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MQ Whisperwatt DCA400SSI Generator (336kW)

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12,280.00 LBS

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The MQ Power Whisperwatt DCA400SSI4F mobile diesel generator offers up to 336 kW of power at 69 dBA.


  • Designed and built to withstand tough environments at construction sites and provide dependable temporary power at entertainment venues and disaster recovery operations.
  • Voltage change over board allows easy to change voltages as your applications require. 240/480 Bus Bar.
  • ECU830 microprocessor-based digital generator controller: Remote 2-wire start/stop control, Operational temperature range of -40° to 85° C, High visibility LCD display with heated screen and alphanumeric readout, Modbus interface for gauge panel and expansion options.
  • Analog generator instrumentation including AC ammeter, AC voltmeter, frequency meter, ammeter phase selector switch, voltmeter phase selector switch, and voltage regulator adjustment potentiometer.
  • Digital engine gauges include oil pressure, water temperature, fuel level, engine speed, and battery volts.
  • Automatic safety shutdown system monitors water temperature, engine oil pressure, low coolant, overspeed, and overcrank; warning lights indicate abnormal conditions.
  • Manually activated emergency stop switch shuts down generator in the event of an emergency.
  • Main line circuit breaker with 1000A rating, and 480A over current relay trip set point.
  • Fully covered power panel. Three-phase terminals and single phase receptacles allow fast and convenient hookup for most applications including temporary power boxes, tools and lighting equipment.
  • Brushless alternator reduces service and maintenance requirements and meets temperature rise standards for Class F insulation systems.
  • Open delta alternator design provides virtually unlimited excitation for maximum motor starting capability.
  • Automatic voltage regulator (AVR) provides precise regulation.
  • Electronic Governor Control maintains frequency to within ±0.25% from no load to full load.
  • Full load acceptance of standby nameplate rating in one step (NFPA 110, para 5-13.2.6).
  • Heavy duty, 4-cycle, direct injection, turbocharged, charge air-cooled, EGR, DOC, SCR, EPA Tier 4 Final certified, Isuzu diesel engine.
  • Fuel/water separator removes condensation from fuel for extended engine life.
  • Internal fuel tank with direct reading fuel gauges.
  • Sound-attenuated weather-resistant steel housing provides operation at 69 dB(A) at 23 feet.
  • E-Coat primer with polyurethane enamel finish coat.
  • Fully lockable enclosure allows safe unattended operation.


DCA400SSI4F Data Sheet


  • TRLR400XF3DA (See Accessories Tab for more information)

OPTIONS (Order with Generator)

  • Audible Alarm.
  • 10A Battery Charger.
  • Camlock Connections (3 Sets).
  • Cold Weather Block Heater.
  • Crankcase Vent Heater.
  • External Fuel Three-Way Manual Fuel Valve
  • Fire Extinguisher - 20 lbs. with bracket
  • Parallel Controls.
Standby Power:
336 kW / 420 kVA
Prime Power:
320 kW / 400 kVA
Amperage - 3 Phase:
962.3A @ 240V, 481.1A @ 480V
Amperage - 1 Phase:
888.9 (4 wire) @ 120V, 444.4A (4 wire) @ 240V
Voltage - 3 Phase:
208, 220, 240, 415, 440, 480V Reconnectable
Voltage - 1 Phase:
120, 127, 139, 240, 254, 277V Adjustable
Voltage Regulation:
Frequency Regulation:
Power Factor:
Armature Connection:
Star with neutral
4-pole, Revolving field, Self-ventilated, Drip-proof, Single bearing, Brushless with AVR, 1800 rpm
Receptacles (Single Phase):
2 - 20A 120V GFCI Duplex (5-20), 3 - 50A 240/139V Twistlock (CS6369)
Sound Level:
69 dBA
Isuzu BQ-6WG1X, 6-cylinder, 4-cycle, Water-cooled, Direct Injection, Turbocharged, Charge Air Cooled, EGR, DOC, SCR
Engine Starting System:
2 - 12V 200Ah (24V System)
Fuel / Tank Capacity:
Diesel / 55.5 gallons (w/o trailer)
Fuel Consumption:
22.5 gph @ full load, 12.2 gph @ half load
EPA Tier 4 Final
Dimensions LxWxH (inches):
182 x 60 x 89
Approximate Weight:
12,280 lb.
Engine Warranty:
12 months / unlimited hours or 60 months / 2000 hours
Generator Warranty:
24 months / 2000 hours
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