Marine Alternators
up to 2500kVA 50Hz/3000kVA 60Hz
Marine Alternators
Proven Capability
Construction
High levels of performance, with the standard alternators
filled with performance enhancing features. Supported
through an experienced, professional team able to evaluate
all tenders and ensure exceptional support both pre and
post order. Unique special machines to suit case specific
applications are available, for example stainless steel framed,
low magnetism machines for naval minesweeper vessels or
vertical mounted shaft drive machines. All standard products
are extremely versatile and can be adapted to suit even the
most demanding applications.
Ţ Rigid steel frames (FeP12)
Standards and Certification
Ţ Sealed for life bearings up to the ECO38 frame
The Mecc Alte marine range of alternators are supplied into
both essential and non-essential duties, from the very small
to the very large vessels. The DNV batch and line approval
highlights the company’s competence in this market sector.
Additional testing and certification can be provided through
all major classification societies such as ABS, BV, CCS, DNV,
GL, KR, LR, NK, RINA etc.
Exceptional Excitation
The ‘MAUX’ (Mecc Alte AUXiliary Winding) is used throughout
the range of alternators, and has been a proven standard for
Mecc Alte in all market sectors. It is a brushless excitation
system deriving power from a dedicated auxiliary winding
within the main stator. This winding is protected by 4 layers
of polyester in addition to the clear varnish and EG43
severe environment protection used in marine applications.
Fitted within the main stator, it minimises overall dimensions
of the alternator and ensures a compact machine.
This system ensures high levels of performance with compact
dimensions, and surpasses the mandatory requirements
giving >300% forced current (short circuit maintenance) for
20 seconds – 10 seconds more than the standards require!
Ţ Rotors are dynamically balanced with ½ key (ISO 8821),
conforms to class G.2.5 (ISO 1940)
Ţ Squirrel damper windings in the rotor for parallel operation
Ţ Only two AVR’s (automatic voltage regulators) are used
throughout the range ensuring ease of replacement and
maximum performance.
Bearings
Ţ Regeareasable bearings for ECO40, ECO43 and ECO46
Protection
IP23 with additional protection screen. In addition we also
Insulation and Impregnation
Insulation materials used provide a system insulated to Class
H level. Superior processes are employed to add an EG43
compound after insulation over the main and exciter windings
to give marine standards of protection. Higher levels such as
the black butagiene (rubberised) coating are also available.
Mecc Alte Marine In Depth
Reliability
Accessories
Standardised components are used with ‘families’ of
machines to give very high degrees of interchangeability
and reduces levels of spares stock holding on vessels. Lower
component count throughout the range, and also within
A large number of accessories are available on request including:
reliability of the products. In testimony to this, the reliability
prediction according to the military standard MIL-HDBK-217F,
was a failure rate of 75,82 fpmh (failures per million hours),
13,189 hours mtbf (mean time between failures).
Ţ Space heaters
Ţ Temperature detectors (thermistors or PT100), for windings
and bearings
Ţ Higher degrees of mechanical protection (IP45 or IP54)
Ţ Parallel operation CT’s
Ţ Gland plates (specific to each contract)
Minimum Maintenance
Ţ Black butagiene winding protection
The design of the Mecc Alte marine alternators are built
with low maintenance in mind. Bearings have up to 40,000
hours life expectancy, and windings, including the auxiliary
winding, have high degrees of protection. Where maintenance
is necessary, access is very simple (i.e. no PMG (permanent
magnet generator) to remove before replacing and exciter
stator. In addition, the commonality of parts improves
component availability.
Quality Assurance
Compact Dimensions
Comparing against the competition, the Mecc Alte marine
alternators are among the most compact and light alternator
packages available. This incredible fact considers machines
ability of Mecc Alte in the design and production of their
alternators.
Products are built in accordance with ISO 9001, accredited
by Det Norske Veritas; batch and line production and
product approvals also by Det Norske Veritas; approvals by
Canadian Standards Authority (CSA) and also Underwriters
Laboratory (UL).
Designs are executed according to the most common
specifications such as CEI 2-3, IEC 34-1, EN 60034-1, VDE
0530, BS 4999-5000, CAN/CSA-C22.2 No.14-95 – No.100-95.
Regulators
‘MAUX’ control system. Power from the auxiliary winding
through to the rectifier and brushless excitation system,
Mecc Alte use the highly reliable SR7 and UVR6 AVR’s
(Automatic Voltage Regulators). Simple in that either
may work on any machine in the Mecc Alte range, and
even extending the ‘Universal’ UVR6 to work on any other
voltage control up to +/-0.5% is available (UVR6 HP) and
that both are available for parallel operation.
