Marine Generating
Sets up to 50 kVA
The Marine Engineers Preference...
BetaSet - Standard Marine Generators
Beta Marine has considerable experience from over
twenty years of manufacturing marine generating sets
for different applications: “Wide Beam” canal boats,
passenger ferries, cargo boats, fast patrol boats, sailing
yachts, barges, fishing boats, trawlers, tugs, commercial
vessels and “super yachts”.
Beta’s Gloucester
manufacturing facility
The development of these generating sets has resulted
in our standard range of marine generating sets based
on Kubota diesel engines from 3kVA up to 50kVA; and
we can also build to individual specifications.
We can supply most electrical voltages and frequencies
from 230 volt single phase; 415 volt 3 Phase; or any
other normal electrical requirement - 50Hz at both 1500,
3000 rev/min, or 60Hz at 1800 and 3600 rev/min.
BetaSet - Standard Marine Specifications
Beta Marine - Marine Generating Sets each having a Rated Output as detailed below, and operating; designed, built and
tested by Beta Marine Limited, each comprising:
• Beta Marine water cooled ‘Kubota’ diesel engine,
naturally aspirated, rated at either 1500 or 3000 rev/
min for operation in accordance with ISO 3046.
• Heat exchanger cooling complete with cupronicke
tube stack and phosphor bronze end caps and anode;
with fresh water and sea water pumps.
• Water cooled exhaust manifold and water injection
exhaust bend.
• 12 volt electric start system and stop solenoid valve,
2 wire grounded system (insulated return is standard
on BetaSets 26, 33, 40 & 49).
• Combined start/stop, alarm and protection module
is supplied loose with 3 metres of connection cable.
Module includes: Starting and Stopping push buttons,
an hours run meter and indicators with shutdown on
fault of low lubricating oil pressure and high coolant
temperature.
• Speed governor to control engine speed to the
requirements of ISO 3046 for diesel generating sets.
• Engine fuel oil, lubricating oil and air filters.
• Engine mounted Sump drain pump.
• Marine rated generator operating at 0.8pf, and 50 Hz,
ventilated drip proof enclosure with IP 23 protection,
single bearing construction. The generator is self
regulating, self excited and is complete with terminal
box and automatic voltage regulator.
• Engine and generator are close coupled together and
mounted on substantial steel feet with marine fail
safe anti-vibration mountings to isolate the set.
• Each generating set is “full load” tested in accordance
with our quality document QA023.
• 12 month warranty from date of commissioning or
18 months from date of despatch - which ever comes
first.
kVA rating - 1,500 rev/min - 50 Hz
kVA rating - 3,000 rev/min - 50 Hz
Single Phase
kVA Max.
3 Phase
kVA Max.
BetaSet 7
7.2
7.2
3
BetaSet 10
9.7
10.1
BetaSet 11
10.7
BetaSet 12
• Keel/box cooling versions are available and
alternative specifications and requirements can be
quoted on request.
Single Phase
kVA Max.
3 Phase
kVA Max.
BetaSet 4/2
4.0*
-
2
479
1.2
2.7
BetaSet 6/2
5.7*
7.7
2
479
2.1
1335
3.0
BetaSet 11/2
11.2
12.1
3
719
3.3
4
1498
3.5
BetaSet 22/2
22.0
23.1
4
1335
5.8
14.5
3
1647
4.3
BetaSet 25/2
24.8
25.9
4
1498
6.6
16.0
17.3
4
1857
4.8
BetaSet 21
19.8
21.1
4
2197
5.6
BetaSet 26
25.3
26.2
4
3318
6.2
BetaSet 33
32.0
33.5
4
3318
8.4
BetaSet 40
38.5
39.6
4
3769 10.7
BetaSet 49
44.0
49.5
4
3769 11.6
Model
Cyl’s cc’s
Fuel
Model
899
2.1
3
1124
11.2
4
12.3
13.0
BetaSet 14
14.0
BetaSet 17
Cyl’s cc’s
Fuel
The kVA outputs detailed are maximum rated outputs available for
an hour, continuous ratings are 90% of these figures. kW outputs are
80% of the kVA ratings; generators are 0.8 pf. For operation in a ship’s
engine room at 45°C ambient temperature a derate will apply of 8%.
*The BetaGen 4/2 and 6/2 are unity power factor machines.
60Hz versions are available, details on request.
