Call Us on: +44 (0)1452 723492
Diesel Marine Propulsion Engines & Marine Generating Sets

Project Description


BetaSet Marine Generating Sets

Single and 3 Phase Beta Marine – BetaSet Standard Marine Generators.

Beta Marine has extensive 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.

The development of these generating sets has resulted in our standard range of marine generating sets based on Kubota diesel engines from 3.7kVA 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 1,800 and 3,600 rev/min.

Single and 3 Phase Marine Generating Sets. BetaSet – standard open type generator set. BetaGen – “Super Silence” with acoustic enclosure. Specifications as detailed in our current brochure.

kVA Maximum Output
1,500 rpm 0.8PF - 1 Phase
kVA Maximum Output
1,500 rpm 0.8PF - 3 Phase
Engine ModelBetaSet Model'Super Silence'
BetaGen Model
7.27.2BD905BetaSet 7BetaGen 7
9.710.1BD1105BetaSet 10BetaGen 10
10.711.2BV1305BetaSet 11BetaGen 11
12.313.0BV1505BetaSet 12BetaGen 12
14.014.5BV1703BetaSet 14BetaGen 14
16.017.3BV1903BetaSet 17BetaGen 17
19.821.1BV2203BetaSet 21BetaGen 21
25.326.2BV3300BetaSet 26BetaGen 26
32.033.5BV3300BetaSet 33BetaGen 33
38.539.6BV3800BetaSet 40BetaGen 40
44.049.5BV3800BetaSet 49BetaGen 49
kVA Maximum Output
3,000 rpm - 1 Phase
kVA Maximum Output
3,000 rpm 0.8PF - 3 Phase
Engine ModelBetaSet Model'Super Silence'
BetaGen Model
4.0-BZ482BetaSet 4/2BetaGen 4/2
5.7-BZ482BetaSet 6/2BetaGen 6/2
-7.7BZ482BetaSet 6/2BetaGen 6/2
11.212.1BD722BetaSet 11/2BetaGen 11/2
22.023.1BV1305BetaSet 22/2BetaGen 22/2
24.825.9BV1505BetaSet 25/2BetaGen 25/2

BetaSet Specifications

Having a maximum rated output as detailed; designed, built and tested by Beta Marine Limited, each comprising:

  • Powered by a Beta Marine water cooled ‘Kubota’ marine specification heat exchanger cooled auxiliary diesel engine naturally aspirated and rated at either 1,500 rev/min for low speed versions or 3,000 rev/min for high speed versions and operation in accordance with ISO 3046.
  • Heat exchanger cooling complete with cupro-nickel tube bundle and phosphor bronze end caps and anode, with fresh and sea water pumps.
  • Water cooled exhaust manifold and water injection exhaust bend.
  • 12 volt electric start system with battery charging alternator and stop solenoid valve, 2 wire grounded system except on BetaSet/BetaGen 26, 33, 40 and 49 where insulated system is standard.
  • 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. On insulated system push buttons are replaced with a key switch and separate hour counter is supplied.
  • Speed governor to control engine speed to the requirements of ISO 3046 for diesel generating set.
  • Beta Marine standard fuel oil, lubricating oil and combustion air filters. Engine mounted sump drain pump.
  • Mecc Alte alternator marine rated to ISO standard, brushless, self-ventilated with IP 22 protection, single bearing construction. The generator is self-regulating and self-excited and is complete with terminal box and automatic voltage regulator, fully suitable for use in marine engine room environments of up to 45°C.
  • Engine and generator are close coupled together and mounted on substantial steel feet with marine failsafe anti-vibration mountings to isolate the set from the ships seating.
  • Paint: The generating set is painted Beta Red for heat exchanger and the acoustic enclosures are off-white.
  • Each generating set is “full load” tested in accordance with our quality document QA023.
  • Warranty: 12 months from date of commissioning or 18 months from date of despatch – whichever comes first.
  • Keel/box cooling versions are available and alternative specifications and requirements can be quoted on request. Keel cooled engines are painted Dark Brunswick Green as standard.

BetaGen ‘Super Silence’ Specifications

The specification is basically the same as the BetaSet generating set but fitted with an acoustic enclosure: Our BetaGen marine generating sets are manufactured with high quality marine grade acoustic housings with zintec/steel, a 40mm sound insulated lining and removable panels for easy maintenance; the noise level will be less than 60dB(A) when measured at 7 metres under “free field” conditions. 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.

Please also refer to our sales brochure “Marine Generating Sets 3 to 50kVA” ref: 1760.

  • Steel base frame, not normally required with acoustic housing.
  • Water inlet kit including seacock and pipe.
  • Wet exhaust silencer 50mm & 3 metre hose kit.
  • Wet exhaust silencer 60mm & 3 metre hose kit (BetaSet/BetaGen 26, 33, 40 and 49).
  • Dry exhaust outlet including exhaust elbow and flexible stainless steel bellows section in lieu of water injection bend:
    • Dry type exhaust silencer, BSP threaded tails.
    • Dry type exhaust silencer, BSP threaded tails (BetaSet/BetaGen 26, 33, 40 and 49).
  • 12 Volt starter battery 120Ah and 1 metre battery leads (up to BetaSet/BetaGen 33).
  • 12 Volt starter battery 180Ah and 1 metre battery leads for BetaSet/BetaGen 40 & 49.
  • Insulated battery charging alternator and fully insulated return DC electrics. (Included as standard on BetaSet/BetaGen 26, 33, 40, & 49 see note a). Not available on BetaSet/BetaGen 4/2 & 6/2.
  • Remote control: “RSM” push button start module and hour meter supplied for local installation and “LPM” push button start module supplied for remote installation, (in lieu of standard start modules) with module for speed sensing installed in generator terminal box and pre-wired by Beta Marine Ltd.
  • Extension cable, either for start module or between remote modules, per metre.
  • 3 Metres of flexible ducting for cooling air outlet x 125mm diameter.
  • Alternator drive belt guard (front end).
  • Double walled (sheathed) fuel injection pipes.
  • Flexible fuel hoses, flame retardant type with class ‘type’ approved material.
  • Packing Case for BetaSet models (already included with BetaGen models).
  • Please note that on the BetaSet/BetaGen 26, 33, 40 & 49 are supplied with insulated electrics, the control module has key start/stop and a mandatory hour meter is also supplied loose, except remote control option.
  • Keel/box cooled versions are available at the same prices as indicated above.
    For operation in Ship’s engine room at 45°C the outputs should be de-rated – see brochure.
  • The BetaSet and BetaGen 4/2 and 6/2 single phase versions are unity power factor machines.
  • 60Hz versions are available, ratings and prices will be provided on request.
    We reserve the right to change specifications without notice. All goods are offered and supplied in accordance with our current “General Terms of Tender and Sale”.
Back to Top
beta marine