POWERTECH ENGINES INC.
Central & Northern California Operations: 2933 E Hamilton Ave., Fresno, California 93721
· Phone 559-264-1776
· Toll Free 800-784-1776
· Fax 559-264-2933
Southern California Operations: 1410-B S Acacia Ave., Fullerton, California 92831
· Phone 714-635-1776
· Toll Free 800-750-1776
· Fax 714-635-1771
HQ & Accounting: PO Box 3489, Los Altos, California 94024-0489
· Toll Free 800-944-1776
http://www.powertechengines.com
· Fax 650-964-3298
Mecc Alte SpA is one of the world's largest generator manufacturers, with an annual turnover exceeding
75 million euros. Headquartered in Italy, with manufacturing facilities in the UK and warehouse and
worldwide sales support facilities in the US, France, Germany, Poland, Spain, Singapore, and Australia,
Mecc Alte offers a wide range of generation products, from small 1 kW to 14 kW 3000 rpm and 3600 rpm
2-pole generators for portable applications, to very large 2400 kW 4-pole generators for stationary
applications.
Data files, parts lists, drawings, and manuals on some common Mecc Alte generators, including the older
AP, AR1, AR2, MR1, MR2 and the newer S15W, S15F, S16W, S20F, and S20W models can be directly
accessed from the index on our Mecc Alte Data Index page. If you need further data on a Mecc Alte model
not available from our index page, then the data can most likely be obtained from the download area of Mecc
Alte's main web site; which can be accessed from our web link to the Mecc Alte download area.
TRACTOR PTO GENERATORS
In addition to using Mecc Alte generator ends on some of the generator sets that we fabricate, we also offer a
wide range of Mecc Alte tractor style PTO generators, as can be seen in the selection of units in the photo
shown here. Each model is fitted with a gear reduction box. Not shown in the picture below is a conical
safety guard for the drive connection that is supplied with each PTO assembly
POWERTECH ENGINES INC - - Call us at (559) 264-1776, fax us at
(559) 264-2933, e-mail us at power@powertechengines.com, or write to
us at 2933 E. Hamilton Avenue, Fresno, CA 93721
Our US toll free parts line is (800) 750-1776
SIZING: In sizing a tractor PTO generator, it is important to make sure that 540 rpm tractor PTO's are
matched with 540 rpm PTO generators and that 1000 rpm tractor PTO's are matched with 1000 rpm
generators. In addition, a common rule of thumb is to insure the availability (at the tractor PTO) of about 1.7
HP for every kW of desired electrical power, although in some cases a bit less may be required.
TYPICAL SPECFICATIONS
MECC ALTE TRACTOR PTO GENERATORS
Model
Number
Estimated
Power PTO
Motor
PTO Input PTO
Generator
Generator
Rating, Input
Starting
HP for Weight,
RPM
Regulation
kW
RPM
kVA
full
pounds
output
3P2 - S20W-95/A
6.5
540
3600
13
Capacitor
11
80
3P2 - S20W110/A
7.5
540
3600
15
Capacitor
13
86
3P2 - S20W-130/A
9.0
540
3600
18
Capacitor
16
100
3P2 - S20FS-130/A
10.5
540
3600
19
Capacitor
18
112
3P2 - S20FS-160/A
12
540
3600
22
Capacitor
21
124
3P2 - S20F -200/A
14.4
540
3600
26
Capacitor
24
144
M5 - - ECO3-2L2
15
540
3600
37.5
AVR
26
211
M7 - ECO28-VL4
24
540
1800
50
AVR
35
420
M7 - ECO32-3S4
32
540
1800
80
AVR
55
532
M10 ECO32-1L4
40
540
1800
100
AVR
71
607
M9 - ECO32-3L4
55
540
1800
137.5
AVR
80
730
M9 - ECO34-1S4
68
1000
1800
170
AVR
118
882
M9 - ECO34-2S4
80
1000
1800
204
AVR
142
1027
Notes: The power ratings noted here are for continuous duty, single phase 120/240 VAC, 1.0 pF. For standby duty
these can be increased by 10% for 1 hour in every 6 hour period. All models shown here require a 1 3/8" - 6 spline
input shaft, commonly available at tractor dealers (or from us, if required). All 1800 rpm AVR regulated alternators
are 12 lead reconnectable machines, and can be connected for three phase operation with somewhat greater
power output capacity (~20%). The 3P2 gear reduction case is aluminum; the M5, M7, M9 & M10 gear cases are
cast iron. Data sheets for the actual Mecc Alte generator end used are either linked here in the table above, or
available upon request. The S20W and S20FS and S20F models replace older similar MR1 and MR2 models. For
example, the new style S20F-200/A can be used as an exact physical replacement for the older MR2-200/2, and it
will have an improved electrical rating.
All prices and specifications are subject to change without notice.
http://www.powertechengines.com
Optional Outlet Box – Good up to 10 kW
Another view of the PTO line up