Dimensions - Standard BetaSet
1,500 rev/min
3,000 rev/min
Length
Width
BetaSet 4/2
76
44
58
116
245
BetaSet 6/2
76
44
58
116
59
267
BetaSet 11/2
84
44
58
199
46
59
283
BetaSet 22/2
99
55
62
296
94
56
71
390
BetaSet 25/2
104
55
62
286
BetaSet 17
121
54
69
412
BetaSet 21
127
54
69
454
BetaSet 26
133
62
86
602
BetaSet 33
145
62
86
670
BetaSet 40
145
86
81
690
BetaSet 49
153
68
88
735
Model
Length
Width
Height Weight
BetaSet 7
88
43
59
237
BetaSet 10
88
43
59
BetaSet 11
97
46
BetaSet 12
97
BetaSet 14
Model
Height Weight
All dimensions are in centimetres and approximate, for approximate
shipping dimensions please add 30cms to Length, Width and Height.
Radiator cooling and special options
are available - details on request.
BetaGen “Super Silence” Marine Generating Sets
Our marine generating sets are manufactured with high
quality marine grade acoustic housings that reduce the
noise levels down to below 60dB(A). This is (at least) a
further 10dB(A) reduction from our already quiet gensets
- equivalent to about half the noise level as perceived by
the human ear.
Our BetaGen Marine Generating sets have been carefully
designed to have compact dimensions and low weight,
with all service connections brought to the outside of
the housing - ready for a quick and easy installation.
We also included in the design for ease of maintenance
with quick release panels, and special acoustic reduction
material with attenuated air-intake and exhaust
connections.
BetaGen - Specifications
Beta Marine - BetaGen Marine Generating Sets each having a Rated Output as detailed below, and operating; designed
as an acoustically housed generating set, built and tested by Beta Marine Limited, each comprising:
• Acoustic Canopy: a substantial, quality zintec/steel
canopy with a 35mm sound insulated lining and
removable panels for easy maintenance; the noise
level will be less than 58dB(A) when measured at 7
metres under “free field” conditions.
• Beta Marine water cooled ‘Kubota’ diesel engine,
naturally aspirated, rated at either 1500 or 3000 rev/
min for operation in accordance with ISO 3046.
• Heat exchanger cooling complete with cupronickel
tube stack and phosphor bronze end caps and anode;
with fresh water and sea water pumps.
• Water cooled exhaust manifold and water injection
exhaust bend.
• 12 volt electric start system and stop solenoid valve,
2 wire grounded system (insulated return is standard
on BetaSets 26, 33, 40 & 49).
• Combined start/stop, alarm and protection module
is supplied loose with 3 metres of connection cable.
Module includes: Starting and Stopping push buttons,
an hours run meter and indicators with shutdown on
fault of low lubricating oil pressure and high coolant
temperature.
• Speed governor to control engine speed to the
requirements of ISO 3046 for diesel generating sets.
• Engine fuel oil, lubricating oil and air filters.
• Engine mounted Sump drain pump.
• Marine rated generator operating at 0.8pf, and 50 Hz,
ventilated drip proof enclosure with IP 23 protection,
single bearing construction. The generator is self
regulating, self excited and is complete with terminal
box, and automatic voltage regulator.
• Engine and generator are close coupled together and
mounted on substantial steel feet with marine fail
safe anti-vibration mountings to isolate the set.
• Each generating set is “full load” tested in accordance
with our quality document QA023.
• 12 month warranty from date of commissioning or
18 months from date of despatch - which ever comes
first.
kVA rating - 1,500 rev/min - 50 Hz
kVA rating - 3,000 rev/min - 50 Hz
Single Phase
kVA Max.
3 Phase
kVA Max.
BetaSet 7
7.2
7.2
3
BetaSet 10
9.7
10.1
BetaSet 11
10.7
BetaSet 12
• Keel/box cooling versions are available and
alternative specifications and requirements can be
quoted on request.
Single Phase
kVA Max.
3 Phase
kVA Max.
BetaSet 4/2
4.0*
-
2
479
1.2
2.7
BetaSet 6/2
5.7*
7.7
2
479
2.1
1335
3.0
BetaSet 11/2
11.2
12.1
3
719
3.3
4
1498
3.5
BetaSet 22/2
22.0
23.1
4
1335
5.8
14.5
3
1647
4.3
BetaSet 25/2
24.8
25.9
4
1498
6.6
16.0
17.3
4
1857
4.8
BetaSet 21
19.8
21.1
4
2197
5.6
BetaSet 26
25.3
26.2
4
3318
6.2
BetaSet 33
32.0
33.5
4
3318
8.4
BetaSet 40
38.5
39.6
4
3769 10.7
BetaSet 49
44.0
49.5
4
3769 11.6
Model
Cyl’s cc’s
Fuel
Model
899
2.1
3
1124
11.2
4
12.3
13.0
BetaSet 14
14.0
BetaSet 17
Cyl’s cc’s
Fuel
The kVA outputs detailed are maximum rated outputs available for
an hour, continuous ratings are 90% of these figures. kW outputs are
80% of the kVA ratings; generators are 0.8 pf. For operation in a ship’s
engine room at 45°C ambient temperature a derate will apply of 8%.
