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Product Overview
The BetaSet / BetaGen 49/4 is a high-performance 4‑pole marine generator offering continuous output from 40 to 52 kVA, depending on frequency and phase configuration. Powered by a 3,769 cc Kubota-based diesel engine with electronic governor, this model is offered with heat exchanger, keel, or radiator cooling—suited for a broad range of maritime applications.
Key Features
- Max Output: 40.0 kVA (50 Hz 1 ph), 45.0 kVA (50 Hz 3 ph), 46.0 kVA (60 Hz 1 ph), 52.0 kVA (60 Hz 3 ph)
- Flexible Operation: 230 V 1ph or 400 V 3ph @ 1500 rpm (50 Hz) | 127/254 V 1ph or 440 V 3ph @ 1800 rpm (60 Hz)
- Kubota-Based Engine: 4‑cylinder, 3,769 cc diesel, naturally aspirated and electronically governed for precision performance
- Cooling Flexibility: Heat exchanger, keel, or optional radiator cooling to suit vessel design
- Reliable Alternator: Mecc Alte marine-rated unit, self-excited, ventilated IP22 enclosure, 0.8 pf
- Unregulated Use: Stage II emissions only—unsuitable for CCNR waterways, but fully permitted in unregulated marine regions
Technical Specifications
| Max. Output | 40.0 kVA (1 ph 50 Hz), 45.0 kVA (3 ph 50 Hz), 46.0 kVA (1 ph 60 Hz), 52.0 kVA (3 ph 60 Hz) |
|---|---|
| Typical Load Current | 139 A* @230 V 1ph, 50.1 A** @400 V 3ph, 145 A*** @127/240 V 1ph, 54.6 A**** @440 V 3ph |
| Cylinders | 4 |
| Cubic Capacity | 3,769 cc |
| Fuel Consumption | 9.2 L/hr (50 Hz), 10.5–10.6 L/hr (60 Hz) |
| Cooling Options | Heat exchanger, keel, or radiator cooled |
| Governance | Electronic governor (ISO 3046 compliant) |
| Alternator | Mecc Alte self-excited, ventilated, IP22, 0.8 pf |
| Paint Finish | Beta Red (heat exchanger) or Dark Brunswick Green (keel), enclosure off-white |
Standard Equipment of BetaSet 49/4
- Heat exchanger with cupro-nickel tube bundle and phosphor bronze end caps
- Keel cooling system with header tank and dry exhaust outlet
- Water-cooled exhaust manifold and injection exhaust bend
- 12 V electric start with 70 A insulated return alternator and stop solenoid valve
- 3 m loose PSM/EPM control module: start/stop, hour counter, fault shutdown
- Mecc Alte marine alternator: 0.8 pf, ventilated, IP22 enclosure with AVR
- Close-coupled engine & generator on anti-vibration mounts
- Full-load tested and tri-wall packed on wooden base; QA023 certified
Emissions & Compliance
- Only Stage II compliant—unsuitable for CCNR-regulated inland waterways (e.g., Rhine)
- Suitable for worldwide unregulated marine applications
- E-version Stage IIIA available (BetaSet 49T IIIA) for CCNR-compliant vessels under 20 m
- Engine output de-rated by ~8% at ambient temperature above 45 °C
Applications
- Commercial & leisure vessels requiring 40–52 kVA of continuous power
- Yachts, fishing boats, tugs, and workboats in unregulated territories
- Marine installations where large generator capacity is needed
