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Product Overview
The BetaSet / BetaGen 33/4 is a robust 4‑pole marine generator set offering continuous power from 29 kVA (50 Hz) to 39.6 kVA (60 Hz). Powered by a 4‑cylinder Kubota-based diesel engine (≈3,318 cc), it is mechanically governed and available with heat exchanger, keel or radiator cooling. CCNR Stage IIIA compliant, ideal for vessels under 20 m.
Key Features
- Rated Output: Up to 29 kVA at 50 Hz or 39.6 kVA at 60 Hz
- Flexible Operation: 230 V single phase or 400 V three phase @ 1,500 rpm (50 Hz); 120/240 V 1ph or 208/440 V 3ph @ 1,800 rpm (60 Hz)
- Engine: 4‑cylinder, 3,318 cc Kubota-based diesel, naturally aspirated & mechanically governed
- Cooling Options: Heat exchanger, keel cooled or radiator cooled
- Alternator: Mecc Alte marine-rated, ventilated, IP22 enclosure, 0.8 pf self-excited with AVR
- CCNR-Compliant: Stage IIIA emissions approved for inland waterways (e.g., Rhine) on vessels under 20 m
Technical Specifications
| Max. Output | 29.0 kVA (1 ph 50 Hz), 33.5 kVA (3 ph 50 Hz), 39.6 kVA (1 ph 60 Hz), 39.6 kVA (3 ph 60 Hz) |
|---|---|
| Typical Load Current | 101 A* @ 230 V 1ph, 34 A** @ 400 V 3ph, 240 A*** @120 V 1ph, 81 A**** @ 208 V 3ph |
| Cylinders | 4 |
| Cubic Capacity | 3,318 cc |
| Fuel Consumption | ≈7.8 L/hr (50 Hz), 9.5–9.7 L/hr (60 Hz) |
| Cooling Options | Heat exchanger, keel or radiator cooled |
| Governor | Mechanical (ISO 3046 compliant) |
| Alternator | Mecc Alte, IP22, self-excited with AVR |
| Paint Finish | Beta Red (HE), Dark Brunswick Green (keel cooled) |
Standard Equipment
- Cupro‑nickel heat exchanger with bronze end caps and sacrificial anode
- Keel cooling header tank & dry exhaust outlet option
- Water-cooled exhaust manifold and injection bend
- 12 V electric start system with 70 A insulated-return alternator
- Combined control module (start/stop, hour meter, fault shutdown) with 3 m cable
- Mecc Alte alternator: 0.8 pf, ventilated, IP22 enclosure
- Close-coupled engine & alternator, marine anti-vibration mounts
- Factory full-load tested, QA023 certified; shipped tri-wall packed
- Insulated electrics standard for model 33/4 and above
Emissions & Compliance
- Stage IIIA compliant — suitable for CCNR-regulated inland waterways
- Installed on vessels up to 20 m or 100 m³ displacement (excluding Lake Constance due to BSO)
- EPA-compliant versions available on request
- Rated output de-rated by approx. 8% at ambient temperatures above 45 °C
Applications
- Canal boats, yachts, barges, tugs under 20 m
- Commercial & leisure vessels operating in EU inland waterways
- Marine power systems requiring up to ≈40 kVA with low emissions