Mecc Alte Marine In Depth
Regulators Continued
The UVR6 has more safety circuit than the SR7 and has LED
indications visible through a window in the terminal box to
show GREEN - all okay, RED - engine underspeed & ORANGE
- alternator overload. All result in voltage reduction to protect
the alternators. The UFP module may be ordered with the
UVR6 to enhance load acceptance with the engine by reducing
voltage for milliseconds allowing the turbocharger to return to
optimum speed in a shorter time!
Digital regulators in the form of the DSR (Digital Simplified
Regulator) are being introduced which have the added
benefits of finer adjustments, remote monitoring, true rms
sensing and real-time data logging. Software is supplied by
Mecc Alte.
Should more complex operations (i.e. power factor correction,
temperature monitoring etc) be required from the regulator,
then Mecc Alte have the DIRCI (Digital Regulator with
Customer Interface).This is a fully customisable regulator with
all the benefits of the DSR, but flexibility built in to provide
much, much more!
With Great Knowledge Comes Great Power
50Hz 4 Poles 1500RPM 400V
Model
Ambient Temperature in Celsius Degrees [ºC] according to the survey society
40°
45°
[G] IP 45
50°
Temperature increase in Celsius Degrees [ºC] according to the survey society
Survey Society
See Note
125°
105°
80°
120°
110°
100°
95°
75°
70°
115°
95°
90°
70°
ABS
BV
DNV
GL
KR
RINA
ABS
BV
DNV
GL
KR
RINA
ABS
BV
DNV
GL
KR
RINA
ABS
BV
DNV
GL
KR
RINA
LR
ABS
BV
DNV
GL
KR
RINA
LR
ABS
BV
DNV
GL
KR
RINA
LR
ABS
KR
ABS
KR
ABS
KR
ECP3-1S/4 [a]
6,5
6
5,2
6,2
5,9
5,7
5,5
4,9
4,7
5,9
5,4
5,3
4,6
0.846
ECP3-2S/4 [a]
8
7,5
6,4
7,7
7,3
7
6,8
6,1
5,8
7,2
6,6
6,5
5,7
0.812
ECP3-1L/4 [a]
11
10
8,8
10,6
10
9,7
9,4
8,4
8
9,9
9,1
8,9
7,8
0.818
ECP3-2L/4 [a]
13,5
12,5
10,8
13
12,3
11,9
11,5
10,3
9,9
12,2
11,2
10,9
9,6
0.815
ECP3-3L/4 [a]
15
14
12
14,4
13,7
13,2
12,8
11,4
11
13,5
12,5
12,2
10,7
0.8
ECP28-S/4 [b]
17
16
13,6
16,3
15,5
15
14,5
12,9
12,4
15,3
14,1
13,8
12,1
0.853
ECP28-M/4 [b]
20
18,5
16
19,2
18,2
17,6
17
15,2
14,6
18
16,6
16,2
14,2
0.85
ECP28-2L/4 [b]
25
23
20
24
22,8
22
21,3
19
18,3
22,5
20,8
20,3
17,8
0.84
ECP28-VL/4 [b]
30
26
24
28,8
27,3
26,4
25,5
22,8
21,9
27
24,9
24,3
21,3
0.8
ECP32-2S/4 [b]
35
33
28
34
32
31
30
27
26
32
29
28
25
0.829
ECP32-3S/4 [b]
42,5
39
34
40
38
37
36
32
31
38
35
34
30
0.8
ECP32-1L/4 [b]
50
48
40
48
46
44
43
38
37
45
42
41
36
0.8
ECP32-2L/4 [b]
63
60
50
61
58
56
54
48
46
57
53
51
45
0.833
ECP32-3L/4 [b]
75
67
60
72
69
66
64
57
55
68
62
61
54
0.8
ECP34-1S/4 [b]
85
77
68
82
77
75
72
65
62
77
71
69
60
0.765
ECP34-2S/4 [b]
105
95
84
101
96
92
89
80
77
95
87
85
75
0.81
ECP34-1L/4 [b]
135
121
108
130
123
118
115
103
99
122
112
109
96
0.8
ECP34-2L/4 [b]
150
136
120
144
137
132
128
114
110
135
125
122
107
0.8
ECP34-3L/4 [b]
160
145
128
