873.264.062.673.565.362.674.166.562.574.766.465.876.269.063.675.467.467.277.770.765.274.768.160.272.364.258.971.663.161.973.865.9
82.970.271.189.180.578.8119107105143127124169153149204184178247222215296273261333302292365339323447413396494442431567502492577520504
93.794.594.294.394.394.494.794.694.995.194.895.095.395.395.695.795.795.895.895.895.995.995.795.895.995.895.995.995.795.896.296.196.196.196.196.195.996.096.096.296.396.3
62.773.466.170.978.472.871.980.274.471.881.175.073.981.676.173.281.276.273.281.576.476.382.878.774.682.377.377.383.579.575.681.877.671.880.374.870.779.774.073.181.176.1
98.087.085.010910297.0146136129175162154208196185248234219301283265364347324406383360451433402543520485590550520674624592693651613
93.894.594.594.394.294.694.694.595.095.194.895.295.395.395.895.595.395.895.695.495.995.895.495.895.895.495.895.895.495.895.995.696.095.995.796.195.895.595.996.095.896.2
70.779.073.577.282.678.678.484.280.378.184.680.680.185.081.480.485.482.680.385.582.682.887.284.681.686.983.783.587.485.283.287.184.680.486.482.779.486.082.181.486.883.4
735609680
926.5765873124110201161154012151386187214701702172012801500206015301790264019802300303022402630316023602750373028703280437032803810488036304230498037304340
290220280260200255270205265250175230260180235126761051297710612073991307810711871981097092128781061237410112375102
325275335315265325310260320320255325330260330221169214218166211242185234249189240231176222227177221250192242247188238240184232
1.7872.3552.1571.8511.5881.7702.6861.9882.4863.1892.3563.0632.4742.3482.8253.8683.2733.8443.0303.2253.9173.7724.2604.4513.2823.6843.9012.7533.0573.3103.6305.0024.2903.1124.8874.4952.7694.3953.9223.6975.8055.340
MLU1314
MLU1354
MLU1356
IE3
IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3
Output[kW]Type Voltage
[V]
Load characteristic50% load 75% load 100% loadFrequency
[Hz]
Rated current
[A]
Input difference from standard
motor[kW](with 100% load)
Rated speed[min-1]
Starting current
[A]
Starting torque[%]
Maximum torque[%]Current
[A]Efficiency
[%]Power factor
[%]Current
[A]Efficiency
[%]Power factor
[%]Current
[A]Efficiency
[%]Power factor
[%]
Efficiency class
55
75
90
110
132
160
200
220
250
300
315
355
375
MLU122N
MLU125E
MLU125F
MLU128E
MLU128F
MLU1284
MLU1286
MLU1316
MLU1350
400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440
506060506060506060506060506060506060506060506060506060506060506060506060506060
1009488135128122160152141190184172226220204273267246342332307376365338429414384509495456531517476596579533631615568
148517801785148517801785148517851785149017851790149017851790148017801780148017801780148017801780148017801780148017751780148517801785148517801785148517801785
62.953.053.778.569.369.693.982.380.811210098.9130119115161149144204185180230209204262235230304275267316288278351322311379346338
94.295.094.494.694.694.394.794.794.495.094.994.895.295.395.295.895.595.595.995.795.695.895.795.695.995.995.896.296.196.195.895.895.895.896.095.895.896.095.8
67.078.871.272.982.675.073.083.377.474.783.777.077.284.378.974.981.176.473.881.676.272.179.474.071.880.074.474.081.976.775.182.477.676.282.978.274.681.576.0
80.372.769.710697.694.8125116110149141134176168158217208195273259244305289273348327309409388364426406380476455425508484457
94.995.595.395.295.295.295.395.395.395.595.595.695.895.996.096.295.996.196.396.096.296.396.296.396.496.396.496.496.396.596.396.396.496.496.496.596.496.596.5
78.185.881.580.887.481.881.588.184.783.788.784.584.888.785.683.086.884.082.487.183.881.185.782.380.786.082.682.486.984.083.187.284.683.887.685.282.987.083.7
10094.088.0135128122160152141190184172226220204273267246342332307376365338429414384509495456531517476596579533631615568
94.895.495.495.195.295.495.295.295.495.595.595.895.895.996.296.195.896.296.195.896.396.296.096.396.296.196.496.296.196.496.296.296.496.296.296.596.496.396.6
83.788.586.084.388.884.685.389.887.887.590.487.688.090.388.388.090.388.787.890.888.887.890.688.787.490.788.688.591.189.589.091.490.189.392.090.689.091.489.7
950799880121510241159152012921410190015641720226018702040217017501960281022302520314025302830338026703020370029203300401031903580466036904130504040204550
2752052602602002602702102702301702152451852301248811113694120136961211298811211980103100698710874921087596
355290355315255315315260320330270335335275340261211259268214265275221272259206255237188232248198243254203248262210259
