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WhisperWatt DCA220SSJ Diesel generator


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Prime Rating — 176 kW (220 kVA)
Standby Rating — 194 kW (242 kVA)
60 Hertz

WhisperWatt DCA220SSJ drawing



Performance Data
Prime Rating 176 kW 220 kVA
Standby Rating 190 kW 242 kVA
Generator RPM 1800
Voltage - Three Phase 208, 220, 240, 416, 440, 460, 480V 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 0.25
Frequency 73 Hz
Frequency Regulation (steady state load) ±0.25 %
Sound Level (Full Load at 23 ft.) dB(A)
Notice: Features and equipment specifications are subject to change without notice.


WhisperWatt DCA220SSJ 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 194 KW (242 KVA)
Prime Output 176 KW (220 KVA)
Generator RPM 1800
Voltage - 3Ø 240 Config. 208Y/120, 220Y/127, 240Y/139
Voltage - 3Ø 480 config. 416Y/240, 440Y/254, 480Y/277
Armature Connection Star with neutral
Phase 3
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 6,902 lbs. (3,130 kg)
Wet Weight 7,753 lbs. (3,520 kg)


Engine Specifications
Make John Deere
Model 6068HF485
Emissions EPA Tier 3 Certified
Starting system Electric
Design 4-cycle, water cooled, Direct injection, Turbocharged, air-to-air intercooled
Displacement 6800cc
No. cylinders 6
Bore 106 mm
Stroke 127 mm
Gross Engine Power Output 315 hp (235kW)
BMEP 304 psi (2094 kPa)
Piston Speed 1134 ft./min.
Compression Ratio 17:1
Engine Speed 1800 rpm
Overspeed Limit 2100 rpm
Oil Capacity 8.19 gal (31 L)
Battery 12V 128Ah X 1


Fuel System
Fuel Tank Capacity 100 gal (380.0 L)
Diesel Fuel at % of Load gal/hr (L/hr)
100% 13.6 (51.6)
75% 10.4 (39.5)
50% 7.7 (29.3)
25% 4.5 (17.2)


Rated Voltage Max Amps
1Ø 120V 488.9 (4 wire)
1Ø 240V 244.4 (4 wire)
3Ø 240V 529 Amps
3Ø 480V 264 Amps
Main Line Circuit Breaker Rating 600 Amps
Over Current Releay Trip Set Point 256 Amps



John Deere Engine:
12 months from date of purchase and unlimited hours or 24 months
from date of purchase with 2000 hours (whichever ocurs first).
24 months from date of purchase or 2000 hours (whichever occurs
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 DCA220SSJ Spec Sheet


DCA220SSJ operators manual