154
145
140
137
122
117
144
133
129
113
0.8
ECO38-1SN/4 [b]
180
170
144
173
164
158
153
137
131
162
149
146
128
0.805
ECO38-2SN/4 [b]
200
185
160
192
182
176
170
152
146
180
166
162
142
0.8
ECO38-3SN/4 [b]
225
207
180
216
205
198
191
171
164
203
187
182
160
0.8
ECO38-1LN/4 [b]
250
230
200
240
228
220
213
190
183
225
208
203
178
0.8
ECO38-2LN/4 [b]
300
275
240
288
273
264
255
228
219
270
249
243
213
0.8
ECO38-3LN/4 [b]
350
320
280
336
319
308
298
266
256
315
291
284
249
0.8
ECO40-1S/4 [c]
400
370
320
384
364
352
340
304
292
360
332
324
284
0.825
ECO40-2S/4 [c]
450
410
360
432
410
396
383
342
329
405
374
365
320
0.822
ECO40-3S/4 [c]
500
450
400
480
455
440
425
380
365
450
415
405
355
0.82
ECO40-1L/4 [c]
550
500
440
528
501
484
468
418
402
495
457
446
391
0.818
ECO40-1.5L/4 [c]
620
560
496
595
564
546
527
471
453
558
515
502
440
0.774
ECO40-2L/4 [c]
680
630
544
653
619
598
578
517
496
612
564
551
483
0.735
ECO40-VL/4 [c]
750
690
600
720
683
660
638
570
547
675
622
608
533
0.735
ECO43-1SN/4 [c]
800
730
640
768
728
704
680
608
584
720
664
648
568
0.775
ECO43-2SN/4 [c]
930
850
744
893
846
818
791
707
679
837
772
753
660
0.785
ECO43-1LN/4 [c]
1100
1000
880
1056
1001
968
935
836
803
990
913
891
781
0.772
ECO43-2LN/4 [c]
1300
1200
1040
1248
1183
1144
1105
988
949
1170
1079
1053
923
0.77
ECO43-VL/4 [c]
1400
1280
1120
1344
1274
1232
1190
1064
1022
1260
1162
1134
994
0.77
ECO46-1S/4 [c]
1500
1350
1200
1440
1365
1320
1275
1140
1095
1350
1245
1215
1065
0.733
ECO46-1.5S/4 [c]
1650
1480
1320
1584
1502
1452
1403
1254
1205
1485
1370
1337
1172
0.733
ECO46-2S/4 [c]
1800
1600
1440
1728
1638
1584
1530
1368
1314
1620
1494
1458
1278
0.722
ECO46-1L/4 [c]
2100
1900
1680
2016
1911
1848
1785
1596
1533
1890
1743
1701
1491
0.729
ECO46-1.5L/4 [c]
2300
2050
1840
2208
2093
2024
1955
1748
1679
2070
1909
1863
1633
0.729
ECO46-2L/4 [c]
2500
2250
2000
2400
2275
2200
2125
1900
1825
2250
2075
2025
1775
0.7
60Hz 4 Poles 1800RPM 450V
Model
Ambient Temperature in Celsius Degrees [ºC] according to the survey society
40°
45°
[G] IP 45
50°
Temperature increase in Celsius Degrees [ºC] according to the survey society
125°
105°
80°
120°
110°
100°
95°
75°
70°
115°
95°
90°
70°
ABS
BV
DNV
GL
KR
RINA
ABS
BV
DNV
GL
KR
RINA
ABS
BV
DNV
GL
KR
RINA
ABS
BV
DNV
GL
KR
RINA
LR
ABS
BV
DNV
GL
KR
RINA
LR
ABS
BV
DNV
GL
KR
RINA
LR
ABS
KR
ABS
KR
ABS
KR
ECP3-1S/4 [d]
7,8
7,2
6,2
7,5
7,1
6,9
6,6
5,9
5,7
7
6,5
6,3
5,5
0.846
ECP3-2S/4 [d]
9,6
9
7,7
9,2
8,7
8,4
8,2
7,3
7
8,6
8
7,8
6,8
0.812
ECP3-1L/4 [d]
13,2
12
10,6
12,7
12
11,6
11,2
10
9,6
11,9
11
10,7
9,4
0.818
ECP3-2L/4 [d]
16,2
15
13
15,6
14,7
14,3
13,8
12,3
11,8
14,6
13,4
13,1
11,5
0.815
ECP3-3L/4 [d]
18
16,5
14,4
17,3
16,4
15,8
15,3
13,7
13,1
16,2
14,9
14,6
12,8
0.8
ECP28-S/4 [e]
19,5
18
15,6
18,7
17,7
17
16,6
14,8
14,2
17,6
16,2
15,8
13,8
0.853
ECP28-M/4 [e]
23,5
21