*The BetaGen 4/2 and 6/2 are unity power factor machines.
60Hz versions are available, details on request.
Dimensions - Standard BetaGen
1,500 rev/min
Model
3,000 rev/min
Length
Width
Height Weight
BetaGen 7
96
54
67
290
BetaGen 10
96
54
67
BetaGen 11
105
56
BetaGen 12
105
BetaGen 14
Model
Length
Width
Height Weight
BetaGen 4/2
80
49
59
160
300
BetaGen 6/2
80
49
59
160
67
330
BetaGen 11/2
100
56
65
260
56
67
345
BetaGen 22/2
108
56
67
380
116
67
82
498
BetaGen 25/2
108
56
67
380
BetaGen 17
148
67
82
530
BetaGen 21
148
67
82
580
BetaGen 26
154
71
89
792
BetaGen 33
168
71
89
860
BetaGen 40
168
74
89
890
BetaGen 49
179
74
89
950
All dimensions are in centimetres and approximate, for approximate
shipping dimensions please add 30cms to Length, Width and Height.
Control Modules
110mm
110mm
110mm
110mm
Push Button Module
Push Button Module
Start/Stop
Our standard control module has 3 metres of cable for
installation with the generating set in the engine room.
Module includes: Starting and Stopping push buttons,
an hours run meter, and indicators with shutdown on
fault of low lubricating oil pressure and high coolant
temperature.
Automatic Battery Sensing
An automatic battery charging system that starts up
when the batteries reach a specific level of discharge.
We can add an override to stop the genset starting in the
middle of the night - if required.
Remote Control
A Control Module for installation in the wheelhouse
(where the starting and stopping of the generating set
cannot be heard). This includes the standard module in
the engine room for local control, plus a second module
in the wheel house enabling remote control of starting
and stopping.
Automatic Mains Failure
We can offer an ‘Automatic Mains Failure’ module for
times where you have unreliable shore power.
Automatic Paralleling & Load Sharing
Generally required for much larger installations, but if
required we can offer upon application and full details.
Mecc Alte Marine Alternators
Mecc Alte is a leading independent producer of
synchronous alternators, with proven expertise and
experience in design, research and development
capabilities dating back to 1947. Their Marine division
encompasses the company’s reputable high levels of
performance standards with innovative features.
All Mecc Alte Alternators supplied to Beta Marine
incorporate upgraded marinised features and are
supplied into both essential and non-essential duties,
including the BV & DNV batch type and line approval.
• DNV type approval, BV type approval, ABS, KR
and other design assessment.
• 12 wire re-connectable as standard.
• Exceptional excitation with the MAUX, 300% for
20 seconds.
• Simple design for ease of maintenance.
• IP23+ Marine cover on all machines.
• Grey EG43 marine impregnation.
• Digital AVR great voltage regulation +/-1.5%.
• 50 or 60Hz compatible.
How Much Power Do I Need?
These guidelines will hopefully assist you to calculate the
size of generating set you require, and therefore the cost
involved. More details are available on our website:
Marine Generating Sets > Guidelines & FAQ’s > How
Much Electricity Do I Need?
You will need enough electricity to power the electrical
equipment that you currently have on board - but
remember, you might also want to think about a little
more power you may need for additional items you
add over the next few years. Generally you will make
comparisons to a normal house with a standard 100 Amp
supply. In a normal house you can walk in the front door
and walk around switching on all the electrical items you
want, it will be almost impossible to use 23kW. However
there is no such standard with generating sets; you can
buy very small generating sets that have enough power
to drive a hair dryer on an intermittent basis, or larger
sets all the way up to power stations.
When calculating the size of your generating set on
your boat, your life style is an important consideration
- if you wish to be able to walk on board and
switch on everything at once then the calculation is
straightforward, just add up the maximum ratings on
the appliance labels/nameplates and you have the size
required. However; if you are able to change your life
style slightly and moderate/schedule your electrical
power requirements by considering and limiting which
appliance you are switching on and possibly using one
machine after the other (say the washing machine first,
then the tumble dryer) - then you can happily install a
considerably smaller generating set.
