CUMMINS MDKBK, MDKBH, MDKBJ, MDKBW, MDKBL Pocket Manual

Marine
Generators
Pocket Guide

Introduction ..............................................................1

Service Support ........................................................1

Warranty ...................................................................2

Maintenance and Parts .............................................3

Cruise Kits ................................................................4

Accessories and Options ...........................................6

Diagnostics ...............................................................7

Starting Procedure ..................................................10

Quiet Diesel™ (QD) Series

(kW, 50/60 Hz, Model)

4/5 QD MDKBH .......................................................12

6/7.5 QD MDKBJ ....................................................14

7/9 QD MDKBL .......................................................16

7/9 QD MDKBK space saver ...................................18

8 QD 50HZ MDKBW ................................................20

9.5/11.5 QD MDKBM ..............................................22

11/13.5 QD MDKBN ................................................24

13.5/17 QD MDKBP ................................................26

17.5/21.5 QD MDKBR .............................................28

19/23 QD MDKBV ...................................................30

22.5/27.5 QD MDKBT .............................................32

27/32 QD MDKBU ...................................................34

35 QD 50 Hz MDDCK ..............................................36

40 QD 60 Hz MDDCA ..............................................38

40 QD 50 Hz MDDCF ..............................................40

50 QD 50 Hz MDDCG ..............................................42

55 QD 60 Hz MDDCB ..............................................44

65 QD 60 Hz MDDCC ..............................................46

65 QD 50 Hz MDDCH ..............................................48

80 QD 60 Hz MDDCD ..............................................50

80 QD 50 Hz MDDCJ ..............................................52

99 QD 60 Hz MDDCE ..............................................54

Cummins Onan | 1

Introduction

This Cummins® Onan® Marine
Generators Pocket Guide offers
basic information on our line of diesel
generator sets from 4 to 99 kW. More
information about all models, including
complete specifications, the latest
news releases, generator set installation
outline drawings, accessories, and
much more can be found at
www.cumminsonan.com.

Service Support

Cummins Onan generator sets are
supported by the largest and best­trained worldwide certified Distributor/
Dealer network in the industry. That
means wherever your journey takes
you, you can feel confident a Cummins
Onan Distributor/Dealer is nearby.
The largest network in the business
makes it easier to get genuine parts,
quality service, and expert installation
assistance when and where you need
them. Our extensive training and
certification process demonstrates
our strong commitment to exceptional
product service and support. To find
the nearest authorized Cummins Onan
generator certified dealer, visit

www.cumminsonan.com/locator.

Warranty

The Cummins Onan Limited Warranty
for Marine Generators covers the
generators for a period of five (5) years
or 2,000 hours, whichever occurs
first, from date of delivery to the
first retail purchaser. This coverage
applies to the original owner and all
subsequent owners for the duration of
the coverage—at no additional charge
or deductibles for the customer. Parts,
labor including diagnostic labor, limited
travel, and removal and reinstallation
are covered for the first and second
years on virtually everything except
routine maintenance. Parts, labor and
travel on selected power train and
generator parts are warranted for the
remaining years or 2,000 hours.

We also offer other warranty options
to address customers’ diverse power
needs. Please contact Cummins
Onan Distributor/Dealer for more
details. Ourwell trained professional
technicians will be more than happy
to make recommendations by your
specific needs.

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Our extensive global support and
distribution network is there for you,
worldwide. Our service technicians
and engineers are highly trained with
certification requirements. We strive to
provide our customers with peace of
mind and a better boating experience.

Maintenance and Parts

To obtain an Instruction Sheet ( F-1576)
providing brief operating instructions
for the QD Series (including pre-start
checks, starting the generator, and
shutdown codes) plus a periodic
maintenance schedule and list of
maintenance parts, or to order genuine
Cummins Onan parts, please contact
the Cummins Onan Distributor/Dealer
nearest to you.

Cruise Kits

The cruise kits provide all the
necessary and essential generator
maintenance and service parts boaters
need for worry-free voyages. Enjoy
peace-of-mind by having the parts on
hand for routine maintenance.

