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Cummins Marine QD 7.5 (60 Hz) Generator

Cummins Marine QD 7.5 (60 Hz) Generator Marine generator set Quiet DieselTM Series 6/7.5 QD Model MDKBJ Features and benefits • Rugged dependability high quality and innovation make Cummins Onan Marine Generators the leader in marine generator design and development providing Performance you rely on.™ • The digital QD (Quiet Diesel) Series models are the first marine generator sets with self-monitoring capability and network communication. • The optional Cummins Onan Digital Display provides user-friendly self-diagnostic features and text display including extensive engine and alternator information. • Cummins Onan Marine Generators with advanced design and development processes use technology to lower sound and vibration. Our sound shields minimize noise and deliver better sound quality. The optimized mounting system greatly reduces vibration. • Certified to U.S. Environmental Protection Agency (EPA) emission standards. • Cummins Onan Marine Generators have the largest worldwide certified distributor/dealer support network in the industry with more than 70 years of marine experience. Models and ratings Model kW/kVA Voltage Amps Phase Hz Engine RPM 6.0MDKBJ 6.0/6.0 110/220 54.5/27.3 1 50 Hz 2400 115/230 52.2/26.1 1 50 Hz 2400 120/240 50.0/25.0 1 50 Hz 2400 7.5MDKBJ 7.5/7.5 120 62.5 1 60 Hz 2900 120/240 62.5/31.3 1 60 Hz 2900 Single phase output at 1.0 power factor. Other single phase configurations are available contact your distributor/dealer for more information. Rating conditions are 100 kPa (29.6 in Hg) barometric pressure 30% relative humidity and 25° C (77° F) (ref. ISO 3046). Sound level weight and size Sound level Dimensions 50 Hz configuration 60 Hz configuration Weight (dry) Length Width Height 69 dB(A)* 71 dB(A)* 195 kg (429 lb) 664 mm (26.1 in) 583 mm (22.9 in) 535 mm (21.1 in) * Full load at 1 m ©2009 Cummins Power Generation. All Rights Reserved.Cummins Onan the inC in logo Performance you rely on.™ and Quiet DieselTM are servicemarks trademarks and/or registered trademarks of Cummins Inc. Specifications are subject to change without notice. A-1556 (10/09) Standard features • Advanced digital electronic control providing extensive diagnostic capability • Shutdown with diagnostic indicator light for: high engine coolant temperature high exhaust temperature low oil pressure over speed/voltage starter overcrank no raw water flow additional customer input and many more • Start-run-stop switch with glow plug preheat and fuel pump priming modes for easy starting; run light and diagnostic indicator light • Start function has automatic glow plug preheat for cleaner starting • Engine starter with automatic start disconnect • Electronic governor allows the generator set to maintain isochronous frequency control and close voltage regulation to provide quality power for digital appliances and computers • Switchable between 50/60 Hz • Front panel oil fill and level check • Single phase AC alternator with single or dual voltages • Digital voltage regulator integral with control • 12 V DC electric system with battery charging negative ground and DC protective circuit breakers • Electric fuel transfer pump for priming and lift capability • Freshwater cooling system with heat exchanger expansion tank and coolant recovery system • Water cooled exhaust mixing elbow • AC mainline circuit breaker • Running time meter • Air intake silencer • Mounting systems with vibration isolators • Full flow lube oil filter • Oil drain and hose extension • Electric fuel shut-off via electronic governing actuator • Fuel filter/water separator • Drip pan base capable of containing all generator set fluids • External mount tabs allow flexible mounting arrangement • Bulk head type connections for ease of installation include fuel in fuel out battery raw water inlet wet exhaust and generator set ground (vessel bond) • Integral enclosure for environmental protection from noise salt water and moving parts • Plug-in watertight connector for optional remote control • Closed crankcase breather re-circulation to eliminate engine room contamination • Coolant overflow bottle for easy coolant level maintenance • Fire extinguisher access port • Factory load tested • Five year limited warranty Engine details Design: 4-cycle water-cooled diesel Cylinders: 3 Bore: 67 mm (2.64 in) Stroke: 68 mm (2.68 in) Displacement: 719 cm3 (43.88 in3) Compression ratio: 23.5:1 Max fuel lift: 1.22 m (4 ft) Lube oil capacity: 3 L (3.2 qt) Coolant capacity: 3.1 L (3.3 qt) Coolant flow rate: 50 Hz: 35 L/min (9.2 Gal/min) 60 Hz: 29 L/min (7.7 Gal/min) Raw water flow rate: 50 Hz: 15 L/min (4 Gal/min) 60 Hz: 19 L/min (5 Gal/min) Starting system: 12 V Power (max): SAEJ1349 50 Hz at 2400 RPM 10.5 kW 60 Hz at 2900 RPM 11.3 kW Fuel injection pump: Bosch MD type Combustion Chamber: Spherical Max Raw Water Lift: 1.22 m (4 ft) Typical fuel consumption No. 2 diesel fuel L/hr (Gal/hr) 1/4 load 1/2 load 3/4 load Full load 6.0 MDKBJ-50 Hz 1.12 (0.30) 1.46 (0.39) 1.84 (0.48) 2.28 (0.6) 7.5 MDKBJ-60 Hz 1.40 (0.37) 1.84 (0.48) 2.33 (0.61) 2.93 (0.7) Alternator details Generator set performance Design: Cummins Onan revolving field 2-pole drip-proof construction with encapsulated rectifiers Voltage Regulator: Integral with digital-control Stator: Skewed stator and 2/3 pitch windings minimize field heating and voltage harmonics; resin-coated for corrosion protection Rotor: Dynamically balanced assembly; supported by pre-lubricated maintenance-free ball bearings Cooling: Rotor mounted centrifugal blower Insulation system: Class H per NEMA MG1-1 -1.65 and BS 5000 Operating environment: Generator sets are durability tested at maximum ambient air temperature: 50° C (122° F) and raw water temperature: 37.8° C (100° F) Frequency regulation: Isochronous Random frequency variation: Will not exceed +/-0.5% of its mean value for constant loads from no load to full load Voltage regulation: No load to rated load +/-1.5% ©2009 Cummins Power Generation. All Rights Reserved.Cummins Onan the inC in logo Performance you rely on.™ and Quiet DieselTM are servicemarks trademarks and/or registered trademarks of Cummins Inc. Specifications are subject to change without notice. A-1556 (10/09) Cummins Onan Digital Display Cummins Onan Cruise Kit
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Manufacturer: Cummins
MPN: 7.5MDKBJ-1101A
Stock On-Hand: 100
Box Qty: EA

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