There are a few things that you will need to know:
• Electrical Power is measured in Watts. One thousand
watts 1000W = 1kW (kilowatt). An electric kettle is
about 2kW/2000 Watts. The measurement of Electric
power in watts combines the electrical current
measured in Amps multiplied by the electric flow in
Volts. 1 Watt = 1 Amp x 1 Volt. The mains voltage is
normally 230V (AC, single phase, 50 Hz) in the UK.
• All electrical equipment should have a label
somewhere on the item ‘the appliance makers’ label
that is generally hidden on the back or underneath,
and will include/detail all the information you
require. Normally included are the kW, or W, or
Amps, this figure should refer to the ‘Stated Load’
i.e. maximum possible load, with the electrical item
operating at maximum electrical consumption.
• Things can become more complicated with electric
motor starting for air conditioning systems; so if you
have air conditioning you need to send us full details
so we can help with the calculations.
On board your boat there are two sets of electrical
equipment to be considered:
1. 230V AC - The mains powered items similar to those
you would use on land where they are powered from
the domestic mains. This is 230 Volts AC (alternating
current, single phase, 50 Hz) supply.
2. 12V DC - The items that are powered from your
batteries. Usually 12 or 24 Volts DC.
All electrical items will have different sizes and ‘Stated
Loads’. Add your actual figures into the table below
to establish the maximum possible load. The next
column refers to the ‘considered’ load; this is a figure
in kW that you have calculated/guessed/considered
to be a reasonable figure to use for this calculation. A
‘multimeter’ that measures amps can be very useful
in understanding how many amps are being used and
when they are used during the cycle of the machine.
Appliance or Load - 230V AC
Usual Load (kW)
Electric Cooker
5.0 - 10.0 kW
Kettle
2.0 - 3.0 kW
Immersion Heater in Water Tank (Hot Water)
Stated Load (kW)
Considered Load
3.0 kW
Washing Machine
1.5 - 3.0 kW
Tumble Dryer
2.0 - 4.0 kW
Washer/Dryer
1.5 - 3.0 kW
Microwave
0.5 - 2.0 kW
Food Mixer
0.5 - 1.5 kW
Toaster
0.5 - 1.5 kW
Vacuum Cleaner/Hoover
0.5 - 1.5 kW
Coffee Machine
0.5 - 1.0 kW
Electric Drill
0.2 - 1.0 kW
Fridge
0.1 - 0.4 kW
Electric Blanket
0.05 - 0.2 kW
TV & Video/DVD Player
0.1 - 0.3 kW
Battery Charger/Inverter Charger
0.2 - 3.0 kW
Air Conditioning
2.0 - 20.0 kW
Other Additional Items
Additional 10% or 20% for the next 5 years?
Total Load
Generators Typically supplied by Beta Marine
Narrowboat: with 3kW washer/dryer, TV and video/dvd
player, 0.2kW DC fridge, 2kW kettle, wicrowave, shower
pump, inverter charger - we often supply a 3.5kW or
5kW Travel Power mounted on the propulsion engine. If
you have the space - maybe a small BetaGen.
Wide Beam & Dutch Barge: with small electric
cooker, 2kW washing machine, 3kW tumble dryer, 2kW
immersion heater, 0.5kW fridge/freezer plus TV and
video/dvd player, battery charger - such customers often
specify a 1500 rev/min BetaGen 7 or BetaGen 10.
Sailing Yacht 25 to 35 foot: with 0.2 kW DC fridge,
microwave, electrical navigation equipment, lighting,
water pumps, inverter charger - we would recommend
a suitable domestic battery bank and possibly a Travel
Power driven by the propulsion engine.
Sailing Yacht +60 foot: with 0.2 kW DC fridge, electrical
navigation equipment, lighting, water pumps, battery
charger (possibly air conditioning) - customers have
taken BetaGen 4/2 or BetaGen 7.
Power Boat 40 foot: with Air conditioning, small
electric cooker, 0.2 kW fridge, electrical navigation
equipment, lighting, water pumps, battery charger –
perhaps a BetaGen 10 or BetaGen 11.
You will probably also have 12 volt DC (direct
current) electrical loads. These are usually powered
from the domestic battery bank that is charged from
your generating set.
Prices and specifications are subject to amendment without notice.
Information given is subject to our current Conditions of Tender and Sale.
Approvals
Ref: 1760, June 2016
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The Ma
Beta Marine Limited, Davy Way, Waterwells, Quedgeley, Gloucester, GL2 2AD. UK
Web: www.betamarine.co.uk | Email: sales@betamarine.co.uk | Tel: +44 (0)1452 723492