Included in the cruise kits are the
following parts:

> Oil filter – 2 units

> Oil filter wrench – 1 unit*

> Fuel filter – 2 units

> Sea water pump impeller kit – 2 units

> V-belt – 1 unit

> Zinc pencil – 2 units**

> Convenient plastic carrying case

> Laminated marine service &
maintenance schedule***

* For MDKBJ/BW only

** For MDKBH and MDKBJ/BW zinc pencil
is not required and not included

*** For current models only

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Models and part numbers include:

Model Part Number

MDKBH 100-3478-58

MDKBJ, MDKBW A029E631

MDKBK, MDKBL, MDKBM, MDKBN 100-3478-52

MDKBT, MDKBU 100-3478-60

MDKBP, MDKBR 100-3478-61
(12 V Negative Ground Spec D & up)

MDKBP, MDKBR 100-3478-62
(24 V Negative Ground Spec D & up)

MDKBP, MDKBR 100-3478-63
(Isolated Ground Spec D & up)

MDKBV (12 V Negative Ground) 100-3478-61

MDKBV (24 V Negative Ground) 100-3478-62

MDKBV (Isolated Ground) 100-3478-63

MDDCA/B/C/F/G/K 541-1529-51

MDDCD/E/H/J 541-1529-52

To order kits, contact your closest
Cummins Onan Distributor/Dealer.

Accessories and
Options

Cummins Onan offers a variety of
commonly used accessories and
options. Following is a partial list of
categories of accessories and options
available. For accessories catalogs or
model specification sheets, visit
www.cumminsonan.com.

Accessories available include sound
shields, remote-mounted digital
displays, harnesses, AC transfer
switches, DC terminal boot kit,
batteries, siphon break, mufflers,
exhaust water separators, resonators,
fuel water separator, hose barbs, and
pipe adapters; and conversion kits
including set-mounted digital displays,
belt covers, low coolant level switch,
AC output breakers, keel cooling,
exhaust outlet, power take-off (PTO),
and isolated ground conversions.

Options that are available when you
order the generator (factory-installed)
include 12 or 24 V DC, sound shields,
set-mounted digital displays, low
coolant level shutdown, keel cooling,
dry exhaust, front power take-off (PTO),
and others.

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Not all accessories or options are
available for every model; visit
www.cumminsonan.com for complete
specification information.

Diagnostics

The diagnostic features were designed
with the customer in mind. Most
generators will trip a breaker when
something has gone wrong, however,
you’re never really sure what happened.
With the information the diagnostic
indicator provides, knowing what
happened may make the difference
between enjoying your weekend outing
or waiting for a service call. If a service
call is required, the knowledge you
have to give the service technician will
expedite the repair and get you on your
way as quickly as possible. Our goal is
to make boating even more enjoyable.

Cummins Onan generators have a
number of self-protective shutdowns
including high engine coolant
temperature, high exhaust temperature,
low oil pressure, over speed, over
voltage, no raw water flow, and
many others.

Following a protective shutdown,
the status light on the generator will
repeatedly blink a 1 or 2 digit code.
A chart, mounted on the generator,
provides an explanation of common
faults such as high engine coolant
temperature, high exhaust temperature,
or low oil pressure. Additional fault
codes and troubleshooting tips are
listed in the Operator’s Manual. You
can also view fault codes in text
on the digital display, if the boat is
so equipped, or through network
communications on various displays.
These fault codes assist the operator
or service personnel in evaluating a
variety of other operating conditions
and service checks. As many as
31 fault and warning codes can be
displayed. Many times the boat owner
is able to determine the cause of the
shutdown and fix it himself. If service
is required, the boat owner has access
to diagnostic information the service
person can use to assist in correcting
the problem.

8 | Cummins Onan

Electronic control

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Cummins Onan Digital Display

The Cummins Onan Digital Display,
makes it easy for the user to monitor
generator operation. The user can view
generator status, including AC voltage,
AC frequency, coolant temperature, oil
pressure, battery voltage, and generator
hours; be alerted to a pre-alarm
condition; and, if the generator shuts
down, view the notification and
diagnostic message in text. In addition,
the panel provides a remote start/stop
and a visual indication of generator
status to let you know the generator
is running, is in a pre-alarm mode, or
has stopped.

Starting Procedure

The Cummins Onan smart technology
makes starting the generator easy
and trouble-free. The generator can
be started from the start/stop switch
which is standard on every generator,
or a remote-mounted start/stop switch
as with other QD models, or from the
digital display.

Starting—using the
start/stop switch

To start, simply push and hold the start
switch until the green light comes on;
then the operator can release the start
switch. To turn off the generator, simply
push the stop switch to stop.

Starting—using the Cummins
Onan Digital Display

The digital display is easy to turn on
by simply pressing any button on the
display. To start the generator, push
and hold the start button until the
blinking green light stays on. To stop,
press the stop button.

Refer to the Operator’s Manual for
complete instructions.

