Phasor K3-8.5kW Marine Diesel Generator – 1800 RPM, Standard Series
Low-speed 1800 RPM mechanical rotation anchors the Phasor K3-8.5kW Marine Generator, supplying 8.5kW of stable 120/240V electricity through a durable Kubota 3-cylinder diesel engine for bluewater cruising yacht security.
- 8.5kW output powers multiple cabin chillers
- 1800 RPM speed reduces internal wear
- Kubota diesel engine ensures fuel economy
- Brushless alternator eliminates maintenance carbon brushes
Description
Low-speed 1800 RPM mechanical rotation stabilizes the Phasor K3-8.5kW Marine Diesel Generator, delivering exceptional electrical longevity for commercial workboats and offshore cruising yachts. This heavy-duty generator supplies 8.5 kW continuous output and 10.0 kVA surge power at 120V and 240V 60Hz, running multi-stage air conditioning chillers, electric galley ranges, and hydraulic steering pumps.
Built around a heavy-duty three-cylinder Kubota diesel engine, the platform includes a freshwater-cooled exhaust manifold and cast-iron cylinder liners. The synchronous four-pole alternator features 100 percent copper windings dipped in Class H thermal varnish to resist moisture. Weighing 435 lbs dry, the generator mounts inside a footprint measuring 33.5 inches long by 20.5 inches wide by 24.0 inches high.
Key Features of Phasor K3-8.5kW
Commercial captains who buy Phasor K3-8.5kW marine diesel generator hardware gain proven commercial power equipment built for continuous oceanic service. Operating at 1800 RPM minimizes mechanical stress on engine rod bearings and piston skirts, delivering thousands of trouble-free running hours between major engine overhauls.
- 8.5 kW continuous electrical capacity powers multiple commercial kitchen appliances and central air chillers at once.
- 10.0 kVA surge rating starts large inductive watermaker pumps and hydraulic bow thrusters without breaker trips.
- Synchronous alternator design delivers steady 60 Hz electrical power across sudden electrical step-load additions.
- Complete freshwater cooling covers engine block and exhaust manifold, transferring heat out through raw-water exhausts.
- K3-8.5kW standard series frame features heavy rubber isolation mounts to prevent hull resonance.
- Four-pole brushless alternator eliminates slip rings and carbon brushes to minimize maintenance downtime.
- Cast-iron cylinder sleeves ensure long operational life and compression retention across extended voyages.
- Automated engine shutdown protections guard against cooling failure, high exhaust temperature, or low oil pressure.
Inductive Load Surge Acoustic Measurements
Producing 56 dB(A) at 23 feet when enclosed in a sound shield, this diesel unit operates without intruding into vessel living quarters. The solid-state automatic voltage regulator holds output voltage within 2 percent of 120V and 240V standards at 60 Hz. Sudden step-load applications from galley induction ranges are absorbed without frequency droop, consuming 0.58 GPH at 50 percent load.
Engine Bed Fitment Exhaust Plumbing
Install the generator on rigid structural stringers above bilge flood lines, leaving 12 inches of service clearance around capsule panels. Connect raw water supply through a dedicated 0.75-inch bronze seacock with an inline sea strainer. Grounding circuits link to vessel bonding buses through isolated ground returns to prevent galvanic zinc loss.
Marine Usability Scheduled Inspection Steps
Service technicians check fluids and filters through an unencumbered single-side maintenance layout. This generator is not engineered for land-based operations without cooling water, nor for direct electrical integration with uninsulated shore lines lacking marine galvanic isolation switches.
- Inspect sea strainer baskets and raw-water pump drive belts before each shift.
- Renew engine oil and replace primary fuel filters every 100 runtime hours.
- Inspect zinc anodes and check alternator insulation resistance every 250 runtime hours.
Warranty Statement Factory Packaging Details
Phasor backs this unit with a 2-Year limited warranty covering mechanical engine components, cooling heat exchangers, and electrical alternator stators. The delivery shipment contains the Phasor K3-8.5kW core, remote start panel, external fuel pump, oil drain system, anti-vibration mount set, and factory pre-delivery inspection documentation.
Phasor K3-8.5kW Marine Diesel Generator (Standard Series, 1800 RPM) Specs
| Brand / Manufacturer | Phasor Marine Power Systems |
| Full Model Code | K3-8.5 kW Standard Series Frame |
| Generator Type | Stationary Full-Frame Marine Diesel Generator Set |
| Prime Power Output | 8.5 kW (8,500 Continuous Watts) |
| AC Voltage & Frequency | 120V / 240V AC Single Phase @ 60 Hz |
| Amperage Output | 70.8A @ 120V / 35.4A @ 240V |
| Engine Architecture | Kubota D1105 Series Naturally Aspirated 3-Cylinder Marine Diesel Engine |
| Engine Operational Speed | Static 1,800 RPM (Low Mechanical Stress Design Configuration) |
| Cooling System Type | Closed-Loop Cupro-Nickel Heat Exchanger with Raw Water Auxiliary Pump Unit |
| Alternator Spec Core | Single Bearing Brushless Exciter Core featuring Solid-State Automatic Voltage Regulation (±1%) |
| Fuel System Layout | Bosch-Type Injection System paired with Mechanical Governor Control Architecture |
| Safety Management Systems | Automated Engine Safety Interruption Shield (High Temperature / Low Oil Pressure Overrides) |
| Chassis & Structural Mount | Rigid Welded Steel Mounting Rail Base with Multi-Point Heavy Elastomeric Isolation Mounts |
| Net Weight | Approx. 210.9 kg (465.0 lbs) Dry Base Weight Range |
| Dimensions L x W x H | 813 mm x 483 mm x 584 mm (32.0" x 19.0" x 23.0") |
| Ideal Application | Excellent full-size auxiliary unit for sportfishers and coastal cruiser setups demanding ample starting torque for deep-freeze refrigeration systems and marine HVAC packs. |













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