Phasor KK4-21.0 – 21kW Keel Cooled Diesel Generator 60Hz
High-tonnage commercial fishing vessels draw heavy auxiliary power from a Phasor KK4-21.0 diesel generator, which burns 6.4 L/h across a 2434cc 4-cylinder Kubota engine, producing 21.0 kW via keel-cooled circulation at 900 lbs.
- 21.0 kW continuous power runs commercial freezing systems
- Keel cooling design eliminates raw-water strainer cleaning
- Four-cylinder Kubota block provides low-vibration generation
- Optional 120/208V 3-phase wiring powers heavy motors
- 1800-RPM speed maximizes long-term engine durability
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The Phasor KK4-21.0 is a high-output keel-cooled marine diesel generator for vessels requiring 21 kW of 120/240V single-phase 60Hz AC power. It uses a Kubota V2403-M-E4BG four-cylinder diesel engine operating at 1,800 RPM and a direct-coupled brushless generator with solid-state voltage regulation. The open-frame model is designed for vessels using a closed-loop keel-cooling, grid-cooling, or skin-cooling system rather than a conventional raw-water heat exchanger.
The generator uses an engine-driven coolant circulation pump and must be connected to a cooling circuit designed for its heat-rejection requirement. It includes a remote instrument panel with oil-pressure, coolant-temperature, voltage, and hour-meter gauges, plus automatic low-oil-pressure and high-coolant-temperature shutdown. An optional sound enclosure may be selected separately for installations requiring lower measured sound output.
Before Ordering
Confirm required continuous and surge load within 21 kW, 120/240V single-phase 60Hz compatibility, exact phase requirement, adequate keel-, grid-, or skin-cooling circuit, available installation space, structural support for approximately 408 kg, sound-enclosure requirement, diesel fuel layout, exhaust route, ventilation, starting-battery circuit, AC distribution and transfer-switch design, grounding plan, service access, and qualified installation requirements before purchase.
Product Specifications
Phasor KK4-21.0 - 21kW Keel Cooled Diesel Generator 60Hz
| Brand | Phasor Marine |
|---|---|
| Full Model SKU / Code | KK4-21.0 |
| Generator Type | Heavy-Duty Commercial/Pleasure Craft Keel-Cooled Marine Diesel Generator |
| Continuous Power Output | 21.0 kW / 21.0 kVA |
| Voltage Output | 120 V / 240 V (Single Phase) / 120/208V 3-Phase Optional |
| Frequency Output | 60 Hz |
| Engine Operating Speed | 1800 RPM |
| Engine Manufacturer & Model | Kubota V2403-M Diesel Engine |
| Number of Cylinders | 4 Cylinders |
| Displacement | 2434 cc |
| Cooling System Type | Keel Cooling Closed Loop Circuit (Grid Cooled / Skin Cooled Compatible) |
| Cooling Pump Type | Engine-Driven Heavy Duty Gear-Driven Circulation Water Pump |
| Fuel Type | Marine Diesel |
| Fuel Consumption (Average) | 1.7 gal/h (6.4 L/h) @ 100% load |
| Sound Insulation Enclosure | Open Frame (Optional Sound Attenuation Housing Available) |
| Noise Level | 66 dB(A) @ 1m (Open Frame) / 57 dB(A) @ 1m (With Sound Enclosure) |
| Dimensions (L x W x H) | 1168 x 584 x 686 mm (46.0 x 23.0 x 27.0 in) |
| Dry Weight | 408 kg (900 lbs) |
| Control Panel | Remote Instrument Panel with Gauges (Oil Pressure, Water Temp, Voltmeter, Hour Meter) |
| Safety Protection Systems | Automatic Low Oil Pressure & High Coolant Temperature Shutdown |
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