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By pushing and holding the start
switch, the controls automatically:

> Runs through a self check

> Activates fuel pump priming

> Checks engine coolant temperature

> Energizes glow plugs for

appropriate amount of time based
on coolant temperature (2–15
seconds)

> Begins cranking the starter

> Disengages starter automatically

when reaching 800 rpm

> Displays green run light when

generator reaches 60/50 Hz

> Glow plugs remain on for 2–5

seconds (post glow) after start
based on coolant temperature to
improve combustion and reduce
smoke

Model MDKBH

kW Hz RPM Ph Voltage Amps

5 60 2900 1 120 41.7

120/240 41.7/20.8

4 50 2400 1 110/220 36.4/18.2

115/230 34.8/17.4

120/240 33.3/16.6

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4/5 QD

Quiet Diesel

4 kW 50 Hz/5 kW 60 Hz

4/5 QD • Quiet Diesel

Dimensions

Housed, mm (in) (Not available unhoused)
Length 662 (26.1) x Width 511 (20.1) x
Height 524 (20.6)
Weight, kg (lb) 166 (365)

Sound Level

71 dB(A) at 60 Hz, 68 dB(A) at 50 Hz,
full load at 1 meter

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

4 kW/50 Hz 5 kW/60 Hz

1/4 load 0.8 (0.21) 1.0 (0.27)
1/2 load 1.0 (0.28) 1.3 (0.35)
3/4 load 1.3 (0.35) 1.7 (0.44)
Full load 1.7 (0.44) 2.1 (0.55)

Features

> Extensive diagnostic information
> Optional SAE J1939 or SmartCraft

network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Optional remote Digital Display
> Largest support network
> Transferable 5 year warranty

Cummins Onan | 13

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Model MDKBJ

kW Hz RPM Ph Voltage Amps

7.5 60 2900 1 120 62.5
120/240 62.5/31.3

6.0 50 2400 1 110/220 54.5/27.3
115/230 52.2/26.1
120/240 50.0/25.0

6/7.5 QD

Quiet Diesel

6 kW 50 Hz/7.5 kW 60 Hz

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6/7.5 QD • Quiet Diesel

Dimensions

Housed, mm (in) (Not available unhoused)
Length 664 (26.1) x Width 583 (22.9) x
Height 535 (21.1)
Weight, kg (lb) 195 (429)

Sound Level

71 dB(A) at 60 Hz, 69 dB(A) at 50 Hz, full
load at 1 meter with sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

6.0 kW/50 Hz 7.5 kW/60 Hz

1/4 load 1.12 (0.30) 1.40 (0.37)
1/2 load 1.46 (0.39) 1.84 (0.48)
3/4 load 1.84 (0.48) 2.33 (0.61)
Full load 2.28 (0.60) 2.93 (0.70)

Features

> Extensive diagnostic information
> Optional SAE J1939 or SmartCraft

network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Optional remote Digital Display
> Largest support network
> Transferable 5 year warranty

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7/9 QD

Quiet Diesel

7 kW 50 Hz/9 kW 60 Hz

Model MDKBL

kW Hz RPM Ph Voltage Amps

9 60 1800 1 120 75

120/240 75/37.5

7 50 1500 110/220 63.6/31.8

115/230 60.9/30.4

120/240 58.3/29.2

7/9 QD • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 911 (35.9) x Width 566 (22.3) x
Height 585 (23.04)
Weight, kg (lb) 252 (555)

Housed, mm (in)
Length 911 (35.9) x Width 566 (22.3) x
Height 593 (23.4);
Weight, kg (lb) 272 (600)

Sound Level

66 dB(A) at 60 Hz, 65 dB(A) at 50 Hz,
full load at 1 meter with optional Cummins
Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

7 kW/50 Hz 9 kW/60 Hz

1/4 load 1.1 (0.3) 1.3 (0.3)
1/2 load 1.5 (0.4) 1.9 (0.5)
3/4 load 2.0 (0.5) 2.6 (0.7)
Full load 2.8 (0.8) 3.8 (1.0)

Features

> Extensive diagnostic information
> Optional SAE J1939 or SmartCraft

network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Optional remote Digital Display
> Largest support network
> Transferable 5 year warranty

Cummins Onan | 17

Model MDKBK

kW Hz RPM Ph Voltage Amps

9 60 1800 1 120 75

120/240 75/37.5

7 50 1500 110/220 63.6/31.8

115/230 60.9/30.4

120/240 58.3/29.2

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7/9 QD

Quiet Diesel

space saver

7 kW 50 Hz/9 kW 60 Hz

7/9 QD • Quiet Diesel space saver

Dimensions

Unhoused, mm (in) (Not available housed)
Length 823 (32.4) x Width 479 (18.9) x
Height 560 (22.05)
Weight, kg (lb) 238 (525)

