Phasor KK4-30.0 – 30kW Keel Cooled Diesel Generator 60Hz

The Phasor KK4-30.0 is a high-output keel-cooled marine diesel generator for vessels requiring 30 kW of 120/240V single-phase 60Hz AC power. It uses a Kubota V3300-E4BG four-cylinder diesel engine operating at 1,800 RPM with a direct-coupled brushless generator and solid-state voltage regulation. The standard open-frame unit is intended for commercial and larger recreational vessels equipped with a correctly engineered keel-cooling, grid-cooling, or skin-cooling circuit.

The generator uses an engine-driven circulation pump for closed-loop cooling and must be connected to a cooling system capable of dissipating the complete engine and generator heat load. It includes a deluxe remote gauge panel with engine monitoring and automatic protection for low oil pressure, high coolant temperature, and overspeed. An optional sound enclosure may be available for installations requiring additional sound attenuation.

Key Specifications

- Commercial-grade keel-cooled marine diesel generator for 120/240V single-phase 60Hz AC systems.
- Provides 30 kW continuous output at 1,800 RPM.
- Uses a Kubota V3300-E4BG four-cylinder diesel engine with approximately 3,318 cc displacement.
- Provides 120/240V output with approximately 250A at 120V or 125A at 240V.
- Uses a direct-coupled brushless generator with solid-state voltage regulation.
- Requires a closed-loop keel-cooling, grid-cooling, or skin-cooling circuit.
- Fuel consumption is listed at approximately 2.4 US gallons per hour, or 9.0 L per hour, at full load.
- Open-frame generator measures approximately 1,320 mm by 610 mm by 736 mm and weighs approximately 521 kg.

Electrical Compatibility

This generator is intended for 120/240V single-phase 60Hz electrical systems. Confirm continuous load, simultaneous demand, power factor, largest motor-starting surge, distribution arrangement, and future electrical expansion before selecting a 30 kW genset. If a three-phase output is required, verify the exact optional alternator configuration and phase voltage before ordering.

Do not size this generator from nominal appliance ratings alone. Include HVAC, battery chargers, refrigeration, watermakers, pumps, galley equipment, motor loads, and other inductive appliances in the electrical load calculation.

Installation Considerations

Mount the generator on a rigid vibration-isolated foundation designed for approximately 521 kg, with service access for filters, oil, coolant, electrical terminals, exhaust, and optional sound enclosure. Connect the closed cooling system to a correctly specified keel cooler, grid cooler, or skin cooler, then verify coolant flow, hose routing, air bleeding, and heat-rejection capacity. Install diesel fuel feed and return, exhaust, ventilation, starting battery, AC distribution, grounding, circuit protection, and shore-power transfer isolation. Installation and commissioning should be completed by a qualified marine generator technician.

Before Ordering

Confirm required continuous and surge load within 30 kW, 120/240V single-phase 60Hz compatibility, exact phase requirement, adequate keel-, grid-, or skin-cooling capacity, available installation space, structural support for approximately 521 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.