19,2
23
21,8
21,1
20,4
18,2
17,5
21,6
19,9
19,4
17
0.85
ECP28-2L/4 [e]
29
26,5
23
27,8
26,4
25,5
24,7
22
21,2
26
24,1
23,5
20,6
0.84
ECP28-VL/4 [e]
36
32
28,8
34,6
32,8
31,7
30,6
27,4
26,3
32,4
29,9
29,2
25,6
0.8
ECP32-2S/4 [e]
42
40
34
40
38
37
36
32
31
38
35
34
30
0.829
ECP32-3S/4 [e]
51
49
40
49
47
45
44
38
37
46
43
41
36
0.8
ECP32-1L/4 [e]
60
58
48
58
55
53
51
46
44
54
50
49
43
0.8
ECP32-2L/4 [e]
73
70
58
70
67
65
63
55
53
66
60
59
52
0.833
ECP32-3L/4 [e]
88
81,5
71
85
80
77
75
67
64
79
73
71
62
0.8
ECP34-1S/4 [e]
102
92
82
98
93
90
87
78
74
92
85
83
72
0.765
ECP34-2S/4 [e]
126
114
101
121
115
111
107
96
92
113
105
102
89
0.81
ECP34-1L/4 [e]
156
141
125
150
142
137
132
119
114
141
129
126
111
0.8
ECP34-2L/4 [e]
175
157
140
168
159
154
149
133
128
158
145
142
124
0.8
Survey Society
See Note
ECP34-3L/4 [e]
189
167
151
181
172
166
161
144
138
171
157
153
134
0.8
ECO38-1SN/4 [e]
220
205
176
211
200
194
187
167
161
198
183
178
156
0.805
ECO38-2SN/4 [e]
240
220
192
230
218
211
204
182
175
216
199
194
170
0.8
ECO38-3SN/4 [e]
270
250
216
259
246
238
230
205
197
243
224
219
192
0.8
ECO38-1LN/4 [e]
300
280
240
288
273
264
255
228
219
270
249
243
213
0.8
ECO38-2LN/4 [e]
350
320
280
336
319
308
298
266
256
315
291
284
249
0.8
ECO38-3LN/4 [e]
420
385
336
403
382
370
357
319
307
378
349
340
298
0.8
ECO40-1S/4 [f]
465
425
372
446
423
409
395
353
339
419
386
377
330
0.825
ECO40-2S/4 [f]
525
475
420
504
478
462
446
399
383
473
436
425
373
0.822
ECO40-3S/4 [f]
590
530
472
566
537
519
502
448
431
531
490
478
419
0.82
ECO40-1L/4 [f]
645
585
516
619
587
568
548
490
471
581
535
522
469
0.818
ECO40-1.5L/4 [f]
722
652
578
693
657
635
614
549
527
650
600
585
513
0.774
ECO40-2L/4 [f]
798
738
632
758
719
695
672
600
577
711
656
640
561
0.735
ECO40-VL/4 [f]
900
830
720
864
819
792
766
684
657
810
747
729
639
0.735
ECO43-1SN/4 [f]
960
870
768
922
874
845
816
730
701
864
797
778
682
0.775
ECO43-2SN/4 [f]
1088
995
870
1044
991
957
924
836
795
979
904
882
773
0.785
ECO43-1LN/4 [f]
1290
1173
1032
1238
1174
1135
1097
980
942
1161
1071
1045
916
0.772
ECO43-2LN/4 [f]
1521
1404
1217
1460
1384
1338
1293
1156
1110
1369
1262
1232
1080
0.77
ECO43-VL/4 [f]
1700
1540
1360
1632
1547
1495
1445
1292
1241
1530
1411
1377
1207
0.77
ECO46-1S/4 [f]
1755
1575
1404
1685
1597
1544
1492
1334
1281
1580
1457
1422
1246
0.733
ECO46-1.5S/4 [f]
1930
1735
1544
1853
1756
1698
1641
1467
1409
1738
1602
1564
1370
0.733
ECO46-2S/4 [f]
2105
1870
1684
2021
1916
1852
1789
1600
1537
1895
1747
1705
1495
0.722
ECO46-1L/4 [f]
2455
2215
1964
2357
2234
2160
2087
1866
1792
2210
2038
1989
1743
0.729
ECO46-1.5L/4 [f]
2690
2395
2152
2583
2448
2367
2287
2045
1964
2422
2233
2179
1910
0.729
ECO46-2L/4 [f]
2920
2625
2336
2803
2657
2570
2482
2219
2132
2628
2424
2365
2073
0.7
Marine Alternators
[a] 230V/400V
[f] 260V/450V/520V/900V – 277V/480V/554V/960V