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

7 kW/50 Hz 9 kW/60 Hz

1/4 load 1.1 (0.3) 1.3 (0.3)
1/2 load 1.5 (0.4) 1.9 (0.5)
3/4 load 2.0 (0.5) 2.6 (0.7)
Full load 2.8 (0.8) 3.8 (1.0)

Features

> Extensive diagnostic information
> Optional SAE J1939 or SmartCraft

network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Optional remote Digital Display
> Largest support network
> Transferable 5 year warranty

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Model MDKBW

kW Hz RPM Ph Voltage Amps

8 50 2880 1 110/220 72.7/36.4
1 115/230 69.6/34.8
1 120/240 66.6/33.3

8 QD

Quiet Diesel

8 kW 50 Hz

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8 QD • Quiet Diesel

Dimensions

Housed, mm (in)
Length 664 (26.1) x Width 583 (22.9) x
Height 535 (21.1)
Weight, kg (lb) 195 (429)

Sound Level

72.5 dB(A) at 50 Hz, full load at 1 meter

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

8 kW/50 Hz

1/4 load 1.41 (0.37)
1/2 load 1.85 (0.49)
3/4 load 2.35 (0.62)
Full load 2.97 (0.78)

Features

> Extensive diagnostic information
> Optional SAE J1939 or SmartCraft

network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Optional remote Digital Display
> Largest support network
> Transferable 5 year warranty

Model MDKBM

kW Hz RPM Ph Voltage Amps

11.5 60 1800 1 120 95.8

120/240 95.8/47.9

9.5 50 1500 110/220 86.4/43.2

115/230 82.6/41.3

120/240 79.2/39.6

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9.5/11.5 QD

Quiet Diesel

9.5 kW 50 Hz/11.5 kW 60 Hz

9.5/11.5 QD • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 1033 (40.7) x Width 566 (22.3) x
Height 585 (23.04)
Weight, kg (lb) 290 (640)

Housed, mm (in)
Length 1033 (40.7) x Width 566 (22.3) x
Height 593 (23.4)
Weight, kg (lb) 315 (695)

Sound Level

66 dB(A) at 60 Hz, 65 dB(A) at 50 Hz,
full load at 1 meter with optional Cummins
Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

9.5 kW/50 Hz 11.5 kW/60 Hz

1/4 load 1.4 (0.4) 1.7 (0.4)
1/2 load 2.1 (0.6) 2.5 (0.7)
3/4 load 2.8 (0.7) 3.2 (0.8)
Full load 3.4 (0.9) 3.9 (1.0)

Features

> Extensive diagnostic information
> Optional SAE J1939 or SmartCraft

network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Optional remote Digital Display
> Largest support network
> Transferable 5 year warranty

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Model MDKBN

kW Hz RPM Ph Voltage Amps

13.5 60 1800 1 120 112.5

120/240 112/56.3

11 50 1500 110/220 100/50

115/230 95.7/47.8

120/240 91.7/46

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11/13.5 QD

Quiet Diesel

11 kW 50 Hz/13.5 kW 60 Hz

11/13.5 QD • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 1033 (40.7) x Width 566 (22.3) x
Height 585 (23.04)
Weight, kg (lb) 290 (640)

Housed, mm (in)
Length 1033 (40.7) x Width 566 (22.3) x
Height 593 (23.4)
Weight, kg (lb) 315 (695)

Sound Level

66 dB(A) at 60 Hz, 65 dB(A) at 50 Hz,
full load at 1 meter with optional Cummins
Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

11 kW/50 Hz 13.5 kW/60 Hz

1/4 load 1.5 (0.4) 1.8 (0.5)
1/2 load 2.2 (0.6) 2.6 (0.7)
3/4 load 3.0 (0.8) 3.6 (1.0)
Full load 4.0 (1.0) 4.5 (1.2)

Features

> Extensive diagnostic information
> Optional SAE J1939 or SmartCraft

network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Optional remote Digital Display
> Largest support network
> Transferable 5 year warranty

Cummins Onan | 25

Model MDKBP

kW Hz RPM Ph Voltage Amps

17 60 1800 1 120/240 141.7/70.8

3 120/208 59.0

13.5 50 1500 1 110/220 122.7/61.4

115/230 117.4/58.7

120/240 112.5/56.3

3 220/380 25.6

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13.5/17 QD

Quiet Diesel

13.5 kW 50 Hz/17 kW 60 Hz

13.5/17 QD • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 1127 (44.4) x Width 602 (23.7) x
Height 672 (26.5)
Weight, kg (lb) 377 (830)

Housed, mm (in)
Length 1127 (44.4) x Width 602 (23.7) x
Height 698 (27.5)
Weight, kg (lb) 404 (890)