1.8212.1762.0902.2772.3482.5412.1852.2082.3763.2193.3073.2643.2253.3553.4583.5493.9424.2053.5734.0004.5213.9444.7324.8944.2045.3145.8144.5545.8256.6504.2715.8485.9564.0355.8296.0694.7346.3216.337
MLU1314
MLU1352
IE3
IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3
Output[kW]Type Voltage
[V]
Load characteristic50% load 75% load 100% loadFrequency
[Hz]
Rated current
[A]
Input difference from standard
motor[kW](with 100% load)
Rated speed[min-1]
Starting current
[A]
Starting torque[%]
Maximum torque[%]Current
[A]Efficiency
[%]Power factor
[%]Current
[A]Efficiency
[%]Power factor
[%]Current
[A]Efficiency
[%]Power factor
[%]
Efficiency class
55
75
90
110
132
160
200
220
250
300
315
355
375
MLU1220
MLU1250
MLU1252
MLU1280
MLU1282
MLU1284
MLU1286
MLU1316
MLU1350
MLU1352
MLU1354
400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440400400440
506060506060506060506060506060506060506060506060506060506060506060506060506060
929083122122111146145132182179164223214198257256233320319290352349318400397362479474432507500457568561513593592538
296535603565297035653570297035653570297035703575297535703575297035703570297035703570297035653570297035653570297035653570297535703575297535703575297535703575
50.548.545.568.066.062.081.078.073.010497.093.0130117113141137128175169158194186175220211198263251236281267252315300282323313292
93.891.992.093.992.592.694.393.793.894.794.194.194.894.594.594.994.694.695.394.994.995.895.195.295.995.395.496.195.595.695.395.095.095.594.994.995.595.095.2
83.889.186.284.788.785.785.188.986.380.787.082.577.386.181.186.389.186.786.690.087.585.589.886.785.689.786.885.790.387.384.989.786.485.290.087.087.791.188.5
71.070.065.096.095.087.0114112103144139129177167156200198182249246225274270248312306282373365337396386356443434400461456418
94.492.293.394.893.593.995.094.494.895.394.795.095.595.195.495.695.295.595.995.495.796.195.595.896.195.695.996.395.796.095.995.495.796.095.595.796.095.495.9
89.592.389.989.391.490.390.092.290.886.890.488.384.690.087.390.691.990.690.792.391.490.492.491.190.392.591.090.593.091.289.892.691.090.392.891.291.793.392.1
92.090.083.0122122111146145132182179164223214198257256233320319290352349318400397362479474432507500457568561513593592538
94.393.093.694.893.794.295.194.595.095.494.795.295.495.195.595.695.095.495.895.495.895.995.495.895.995.495.896.095.495.996.095.495.896.095.495.895.995.495.8
91.594.992.993.694.794.193.694.894.291.493.792.589.693.691.694.095.094.594.294.994.594.195.494.894.195.394.694.295.895.093.495.394.494.095.794.895.295.895.5
8576677621070874971129010501160146011701310190014901680207017101890259021302360298024402710328026502960401032303620424034103810498040104470496040604500
156102133129931151359712012286107142941201289511713599122120871081178310412488110104729011279981067895
342271338281231282281230281259210257278222274257212258256211257283232283272221271277224275276224274288234286273224273
2.3151.3661.6131.7921.6571.9042.3462.6943.0893.2302.7633.2443.1143.4403.7163.2122.7023.4083.5463.3494.2243.8923.4354.3974.1423.6204.4324.9604.3445.6454.1532.7924.1715.0763.1474.3044.1202.4883.296
MLU1314
IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3IE3IE2IE3
Output[kW]Type Voltage
[V]
Load characteristic50% load 75% load 100% loadFrequency
[Hz]
Rated current
[A]
Input difference from standard
motor[kW](with 100% load)
Rated speed[min-1]
Starting current
[A]
Starting torque[%]
Maximum torque[%]Current
[A]Efficiency
[%]Power factor
[%]Current
[A]Efficiency
[%]Power factor
[%]Current
[A]Efficiency
[%]Power factor
[%]
Efficiency class
1312
Consider the following points for speed control by using an inverter to drive a premium efficiency motor.● Increase of the generated loss and starting characteristics● Decrease of the cooling capacity in a low-speed region● Bearing service life and mechanical strength in a high-speed region of 60 Hz or higher● Generation of surge voltage
1. Allowable torque characteristics
The output voltage of an inverter contains a harmonic component. This causes a higher generated loss of the motor than when it is driven by a sine wave as in a commercial power supply, leading to a temperature rise of the motor. Meanwhile, the motor is cooled by its own fan mounted on the shaft. However, the air volume of the fan decreases when the rotational speed is reduced, which causes a decrease in the cooling capacity of the motor. Accord-ingly, pay attention to the motor temperature when using the product at a low rotational speed.