[b] 115V/200V/230V/400V
[G] To size the machine for IP 45 protection, multiply the
[c] 230V/400V/460V/800V
considering the required operating temperature and
temperature rise. For inlet air lter only, consider a
factor of 0.93
[d] 260V/450V – 277V/480V
[e] 130V/225V/260V/450V - 138V/240V/277V/480V
Note: Survey Society Classification
Amb. Temp
Temp. Rise [°C]
[°C]
Class H
Class F
Class B
Rina
40
125
105
80
45
120
100
75
Germanischer Lloyd
40
125
105
80
45
120
100
75
Lloyd’s Register
Der Norske Veritas
Bureau Veritas
American Bureau of Shipping
Korean Register
40
115
100
75
45
110
95
70
40
125
105
80
45
120
100
75
40
125
105
80
45
120
100
75
40
125
105
80
45
120
100
75
50
115
95
70
40
125
100
80
45
120
95
75
50
115
90
70
Ambient temperature and temperature rise classification
can be changed according to the requirements of the survey
societies. Therefore, please consider the information quoted
as an indication only. Mecc Alte is not responsible for incorrect
sizing based upon this guide.
Variation are possible if different voltages are requested.
Mecc Alte SpA
Spain
India
China
Via Roma
20 – 36051 Creazzo
Vicenza – ITALY
T: +39 0444 396111
F: +39 0444 396166
E: info@meccalte.it
aftersales@meccalte.it
Mecc Alte España S.A.
C/ Rio Taibilla, 2
Polig. Ind. Los Valeros
03178 Benijofar (Alicante)
T: +34 (0) 96 6702152
F: +34 (0) 96 6700103
E: info@meccalte.es
aftersales@meccalte.es
Mecc Alte India PVT LT D
Plot NO: 1, Sanaswadi
Talegaon
Dhamdhere Roa d
Taluka: Shirur, District:
Pune - 41220 8
Maharashtra, India
T: +91 2137 619600
F: +91 2137 619699
E: info@meccalte.in
aftersales@meccalte.in
Mecc Alte Alternator Haimen LTD
755 Nanhai East Rd
Jiangsu HEDZ 226100 PRC
T: +86 (0) 513 82325758
F: +86 (0)513 82325768
E: info@meccalte.cn
aftersales@meccalte.cn
United Kingdom
Mecc Alte U.K. LTD
6 Lands’ End Way
Oakham
Rutland
T: +44 (0) 1572 771160
F: +44 (0) 1572 771161
E: info@meccalte.co.uk
aftersales@meccalte.co.uk
Germany
France
Far East
Mecc Alte International S.A.
Z.E.La Gagnerie
16330 ST.Amant De Boixe
T: +33 (0) 545 397562
F: +33 (0) 545 398820
E: info@meccalte.fr
aftersales@meccalte.fr
Mecc Alte (F.E.) PTE LTD
19 Kian Teck Drive
Singapore 628836
T: +65 62 657122
F: +65 62 653991
E: info@meccalte.com.sg
aftersales@meccalte.com.sg
Mecc Alte Generatoren GmbH
Ensener Weg 21
D-51149 Köln
T: +49 (0) 2203 503810
F: +49 (0) 2203 503796
E: info@meccalte.de
aftersales@meccalte.de
U.S.A. and Canada
Mecc Alte Inc.
1229 Adam Drive
McHenry, IL, 60051
T: +1 815 344 0530
F: +1 815 344 0535
E: info@meccalte.us
aftersales@meccalte.us
Australia
Mecc Alte Alternators PTY LTD
10 Duncan Road, PO Box
1046
Dry Creek, 5094, South
Australia
T: +61 (0)8 8349 8422
F: +61 (0)8 8349 8455
E: info@meccalte.com.au
aftersales@meccalte.com.au
www.meccalte.com
MASPA: 03.2014 | V03