Sound Level

67 dB(A) at 60 Hz, 64 dB(A) at 50 Hz,
full load at 1 meter with optional Cummins
Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

13.5 kW/50 Hz 17 kW/60 Hz

1/4 load 1.9 (0.5) 2.3 (0.6)
1/2 load 2.7 (0.7) 3.3 (0.9)
3/4 load 3.6 (0.9) 4.5 (1.2)
Full load 4.8 (1.3) 6.0 (1.6)

Features

> Extensive diagnostic information
> Optional SAE J1939 or SmartCraft

network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Optional remote Digital Display
> Largest support network
> Transferable 5 year warranty

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28 | Cummins Onan

Model MDKBR

kW Hz RPM Ph Voltage Amps

21.5 60 1800 1 120/240 179/89.6

3 120/208 74.6

17.5 50 1500 1 110/220 159.1/79.5

115/230 152.2/76.1

120/240 145.8/72.9

3 220/380 33.2

17.5/21.5 QD

Quiet Diesel

17.5 kW 50 Hz/21.5 kW 60 Hz

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17.5/21.5 QD • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 1127 (44.4) x Width 602 (23.7) x
Height 672 (26.5)
Weight, kg (lb) 395 (870)

Housed, mm (in)
Length 1127 (44.4) x Width 602 (23.7) x
Height 698 (27.5)
Weight, kg (lb) 422 (930)

Sound Level

67 dB(A) at 60 Hz, 64 dB(A) at 50 Hz,
full load at 1 meter with optional Cummins
Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

17.5 kW/50 Hz 21.5 kW/60 Hz

1/4 load 2.3 (0.6) 2.8 (0.7)
1/2 load 3.4 (0.9) 4.0 (1.0)
3/4 load 4.7 (1.2) 5.4 (1.4)
Full load 6.5 (1.7) 7.3 (1.9)

Features

> Extensive diagnostic information
> Optional SAE J1939 or SmartCraft

network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Optional remote Digital Display
> Largest support network
> Transferable 5 year warranty

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Model MDKBV

kW Hz RPM Ph Voltage Amps

23 60 1800 1 120/240 191.7/95.8

3 120/208 79.8

19 50 1500 1 110/220 172.7/86.4

115/230 165.2/82.6

3 220/380 36.1

19/23 QD

Quiet Diesel

19 kW 50 Hz/23 kW 60 Hz

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19/23 QD • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 1127 (44.4) x Width 602 (23.7) x
Height 672 (26.5)
Weight, kg (lb) 395 (870)

Housed, mm (in)
Length 1127 (44.4) x Width 602 (23.7) x
Height 698 (27.5)
Weight, kg (lb) 422 (930)

Sound Level

67 dB(A) at 60 Hz, 64 dB(A) at 50 Hz,
full load at 1 meter with optional Cummins
Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

19 kW/50 Hz 23 kW/60 Hz

1/4 load 2.5 (0.7) 3.0 (0.8)
1/2 load 3.9 (1.0) 4.4 (1.2)
3/4 load 5.2 (1.4) 5.4 (1.6)
Full load 6.6 (1.7) 7.4 (2.0)

Features

> Extensive diagnostic information
> Optional SAE J1939 or SmartCraft

network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Optional remote Digital Display
> Largest support network
> Transferable 5 year warranty

32 | Cummins Onan

Model MDKBT

kW Hz RPM Ph Voltage Amps

27.5 60 1800 1 120/240 229/115
3 120/208 95.4

22.5 50 1500 1 110/220 205/102
115/230 196/97.8

120/240 188/93.8

3 220/380 42.7

22.5/27.5 QD

Quiet Diesel

22.5 kW 50 Hz/27.5 kW 60 Hz

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22.5/27.5 QD •Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 1358 (53.5) x Width 622 (24.5) x
Height 731 (28.8)
Weight, kg (lb) 565 (1245)

Housed, mm (in)
Length 1358 (53.5) x Width 622 (24.5) x
Height 761 (30.0)
Weight, kg (lb) 601 (1325)

Sound Level

68 dB(A) at 60 Hz, 67 dB(A) at 50 Hz,
full load at 1 meter with optional Cummins
Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

22.5 kW/50 Hz 27.5 kW/60 Hz

1/4 load 3.0 (0.8) 3.7 (1.0)
1/2 load 4.0 (1.1) 5.1 (1.3)
3/4 load 5.2 (1.4) 6.7 (1.8)
Full load 7.0 (1.8) 9.2 (2.4)

Features

> Extensive diagnostic information
> Optional SAE J1939 or SmartCraft

network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Optional remote Digital Display
> Largest support network
> Transferable 5 year warranty