Fig. 1 Representative 4P models (frame size 225S or larger)
2. Starting characteristics
Unlike when using a commercial power supply, inverter driving is restricted by the inverter current. Generally, the starting torque is lower than when driven by a commercial power supply. This torque can be increased to some extent by adjusting the amount of torque boost in the V/F pattern. When an even higher starting torque is required, it is necessary to increase the capacity of the inverter and motor.
5. High-speed operationWhen a motor is driven in a high-speed region of over 60 Hz, the bearing service life may be reduced for reasons such as increased vibration, which limits the maximum speed. In addition, noise, strength, service life, etc. may pose problems with power transmission mechanisms such as the coupling, belt, chain and gear. Please contact their respective manufacturers for details.
6. Surge voltageWhen a 400-V-class motor is driven by a PWM inverter that uses a high-speed switching device such as an IGBT, surge voltage may be generated depending on the power voltage, cable length and installation condition. This surge voltage may cause the motor insulation to deteriorate. The maximum value for the motor terminal voltage is 1300 V line voltage. If a surge voltage exceeding this value is generated, reduce the surge voltage by fitting an AC reactor, surge suppression filter, etc. on the inverter output side.
4. Vibration
1) When the operation frequency for inverter driving is different from the commercial power frequency, resonance with the enclosure is generated at a certain rotational speed band, and this may result in a larger vibration. If this happens, measures such as improving the foundation of the motor installation or of the coupling may be required.
2) When used at a frequency higher than the commercial power frequency, vibration increases as the speed increases.
7. Electrolytic corrosion of bearingsWhen an inverter is used to drive the motor, electrolytic corrosion may be developed on rare occasions depending on the bearing grease, wiring, load and operation conditions. If any measure to deal with electrolytic corrosion is required, please consult us in advance.
[Reference] JEM-TR 169"Supplement to the application guide for low-voltage three-phase squirrel-cage induction motors forgeneral purposes driven by inverters"
3. Noise
1) Generally, inverter driving involves higher electromagnetic noise than when using a commercial power supply because of the effect of the inverter. When used at a frequency higher than the commercial frequency, the ventilation sound increases as the rotational speed increases.
2) Please contact us for details of noise reduction measures, which include use of a low-noise inverter and provision of a noise-re-duction reactor between the inverter and the motor.
Note 1) The above torque characteristics are based on operation in combination with Fuji inverters.Note 2) The torque at 100% is the allowable torque [N・m] when each output is 60 Hz.
