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Product Overview
The BetaSet / BetaGen 4/2 is a compact, two-cylinder marine generator delivering up to 4.5 kVA output. Based on a 479 cc Kubota diesel engine, this set is available in 50 Hz (230 V) or 60 Hz (120/240 V) configurations, running at either 3000 rpm or 3600 rpm. With options for heat exchanger, keel, or radiator cooling, it’s perfect for smaller vessels, inland crafts, or seagoing yachts under 19 kW engine power.
Key Features
- Max Output: 4.0–4.5 kVA depending on frequency
- Versatile Operation: 230 V 1ph @ 50 Hz | 120/240 V 1ph @ 60 Hz
- Kubota-Based Engine: 2‑cylinder, 479 cc diesel, naturally aspirated and mechanically governed
- Cooling Options: Heat exchanger, keel, or radiator cooled
- Low Fuel Consumption: Just 1.4–1.7 litres/hour
- Compact & Lightweight: Ideal for tight engine rooms and smaller craft
Technical Specifications
| Max. Output | 4.0 kVA (50 Hz), 4.5 kVA (60 Hz) |
|---|---|
| Typical Load Current | 17.4 A @ 230 V or 240 V 1ph |
| Engine | 2‑cylinder Kubota-based diesel, 479 cc, naturally aspirated |
| Speed | 3,000 rpm (50 Hz), 3,600 rpm (60 Hz) |
| Fuel Consumption | 1.4 L/hr (50 Hz), 1.7 L/hr (60 Hz) |
| Cooling Options | Heat exchanger, keel, or radiator cooled |
| Control Module | Loose, 3 m cable: start/stop, hour meter, low oil & high temp shutdown |
| Alternator | Mecc Alte, IP22, ventilated, unity power factor (kVA = kW), self-excited |
| Paint | Beta Red (heat exchanger) or Dark Brunswick Green (keel); enclosure: off-white |
Standard Equipment
- Heat exchanger with cupro-nickel tube bundle and bronze end caps
- Keel cooled with header tank and dry exhaust outlet
- Water cooled exhaust manifold, injection bend, flexible hoses
- 12 V electric start with 45 A charging alternator and stop solenoid
- CE-approved fuel supply & return lines
- Marine-rated alternator with AVR, IP22 protection
- Anti-vibration mounts for reduced noise and vibration
- Fully load tested and tri-wall packed on wooden base
Emissions & Compliance
- Below 19 kW: compliant for recreational and inland vessels, including Rhine (CCNR)
- Suitable for seagoing craft with valid maritime or safety certificate
- EPA-compliant options available upon request
- Output de-rated ~8% at 45 °C ambient temperature
Applications
- Small commercial or pleasure craft under 19 kW
- Inland canal boats and narrowboats
- Marine generator systems under 5 kVA