Model MDKBU

kW Hz RPM Ph Voltage Amps

32 60 1800 1 120/240 267/133

3 120/208 111

27 50 1500 1 110/220 245/123

115/230 235/117

120/240 225/113

3 220/380 51.3

34 | Cummins Onan

27/32 QD

Quiet Diesel

27 kW 50 Hz/32 kW 60 Hz

27/32 QD • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 1358 (53.5) x Width 622 (24.5) x
Height 731 (28.8)
Weight, kg (lb) 590 (1300)

Housed, mm (in)
Length 1358 (53.5) x Width 622 (24.5) x
Height 761 (30.0)
Weight, kg (lb) 626 (1380)

Sound Level

68 dB(A) at 60 Hz, 67 dB(A) at 50 Hz,
full load at 1 meter with optional Cummins
Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

27 kW/50 Hz 32 kW/60 Hz

1/4 load 3.0 (0.8) 3.8 (1.0)
1/2 load 4.7 (1.2) 5.6 (1.5)
3/4 load 6.2 (1.6) 7.6 (2.0)
Full load 9.1 (2.4) 11.2 (3.0)

Features

> Extensive diagnostic information
> Optional SAE J1939 or SmartCraft

network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Optional remote Digital Display
> Largest support network
> Transferable 5 year warranty

Cummins Onan | 35

36 | Cummins Onan

Model MDDCK

kW Hz Cyl RPM Ph Voltage Amps

35 50 4 1500 1 115/230 304.3/152.2

110/220 318.2/159.1

120/240 291.7/145.8

3 240/416 105.2/60.7

115/230 219.6/109.8

220/380 114.8/66.5

Additional configurations/voltages available.

35 QD

Quiet Diesel

35 kW 50 Hz

Cummins Onan | 37

35 QD (50 Hz) • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 1734 (68.3) x Width 822 (32.4) x
Height 994 (39.1)
Weight, kg (lb) 990 (2183)

Housed, mm (in)
Length 1738 (68.4) x Width 840 (33.1) x
Height 1039 (40.9)
Weight, kg (lb) 1090 (2403)

Sound Level

72 dB(A) at 50 Hz, full load at 1 meter
with optional Cummins Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

35 kW/50 Hz

1/4 load 3.9 (1.0)

1/2 load 6.4 (1.7)

3/4 load 9.0 (2.4)

Full load 11.5 (3.0)

Features

> Extensive diagnostic information
> SAE J1939 network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Set-mounted Digital Display
> Largest support network
> Transferable 5 year warranty

Model MDDCA

kW Hz Cyl RPM Ph Voltage Amps

40 60 4 1800 1 120/240 333.4/166.7

3 240/416 69.4

127/220 131.2

255/440 65.6

120/208 138.8

120/240 120.3

Additional configurations/voltages available.

38 | Cummins Onan

40 QD

Quiet Diesel

40 kW 60 Hz

40 QD(60 Hz) • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 1734 (68.3) x Width 822 (32.4) x
Height 994 (39.1)
Weight, kg (lb) 972 (2143)

Housed, mm (in)
Length 1738 (68.4) x Width 840 (33.1) x
Height 1039 (40.9)
Weight, kg (lb) 1072 (2363)

Sound Level

72 dB(A) at 60 Hz, full load at 1 meter
with optional Cummins Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

40 kW/60 Hz

1/4 load 4.5 (1.2)

1/2 load 7.2 (1.9)

3/4 load 9.9 (2.6)

Full load 12.7 (3.4)

Features

> Extensive diagnostic information
> SAE J1939 network communications
> Electronic governing for quality power
> Low noise and vibration
> Set-mounted Digital Display
> Largest support network
> Transferable 5 year warranty

Cummins Onan | 39

Model MDDCF

kW Hz Cyl RPM Ph Voltage Amps

40 50 4 1500 1 115/230 347.8/173.9

110/220 363.6/181.8

120/240 333.4/166.7

3 240/416 69.4

115/230 125.5

220/380 76.0

Additional configurations/voltages available.

