DCA150SSI
WhisperWatt
TM
Generator
Specifications
Cooling System
Fan Load
5.6 hp (4.2 kW)
Coolant Capacity (with radiator)
7.8 gal (29.5 L)
Coolant Flow Rate (per minute)
46 gal (173 L)
Heat Rejection to Coolant (per minute)
4248 Btu (4.48 MJ)
Heat Rejection from Engine (per minute)
1271 Btu (1.34 MJ)
Maximum Coolant Friction Head
9.7 psi (67 kPa)
Maximum Coolant Static Head
29.5 ft (9.0 m)
Ambient Temperature Rating
104°F (40°C)
Generator Specifications
Design
Revolving field, Self-ventilated
Drip-proof, Single bearing
No. of Poles
4-pole
Excitation
Brushless with AVR
Standby Output
132 kW (165 kVA)
Prime Output
120 kW (150 kVA)
Generator RPM
1800
Voltage — 3Ø
208, 220, 240, 416, 440, 480V Switchable
Voltage — 1Ø
120, 127, 139, 240, 254, 277V Switchable
Armature Connection
Star with neutral / Zig Zag
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
69
Fuel System
Recommended Fuel
ASTM-D975-No.1 and No. 2-D
Maximum Fuel Flow (per hour)
31.7 gal (120 L)
Maximum Inlet Restriction (Hg)
8.9 in. (225 mm)
Fuel Tank Capacity
74 gal (280 L)
Fuel Consumption
full load gph (lph)
8.9 (33.6)
75% load gph (lph)
7.5 (28.3)
50% load gph (lph)
5.0 (19.0)
25% load gph (lph)
3.1 (11.9)
Amperage
Rated Voltage
Maximum Amps
1Ø 120 Volt
333.3 Amps (4 wire)
1Ø 240 Volt
166.7 Amps (4 wire)
3Ø 240 Volt
361 Amps
3Ø 480 Volt
180 Amps
Main Line Circuit Breaker Rating
400 Amps
Over Current Relay Trip Set Point
180 Amps
Engine Specifications
Make/Model
Isuzu / 6HK1X
Emissions
EPA Tier 3 Certified
Starting System
Electric
Design
4-cycle, watercooled, direct injection,
turbocharged, air to air intercooled
Displacement
7790 cc
No. cylinders
6
Bore x Stroke
115 x 125 mm
Gross Engine Power Output
240 hp (179 kW)
BMEP
173 psi (1190 kPa)
Piston Speed
1480 ft ft/min (7.5 m/s)
Compression Ratio
17.5 : 1
Engine Speed
1800 rpm
Overspeed Limit
2070 rpm
Oil capacity
10.6 gal (40.0 L)
Battery
12V 100 Ah x 2 (24V systems)
Air
Combustion Air
364 cfm (10.3 m
3
/min)
Maximum Air Cleaner Restriction
25.0 in. H
2
O (6.25 kPa)
Alternator Cooling Air
1352 cfm (38.3 m
3
/min)
Radiator Cooling Air
7416 cfm (210 m
3
/min)
Exhaust System
Gas Flow (full load)
844 cfm (23.9 m3/min)
Gas Temperature
887°F (475°C)
Maximum Back Pressure
53.2 in H
2
O (13.3 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.
DCA150SSI Rev 0
Warranty*
Isuzu Engine
12 months from date of purchase with unlimited hours or 24 months
from date of purchase with 2000 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.