200
150
100
50
00 20 406Hz 60
Frequency [Hz]
Continuous operation at 100%1-minute operation at 150%
Torq
ue [%
]
INVERTER DRIVING OF PREMIUM EFFICIENCY MOTORSTYPICAL STRUCTURAL DRAWINGS Premium Efficiency MotorOutdoor
Frame size: 250M
Frame size: 315M
(16)
(19)(20)(21)
(22)
(23) (24)
(25)
(1) (2)(3) (6)(4) (9) (10) (11) (13)
(17)
(12) (7)
(8)
(18)
(1)
(2)
(6)
(4)(3) (5)
(9) (10)(11)(13)(14) (16) (17)(12)
(19)
(20)
(21)
(22)
(23) (24)
(25)
(7)
(15)
(8)
(18)
Internal fanAir guideInner end cover on operation sideBracket on operation sideGrease inletBearing on operation sideOuter end cover on operation sideRotating diskC-shaped retaining ring for shaftShaftShaft end keyGrounding screw
(14)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)
(1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)
No. No.Part name Part nameFan coverExternal fanC-shaped retaining ring for securing external fanBearing opposite operation sideInner end cover opposite operation sideBracket opposite operation sideTerminal boxHanger boltStator iron coreRotor iron coreStator frameRotor conductorStator winding
2. Rotational speed
The generated loss of the motor is reduced as compared with conventional standard efficiency motors and the rotational speed is inclined to be slightly higher (slip is inclined to be smaller). For square reduction loads such as pumps and fans, attention must be paid because the power requirement may be increased in propor-tion to the increase of the rotational speed, leading to increased power consumption.(*Square reduction load: load that varies in proportion to the square of the rotational speed)
● Motor characteristics (starting current, rotational speed, load factor)● Motor installation environment (dimensions, mount)● Peripheral devices (magnetic switch, thermal overload relay)
1. Starting currentLosses of various parts have been reduced as much as possible in order to improve the motor efficiency. For that purpose, the resistance of various parts (winding, rotor) has been reduced, which makes the starting current inclined to be higher than that of conventional standard efficiency motors.
4. Motor peripheral devices
1) The peripheral devices may require reconsideration due to an increase of the magnetic switch, starter or motor starting current. When using devices from other manufacturers for replacement, please contact the respective manufacturers.
2) Thermal overload relayAs with Item 1, the setting of the thermal overload relay shown in Fig. 3 may require reconsideration due to an increase of the starting current.
To achieve an energy-saving effect by improving the efficiency, which is the biggest feature of premium efficiency motors, it is necessary to study products from various perspectives including their selection, operation and maintenance.
3. Load factor and efficiency
As shown in Fig. 2, motor efficiency reaches its maximum at a load factor of approximately 75 to 100% The energy-saving effect can be maximized by selecting so that the motor load factor is between 75 and 100%. If the load factor is extremely low, the motor capaci-ty must be reconsidered. If there is any load variation or rotational speed variation, you are recommended to fit an inverter for optimized control according to the rotational speed and load.
1514
Thermal overload relay settingFig. 3
Reset button Trip indicating window
Test button Stopper
TEST TRIP
HRESET
NO 98 97 95
24 30
RCA 36
96 NC
A 3
TR-N2/3
5. Other1) Motor mass
To improve efficiency, premium efficiency motors are inclined to be heavier than conventional standard efficiency motors. In particular, when using a motor installed on a moving object or with a mount that is not robust, take appropriate measures separately.
2) Notes on useThe descriptions in this catalog are intended to help the user select a model. In actual use, please read the "Instruction Manual" that comes with the motor carefully to ensure correct use.
3) Star-delta startingFor star-delta starting, be sure to install a model with a magnetic switch (3-contact type) on the primary side.
4) Outdoor type structureThe leg mounting type and flange mounting type have different waterproof structures. Please order a type that is appropriate for the mounting method. For use in an environment subject to explosive gas or dust, choose an explosion-proof type.
Note) Generally, a larger motor capacity offers higher motor efficiency.
Fig. 2 Graph representing the relationship between the load factor andefficiency (representative model)
300kW160kW55kW
100
90
800 25 50 75 100
Effic
ienc
y[%
]
Load factor [%]
USE OF PREMIUM EFFICIENCY MOTORS HOW TO ORDER
1. To place an order, please provide the following information. For motors of other than the Fuji standard types, you will need to provide details of your requirements.
2. When using the product for any of the following applications, please contact us in advance.(1) Use on vital equipment*1 or equipment that may affect human safety and have a serious impact on the maintenance of public functions*2
requires special consideration.*3 Be sure to contact us in advance. Using the product without giving special consideration may lead to serious accidents.
(2) Notify us in advance when using the product for clean rooms, food processing machines, etc. Use of a standard product as it is without subjecting it to special treatment may result in a leakage of grease or oil through the joint between a bearing shield and frame or shaft penetration. Special consideration is required for use in an environment where oil should be avoided.
(3) Bearings are not subjected to treatment against electrolytic corrosion. If directly connected with the load, electrolytic corrosion may occur due to the shaft voltage. For use in applications that may involve electrolytic corrosion, measures such as use of isolation coupling are required.