40 | Cummins Onan

40 QD

Quiet Diesel

40 kW 50 Hz

40 QD (50 Hz) • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 1734 (68.3) x Width 822 (32.4) x
Height 994 (39.1)
Weight, kg (lb) 998 (2200)

Housed, mm (in)
Length 1738 (68.4) x Width 840 (33.1) x
Height 1039 (40.9)
Weight, kg (lb) 1098 (2420)

Sound Level

72 dB(A) at 50 Hz, full load at 1 meter
with optional Cummins Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

40 kW/50 Hz

1/4 load 3.9 (1.0)

1/2 load 6.4 (1.7)

3/4 load 9.0 (2.4)

Full load 11.5 (3.0)

Features

> Extensive diagnostic information
> SAE J1939 network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Set-mounted Digital Display
> Largest support network
> Transferable 5 year warranty

Cummins Onan | 41

Model MDDCG

kW Hz Cyl RPM Ph Voltage Amps

50 50 4 1500 1 115/230 434.8/217.4

110/220 454.6/227.3

120/240 416.6/208.3

3 240/416 86.7

115/230 156.9

220/380 95.0

Additional configurations/voltages available.

50 QD

Quiet Diesel

50 kW 50 Hz

42 | Cummins Onan

50 QD (50 Hz) • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 1779 (70.0) x Width 822 (32.4) x
Height 994 (39.1)
Weight, kg (lb) 1067 (2352)

Housed, mm (in)
Length 1783 (70.2) x Width 840 (33.1) x
Height 1039 (40.9)
Weight, kg (lb) 1167 (2572)

Sound Level

72 dB(A) at 50 Hz, full load at 1 meter
with optional Cummins Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

50 kW/50 Hz

1/4 load 4.6 (1.2)

1/2 load 7.6 (20.)

3/4 load 10.8 (2.9)

Full load 14.1 (3.7)

Features

> Extensive diagnostic information
> SAE J1939 network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Set-mounted Digital Display
> Largest support network
> Transferable 5 year warranty

Cummins Onan | 43

Model MDDCB

kW Hz Cyl RPM Ph Voltage Amps

55 60 4 1800 1 120/240 458.4/229.2

3 240/416 95.4

127/220 180.4

255/440 90.2

120/208 190.8

120/240 165.4

Additional configurations/voltages available.

44 | Cummins Onan

55 QD

Quiet Diesel

55 kW 60 Hz

55 QD (60 Hz) • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 1779 (70.0) x Width 822 (32.4) x
Height 994 (39.1)
Weight, kg (lb) 1067 (2352)

Housed, mm (in)
Length 1783 (70.2) x Width 840 (33.1) x
Height 1039 (40.9)
Weight, kg (lb) 1167 (2572)

Sound Level

72 dB(A) at 60 Hz, full load at 1 meter
with optional Cummins Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

55 kW/60 Hz

1/4 load 5.5 (1.4)

1/2 load 9.3 (2.4)

3/4 load 13.0 (3.4)

Full load 16.8 (4.4)

Features

> Extensive diagnostic information
> SAE J1939 network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Set-mounted Digital Display
> Largest support network
> Transferable 5 year warranty

Cummins Onan | 45

Model MDDCC

kW Hz Cyl RPM Ph Voltage Amps

65 60 4 1800 1 120/240 541.6/270.8

3 240/416 112.8

127/220 213.2

255/440 106.6

120/208 225.5

120/240 195.5

Additional configurations/voltages available.

46 | Cummins Onan

65 QD

Quiet Diesel

65 kW 60 Hz

65 QD (60 Hz) • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 1779 (70.0) x Width 822 (32.4) x
Height 994 (39.1)
Weight, kg (lb) 1067 (2352)

Housed, mm (in)
Length 1783 (70.2) x Width 840 (33.1) x
Height 1039 (40.9)
Weight, kg (lb) 1167 (2572)

Sound Level

72 dB(A) at 60 Hz, full load at 1 meter
with optional Cummins Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

65 kW/60 Hz

1/4 load 5.8 (1.5)

1/2 load 10.7 (2.8)

3/4 load 14.3 (4.0)

Full load 19.7 (5.2)

Features

> Extensive diagnostic information
> SAE J1939 network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Set-mounted Digital Display
> Largest support network
> Transferable 5 year warranty

Cummins Onan | 47

Model MDDCH

kW Hz Cyl RPM Ph Voltage Amps

65 50 6 1500 1 115/230 565.2/282.6

110/220 591.0/295.5

120/240 541.6/270.8

3 240/416 112.8

115/230 204.0

220/380 123.4

Additional configurations/voltages available.

48 | Cummins Onan

65 QD

Quiet Diesel

65 kW 50 Hz

65 QD (50 Hz) • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 2142 (84.3) x Width 822 (32.4) x
Height 994 (39.1)
Weight, kg (lb) 1320 (2910)

Housed, mm (in)
Length 2146 (84.5) x Width 840 (33.1) x
Height 1039 (40.9)
Weight, kg (lb) 1434 (3161)

Sound Level

70 dB(A) at 50 Hz, full load at 1 meter
with optional Cummins Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

65 kW/50 Hz

1/4 load 5.7 (1.5)

1/2 load 9.9 (2.6)

3/4 load 14.1 (3.7)

Full load 18.4 (4.9)

Features

> Extensive diagnostic information
> SAE J1939 network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Set-mounted Digital Display
> Largest support network
> Transferable 5 year warranty

Cummins Onan | 49

Model MDDCD

kW Hz Cyl RPM Ph Voltage Amps

80 60 6 1800 1 120/240 666.6/333.3

3 240/416 138.8

127/220 262.4

255/440 131.2

120/208 277.6

120/240 240.6

Additional configurations/voltages available.

