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DCA800SSK
WhisperWatt
TM
Generator
Specifications
Warranty*
Komatsu Engine
12 months from date of purchase or 1000 hours (whichever occurs
first).
Generator
24 months from date of purchase or 2000 hours (whichever occurs
first).
Trailer
12 months excluding normal wear items.
*Refer to the express written, one-year limited warranty sheet for additional
information.
Generator Specifications
Design
Revolving field, self-ventilated, drip-proof,
Single bearing
No. of Poles 4-pole
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
(No load to full load)
±0.5%
Power Factor 0.8
Frequency 60 Hz
Frequency Regulation:
No Load to Full Load
Isochronous under varying loads from no load
to 100% rated 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)
Full load at 23 feet
73
Engine Specifications
Make / Model Komatsu / SAA6D170E-3
Emissions EPA Tier 2 Certified
Starting System Electric
Design
4-cycle, water-cooled
Direct Injection, Turbocharged,
Air-to-air Intercooled
Displacement 23150 cc
No. cylinders 6
Bore x Stroke (mm) 170 x 170
Gross Engine Power Output 1220 hp (909.7 kW)
BMEP 361 psi (2487 kPa)
Piston Speed 2008 ft./min. (10.2 m/s)
Compression Ratio 16.1 : 1
Engine Speed 1800 rpm
Overspeed Limit 2100 rpm
Oil capacity gallons (liters) 37.2 (141.0)
Battery 12V 200 Ah x 4 (24V system)
Fuel System
Maximum Fuel Flow (per hour) 196 gallons (740 liters)
Maximum Inlet Restriction (Hg) 4 in. (101.6 mm)
Fuel Tank Capacity 129.5 gallons (490 liters)
Fuel Consumption gph lph
full load 41.3 156.5
75% load 30.8 116.4
50% load 22.6 85.9
25% load 14.5 54.9
Cooling System
Fan Load 49.3 hp (36.8 kW)
Coolant Capacity (with radiator) 40.4 gallons (153.0 liters)
Coolant Flow Rate (per minute) 180 gallons (680 liters)
Heat Rejection to Coolant (per minute) 15277 Btu (16.1 MJ)
Heat Radiated to Engine (per minute) 6700 Btu (6.4 MJ)
Maximum Coolant Friction Head 18.6 psi (265 kPa)
Maximum Coolant Static Head 886 ft (27 meters)
Ambient Temperature Rating 104°F (40°C)
Air
Combustion Air 2350 cfm (66 m
3
/min)
Maximum Air Cleaner Restriction 30.1 in. H
2
O (7.5 kPa)
Alternator Cooling Air 3023 cfm (86 m
3
/min)
Radiator Cooling Air 19423 cfm (505 m
3
/min)
Amperage
Rated Voltage Maximum Amps
1Ø 120 Volt 1777.8 Amps (4 wire)
1Ø 240 Volt 888.9 Amps (4 wire)
3Ø 240 Volt 1924.6 Amps
3Ø 480 Volt 962.3 Amps
Main Line Circuit Breaker Rating 2500 Amps
Over Current Relay Trip Set Point 960 Amps
Exhaust System
Gas Flow (full load) 2435 cfm (69 m
3
/min)
Gas Temperature 842°F (450°C)
Maximum Back Pressure 56 in. H
2
O (14 kPa)
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.
DCA800SSK2 Rev 8