*1: Operating room devices, life-support systems (artificial dialysis, incubators, etc.), toxic and other gas and smoke extraction systems, equipment made compulsory by various laws and regulations such as the Fire Service Act and Building Standards Act, various safety systems and other equivalent systems
*2: Systems for air, train, maritime and other traffic control and equipment to control such systems, systems for controlling nuclear power stations, communication control equipment and other equivalent systems
*3: Have adequate discussions with device designers on the installation, operation and management of the product and construction in advance with regards to a backup system available for use in the event of product failure
1 Voltage V Frequency: 50Hz, 60Hz, 50/60HzClass of rating: S1 (Cont. MCR), Ambient temperature at altitude up to 1000m: 40˚C, ˚C,
2 Rotor: Squirrel-cageEnclosure and Degree of protection: TEFC, IP55, TEFC, IP44,
3 Quantity, required x Item No. x
4 Application
5 Output kW
6 No. of poles/Syn. speed / min-1
7 Mounting-Type of construction: IM B 3 (Horizon.), IM V 1 (Verti.) B3 V1
8 Location-Installation Indoor Outdoor
9 Insulation class 155(F)
10 Temperature rise limit of winding with resist. method [k]
11 Starting methodFor Star-delta ( ) starting: Load torque during run-up assumed as a quadratic function of speed
12 Terminal box: (1) Flexible leads, Fixed terminals, (2) Cable entry opening: Hole, Pipe thread, (3) External cable spec: No. of cables & cores, conductor mm2,
Overall dia/inner sheath dia(4) Location of box
cable, core, mm2
/ aidmmLeft Right Top
13 Coupling methodBelting data: Belt type-qty. Pulley PD-width [mm] and mass [kg] are required.When the motor's shaft extension is directly mounted on the shaft with the blower's impeller, please provide data of the impeller (including drawings showing size, mass and moment of inertia).
Direct con. single shaft ext.
14 Vertical mounting: Normal/Momentary design ext. thrust force in N
Down. Up
15 Bearings: Grease anti-friction Yes
16 Accessories: Shaft ext. key
17 Painting: Fuji std. practice Yes
18 Characteristics (1): Fuji design Yes
19 Permissible load J [kg·m2]
20 Direction of rotation: seen from drive end of motor CCW CW
21 Direction of rotation of motor fan Bi(both) Uni(one)
22 Fuji motor type/Frame No. /
23 Applicable standard
24 Attached dwg No. for reference
Remarks
Note: ( 1) Guaranteed values are subject to tolerances per standards. There are no upper limits on tolerance for locked-rotor torque.Remarks (1) Test: Characteristics are determined with the Equivalent circuit method. (2) Materials: Japanese standards. (3) Threads and dimensions: Metric.
DOL
"B"rise(80) "F"rise(105)
03A1-E-0017c
225S-355K[FRAME NUMBER]
2019-9(I19c/B16)SI1FOLS Printed in JapanInformation in this catalog is subject to change without notice.
Gate City Ohsaki, East Tower, 11-2,Osaki 1-chome, Shinagawa-ku,Tokyo 141-0032, JapanPhone: +81-3-5435-7190 Fax: +81-3-5435-7475URL: www.fujielectric.com/
Notes on safety
[1] The descriptions in this catalog are intended for assisting with model selection. Before actual use, read the "Instruction Manual" carefully to ensure correct use.
[2] These products are not designed or manufactured for use in vital devices or systems.When considering products mentioned in this material for special applications such as nuclear power control, aerospace, medical care or traffic devices or systems for these purposes, inquire our sales representative. For use in any equipment where failure of the products may lead to life-threatening consequences or serious damage, be sure to provide a safety system.
Premium efficiency motors feature lower generated loss and generally have slightly higher rotational speeds than standard efficiency motors. If the load is a pump or blower and a standard efficiency motor is replaced with a premium efficiency motor, the rotational speed is increased, resulting in increased motor output. Despite the high motor efficiency, increased output may cause increased power consumption. The resistance (primary and secondary) has been lowered for reducing copper loss and the starting current is inclined to increase, which may require changing of the breaker.
Notes on adoption of premium efficiency motors
2, 4, 6P Output: 45 to 375 kW
2, 4P Output: 400 to 450 kW 8P Output: 30 to 250 kW
3 Phase Premium Efficiency Motor [IE3 class]3 Phase Standard Efficiency Motor [IE1 class]
FUJI LOW-VOLTAGEINDUCTION MOTORS
Recommended