50 | Cummins Onan

80 QD

Quiet Diesel

80 kW 60 Hz

80 QD (60 Hz) • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 2142 (84.3) x Width 822 (32.4) x
Height 994 (39.1)
Weight, kg (lb) 1320 (2910)

Housed, mm (in)
Length 2146 (84.5) x Width 840 (33.1) x
Height 1039 (40.9)
Weight, kg (lb) 1434 (3161)

Sound Level

70 dB(A) at 60 Hz, full load at 1 meter
with optional Cummins Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

80 kW/60 Hz

1/4 load 7.6 (2.0)

1/2 load 13.2 (3.5)

3/4 load 18.7 (4.9)

Full load 24.2 (6.4)

Features

> Extensive diagnostic information
> SAE J1939 network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Set-mounted Digital Display
> Largest support network
> Transferable 5 year warranty

Cummins Onan | 51

Model MDDCJ

kW Hz Cyl RPM Ph Voltage Amps

80 50 6 1500 1 115/230 695.6/347.8

110/220 727.2/363.6

120/240 666.6/333.3

3 240/416 138.8

115/230 288.7

220/380 151.9

Additional configurations/voltages available.

52 | Cummins Onan

80 QD

Quiet Diesel

80 kW 50 Hz

80 QD (50 Hz) • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 2142 (84.3) x Width 822 (32.4) x
Height 994 (39.1)
Weight, kg (lb) 1320 (2910)

Housed, mm (in)
Length 2146 (84.5) x Width 840 (33.1) x
Height 1039 (40.9)
Weight, kg (lb) 1434 (3161)

Sound Level

70 dB(A) at 50 Hz, full load at 1 meter
with optional Cummins Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

80 kW/50 Hz

1/4 load 6.7 (1.8)

1/2 load 11.8 (3.1)

3/4 load 16.9 (4.5)

Full load 22.4 (5.9)

Features

> Extensive diagnostic information
> SAE J1939 network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Set-mounted Digital Display
> Largest support network
> Transferable 5 year warranty

Cummins Onan | 53

Model MDDCE

kW Hz Cyl RPM Ph Voltage Amps

99 60 6 1800 1 120/240 825.0/412.5

3 240/416 171.7

127/220 324.8

255/440 162.4

120/208 343.5

120/240 297.7

Additional configurations/voltages available.

54 | Cummins Onan

99 QD

Quiet Diesel

99 kW 60 Hz

For more information visit www.cumminsonan.com.
Specifications subject to change without notice.

99 QD (60 Hz) • Quiet Diesel

Dimensions

Unhoused, mm (in)
Length 2142 (84.3) x Width 822 (32.4) x
Height 994 (39.1)
Weight, kg (lb) 1320 (2910)

Housed, mm (in)
Length 2146 (84.5) x Width 840 (33.1) x
Height 1039 (40.9)
Weight, kg (lb) 1434 (3161)

Sound Level

72 dB(A) at 60 Hz, full load at 1 meter
with optional Cummins Onan sound shield

Fuel Consumption

No. 2 diesel fuel, L/hr (Gal/hr)

99 kW/60 Hz

1/4 load 9.2 (2.4)
1/2 load 15.5 (4.1)
3/4 load 22.9 (6.0)
Full load 29.4 (7.8)

Features

> Extensive diagnostic information
> SAE J1939 network communications
> Raw water flow protection
> Electronic governing for quality power
> Low noise and vibration
> Set-mounted Digital Display
> Largest support network
> Transferable 5 year warranty

Cummins Onan | 55

56 | Cummins Onan

NOTES

Cummins Onan | 57

NOTES

F-1487K (9/12)

Cummins Power Generation
1400 73rd Ave. NE
Minneapolis, MN 55432
USA
Phone [phone]
Toll-free 1 800 888 6626
Fax [phone]
Email www.cumminsonan.com/contact
www.cumminsonan.com

Cummins,® Onan,® the “C” logo and “Performance you rely on.™”
are trademarks or registered trademarks of Cummins Inc.
©2012 Cummins Power Generation. All Rights Reserved.
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