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WhisperWatt DCA800SSK Diesel generator


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Prime Rating: 640 kW (800 kVA)
Standby Rating: 704 kW (880 kVA)
60 Hertz

WhisperWatt DCA800SSK drawing



Performance Data
Prime Rating 640 kW 800 kVA
Standby Rating 704 kW 880 kVA
Generator RPM 1800
Voltage - Three Phase 208, 220, 240, 416, 440, 460, 480 V Reconnectable
Voltage - Single Phase 120, 127, 139, 240, 254, 277V Adjustable
Generator Design Revolving field, Self-ventilated, Drip-proof, Single bearing
Voltage Regulation (No Load to Full Load) ±0.5 %
Power Factor 0.8
Armature Connection Star with Neutral
Excitation Brushless with AVR
No. Poles 4-pole
Frequency 60 Hz
Frequency Regulation (steady state load) ±0.25 %
Sound Level (Full Load at 23 ft.) 73 dB(A)
Notice: Features and equipment specifications are subject to change without notice.



WhisperWatt DCA800SSK drawing



Standard Features:


Optional Generator Features:


Optional Control Features:


Optional Fuel Cell Features:


Generator Specifications
Design Revolving field, self ventilated, drip-proof, single bearing
Number of Poles 4
Excitation Brushless with AVR
Standby Output 704 KW (880 KVA)
Prime Output 640 KW (800 KVA)
Generator RPM 1800
Voltage - 3Ø 208, 220, 240, 416, 440, 480V Reconnectable
Voltage - 1Ø 120, 127, 139, 240, 254, 277V Adjustable
Armature Connection Star with neutral
Voltage Regulation ±0.5%
Power Factor 0.8
Frequency 60 Hz

Frequency Regulation:

No Load to Full Load

Isochronous under varying load from
no load to 100% load

Frequency Regulation:

Steady State

±0.25% of mean value for constant loads from no load to full load.
Insulation Class F
Sound Level dB(A) 73
Dry Weight 23,634 lbs. (10,720 kg)
Wet Weight 25,308 lbs. (11,479 kg)


Engine Specifications
Make Komatsu
Model SAA6D170E-3
Emissions EPA Tier 2 Certified
Starting system Electric
Design 4-cycle, water cooled, Direct injection, Turbocharged, air to air intercooled
Displacement 23150cc
No. cylinders 6
Bore 170 mm
Stroke 170 mm
Gross Engine Power Output 1220 hp (909.7kWm)
BMEP 361 psi (2487 kPa)
Piston Speed 2008 ft./min.
Compression Ratio 16.1:1
Engine Speed 1800 rpm
Overspeed Limit 2100 rpm
Oil Capacity 37.2 gal (141 L)
Battery 12V 200Ah X 4 (24V Systems)


Fuel System
Fuel Tank Capacity 129 gal (490 L)
Diesel Fuel at % of Load gal/hr (L/hr)
100% 41.3 (156.5)
75% 30.8 (116.4)
50% 22.6 (85.9)
25% 14.5 (54.9)


Rated Voltage Max Amps
1Ø 120V 1777.8 (4 wire)
1Ø 240V 888.9 (4 wire)
3Ø 240V 1924.6 Amps
3Ø 480V 962.3 Amps
Main Line Circuit Breaker Rating 2500 Amps
Over Current Releay Trip Set Point 960 Amps



Komatsu Engine:
12 months from date of purchase or 1000 hours (whichever occurs first).
24 months from date of purchase or 2000 hours (whichever occurs first).
12 months excluding normal wear items.



Generator is not intended for use in enclosed areas or where free flow of air is restricted.

Backfeed to a utility system can cause electrocution and/or property damage. Do not connect to any building’s electrical system except through an approved device.
Specifications are subject to change without notice.



WhisperWatt DCA800SSK Spec Sheet


DCA800SSK operators manual