Details
4BTA3.9-G11-70kw
Original Cummins, new machines at absolute wholesale prices.
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Our partner Cummins, a global power solutions leader, comprises five business segments – Components, Engine, Distribution, Power Systems and Accelera by Cummins – supported by Cummins global manufacturing and extensive service and support network, skilled workforce and vast technological expertise. In 1981, Chongqing Engine Plant started to license-produce Cummins engines, and in 1995, it jointly established a Chinese joint venture engine factory with Cummins.
4BTA3.9-G11-70kw is the generator used as a backup or safety equipment in the absence of mains power or in the event of a power failure and/or blackout.
Technical Specifications
General Engine Data
Engine Model: Cummins 4BTA3.9-G11-70kw
Type: 4 Cylinders in Line, 4 Stroke Diesel
Displacement: 3.9 L
Bore * Stroke: 102 * 120
Net Weight: 350 Kg
Overall Dimension: 867mm*544mm*988mm
Key Performance Date
Rated Power/Standby Power(1500 rpm): 70 kW/93 HP, 80 kW/107 HP
Rated Power/Standby Power(1800 rpm): 80 kW/107 HP, 90 kW/120 HP
Rated Speed: 1500/1800 rpm
Low Idle Speed: 950-1050 rpm
Fuel Consumption @ Running: ≤ 244 g/kW.hr
More Technical Data
Aspiration: Turbocharged/Aftercooled
Fuel System: BYC A Pump/GAC Governor
Electrical System (Starter Motor/Alternator): 12V/24V
Lowest Starting Temp Without auxiliary system: -12℃
Cooling Method: Water cooled
Engine Cooling Fluid Volume: 8.3 L
Governor Type: Electronic, Regulation ≤5%
Cummins B3.9-G Series
Cummins B3.9-G Series, original products from Dongfeng Cummins Engine Plant (DCEC), Cummins Joint Venture Plant since 1986, 50% shareholding by Cummins USA. This series mainly includes 4B3.9-G1-24kw, 4B3.9-G2-24kw, 4BT3.9-G1-36kw, 4BT3.9-G2-36kw, 4BTA3.9-G2-50kw, 4BTA3.9-G2-58kw, 4BTA3.9-G11-70kw.In accordance with the criteria of Machinery Safety Directive 2006/42, movable elements such as distribution belts, fans, and parts that acquire high temperatures during operation, such as exhaust manifolds, have their respective safeguards. Before being delivered, the generator is thoroughly checked at the factory. Voltage, frequency, and load are all tested, as well as the appropriate operation of warnings and the influence of engine oil temperature on stop.
Cummins® heavy-duty engine
Rugged 4-cycle, industrial diesel delivers reliable power, low emissions and fast response to load changes.
Alternator
Several alternator sizes offer selectable motor starting capability with low reactance 2/3 pitch windings, low waveform distortion with non-linear loads and fault clearing short-circuit capability.
Control system
The PowerCommand® electronic control is standard equipment and provides total genset system integration including automatic remote starting/stopping, precise frequency and voltage regulation, alarm and status message display, AmpSentryTM protection, output metering, auto-shutdown at fault detection and NFPA 110 Level 1 compliance.
Cooling system
Standard integral set-mounted radiator system, designed and tested for rated ambient temperatures, simplifies facility design requirements for rejected heat.
Enclosures
Optional weather protective and sound attenuated enclosures are available.
Fuel tanks
Dual wall sub-base fuel tanks and in-skid day tanks are also offered.
NFPA
The genset accepts full rated load in a single step in accordance with NFPA 110 for Level 1 systems.
