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Cummins Marine
Onan Marine QD 7/9 kW

Onan Marine QD 7/9 kW

Product catalog summary

Product Overview: The Onan Marine QD 7/9 kW generator is designed for marine applications, offering reliable power with dimensions of 911 mm in length, 566 mm in width, and 593 mm in height when housed. The weight varies between 252 kg and 272 kg depending on the configuration.

Power Ratings: The generator is available in two models: MDKDL 7 kW for 50 Hz and MDKDL 9 kW for 60 Hz. It features single-phase output with a power factor of 1.0 and three-phase output at 0.8 power factor. Fuel consumption ranges from 1.1 L/hr at 1/4 load to 3.8 L/hr at full load, with the 9 kW model meeting EPA Tier 3 emissions standards.

Engine Details: The generator is powered by a 3-cylinder, 4-cycle, IDI water-cooled Kubota diesel engine with a displacement of 1123 cm3. It includes an electric fuel transfer pump and a freshwater cooling system with a heat exchanger.

Alternator Details: The Onan alternator is brushless with a 4-pole design, featuring a solid-state voltage regulator and a brushless exciter system. It is designed for durability with corrosion protection and maintenance-free ball bearings.

Performance: The generator offers isochronous frequency regulation with a random frequency variation of +/-0.5% and voltage regulation of +/-1.5% from no load to rated load. An optional SAE J-1939 CAN data link is available for monitoring.

Standards and Testing: The generator set complies with NMMA and ABYC standards and is manufactured in ISO 9001 certified facilities. It has Lloyd’s Register Type Approval for marine applications.

Warranty Policy: Cummins provides a limited warranty covering most components for the first two years, with parts and labor coverage for major components extending to five years. An optional extended warranty is available.

Catalog excerpts

Fuel Consumption (L/hr (gal/hr) Emissions 1/4 1/2 3/4 Full Load Load Load Load Dimensions and weight may vary based on selected configuration. Power Ratings Model kWe kVa* Speed Phase Voltage Amps Hz RPM KC- and HX-Cooled Ratings Ratings below 130 kW are not subject to IMO emission regulations. * Single phase output at 1.0 power output; three phase output at .8 power factor

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Insulation System – Class H per NEMA MG1-1-1.65 Design – 3-cylinder, 4-cycle, IDI water-cooled Kubota Fuel System – Electric fuel transfer pump for priming and lift capability. Max fuel lift of 1.22 m (4 ft) Frequency Regulation – Isochronous Cooling System – Freshwater cooling system with Random Frequency Variation – Will not exceed heat exchanger, expansion tank and coolant recovery +/-0.5% of its mean value for constant loads from no system. Coolant overflow bottle to easily maintain load to full load coolant level. Coolant capacity of 4 L (4.2 qt). Coolant Voltage Regulation – No load to...

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Onan Marine QD 7/9 kW

Onan Marine QD 7/9 kW

Catalog excerpts

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