DCA600SSK
WhisperWatt Generator
SpecificationsSpecifications
SpecificationsSpecifications
Specifications
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.
Warranty*
Komatsu Engine
12 months from date of purchase or 1000 hours (whichever
occurs first).
Generator
12 months from date of purchase or 1000 hours (whichever
occurs first).
*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 528 KW (660 KVA)
Prime Output 480 KW (600 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)
±1.0%
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
75
Engine Specifications
Make / Model Komatsu / SA6D170AE-1
Emissions EPA Tier 2 Certified
Starting System Electric
Design
Direct Injection,
Turbocharged, Aftercooled
Displacement 23,150 cc
No. cylinders 6
Bore x Stroke (mm) 170 x 170
Gross Engine Power Output
539 bhp (402 kWm) Standby
490 bhp (365 kWm) Prime
BMEP
257 psi (1773 kPa)
234 psi (1612 kPa)
Piston Speed 2008 ft./min. (10 m/s)
Compression Ratio 14:1
Engine Speed 1800 rpm
Overspeed Limit 2100 rpm
Oil capacity gallons (liters) 16.1 (60.9)
Battery 12V 200Ah x 2 (24V System)
Exhaust System
Gas Flow (full load)
4555 cfm (129 m
3
/min) Standby
4449 cfm (126 m
3
/min) Prime
Gas Temperature
858°F (459°C) Standby
822°F (439°C) Prime
Maximum Back Pressure 40 in. H
2
O (10 kPa)
Fuel System
Maximum Fuel Flow (per hour) Standby: 41 gallons (37 liters)
Maximum Inlet Restriction (Hg) 0.4 in. (9.8 mm)
Maximum Return Restriction (Hg) 3.9 in. (98 mm)
Fuel Tank Capacity 129.5 gallons (490 liters)
Fuel Consumption
full load gph (lph)
75% load gph (lph)
50% load gph (lph)
25% load gph (lph)
33.9 (128.3)
26.7 (101.1)
17.4 (65.9)
10.6 (40.1)
Cooling System
Fan Load 18.8 hp (14 kW)
Coolant Capacity (with radiator) 29.6 gallons (112 liters)
Coolant Flow Rate (per minute) 197 gallons (744 liters)
Heat Rejection to Coolant (per minute)
Standby: 19715 Btu (20.8 MJ)
Prime: 17535 Btu (18.5 MJ)
Heat Radiated to Room (per minute)
Standby: 4151 Btu (4.38 MJ)
Prime: 3697 Btu (3.90 MJ)
Maximum Coolant Friction Head 5.0 psi (34 kPa)
Maximum Coolant Static Head 45 feet (14 meters)
Ambient Temperature Rating 95°F (35°C)
Air
Combustion Air
Standby: 1815 cfm (51 m
3
/min)
Prime: 1776 cfm (50 m
3
/min)
Maximum Air Cleaner Restriction 30 in. H
2
O (7.0 kPa)
Alternator Cooling Air 3023 cfm (86 m
3
/min)
Radiator Cooling Air 18891 scfm (535 m
3
/min)
Minimum Air Opening to Room 46 sq.ft (4.26 sq.m)
Minimum Discharge Opening 16.5 sq.ft (1.5 sq.m)
Amperage
Rated Voltage Maximum Amps
1Ø 120 Volt 1333.3 amps (4 wire)
1Ø 240 Volt 666.7 amps (4 wire)
3Ø 240 Volt 1443.4 amps
3Ø 480 Volt 721.7 amps
