Kubota SEP-8.5 8.5kW 60Hz Radiator Cooled Diesel Gen

Description

The SEP-8.5 is a radiator-cooled diesel generator for applications requiring 8.5 kW of 120/240V single-phase 60Hz AC power. It uses a Kubota D1105-E4BG three-cylinder diesel engine at 1,800 RPM and a brushless synchronous alternator. The generator is supplied as an open-frame unit with an integrated radiator, fan, and closed-loop antifreeze cooling system rather than a raw-water heat exchanger or keel-cooling arrangement.

The open-frame generator requires an installation area with enough airflow to remove radiator and combustion heat. It provides 120/240V output at approximately 70A or 35A, includes a remote shutdown panel, and uses automatic safety relays for low oil pressure and high temperature. Confirm that the vessel has a suitable dry machinery space and ventilation design before selecting a radiator-cooled generator.

Key Specifications

• Radiator-cooled open-frame diesel generator for 120/240V single-phase 60Hz AC systems.
• Provides 8.5 kW continuous electrical output at 1,800 RPM.
• Uses a Kubota D1105-E4BG three-cylinder diesel engine with 68.53 cubic inches, or approximately 1,123 cc, displacement.
• Provides approximately 70A at 120V or 35A at 240V.
• Uses a brushless synchronous alternator with Class H insulation.
• Uses integral radiator cooling and an engine-driven fan with a closed-loop antifreeze coolant circuit.
• Fuel use is listed at approximately 0.77 US gallons per hour, or 2.9 L per hour, at full load.
• Base-unit dimensions are approximately 1,016 mm by 508 mm by 737 mm, with a listed weight of approximately 250 kg.

Electrical Compatibility

This generator is intended for 120/240V single-phase 60Hz systems. Confirm continuous demand, simultaneous loads, power factor, and the largest motor-starting surge before selection. Include air conditioning, refrigeration, pumps, watermakers, battery chargers, galley loads, and other inductive consumers in the electrical-load calculation.

It is not a direct replacement for a raw-water-cooled, heat-exchanger, or keel-cooled generator unless the vessel installation is redesigned around radiator airflow, hot-air discharge, exhaust routing, and machinery-space heat management.

Installation Considerations

Mount the generator on a rigid vibration-isolated foundation with service clearance for the radiator, fan, coolant, oil, filters, electrical terminals, fuel system, and exhaust. Provide ducted or otherwise sufficient ventilation to remove radiator heat, diesel fuel feed and return, a suitable exhaust system, starting battery, AC distribution, grounding, circuit protection, and a shore-power transfer switch or interlock. Installation and commissioning should be completed by a qualified marine generator technician.

Before Ordering

Confirm continuous and surge electrical demand within 8.5 kW, 120/240V single-phase 60Hz compatibility, available 1,016 mm by 508 mm by 737 mm installation space, structural support for approximately 250 kg, radiator ventilation and hot-air discharge requirements, diesel fuel layout, exhaust route, start-battery circuit, AC distribution and transfer-switch design, grounding plan, service access, and qualified installation requirements before purchase.