DCA250SSI
WhisperWattTM Generator
Generator Specifications | ||||||
Design |
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| Revolving field, | ||
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No. of Poles |
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Excitation |
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| Brushless with AVR | |
Standby Output |
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| 220 kW (275 kVA) | |
Prime Output |
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| 200 kW (250 kVA) | |
Generator RPM |
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| 1800 | |||
Voltage — 3Ø |
| 208, 220, 240, 416, 440, 480V Reconnectable | ||||
Voltage — 1Ø |
| 120, 127, 139, 240, 254, 277V Adjustable | ||||
Armature Connection |
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| Star with neutral | |
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Voltage Regulation |
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| ±0.5% | |||
(No load to full load) |
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Power Factor |
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| 0.8 | |||
Frequency |
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| 60 Hz | |
Frequency Regulation: |
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| Isochronous under varying loads from | |||
No Load to Full Load |
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| no load to 100% rated load | ||
Frequency Regulation: |
| ±0.25% of mean value for constant loads | ||||
Steady State |
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| from no load to full load | ||
Insulation |
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| Class F | |
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Sound Level dB(A) |
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| 68 | |||
Full load at 23 ft |
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Engine Specifications |
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Make/Model |
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| Isuzu / 6UZ1X | ||
Emissions |
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| EPA Tier 3 Certified | ||
Starting System |
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| Electric | ||
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Design |
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| Turbocharged, Air cooled | |||
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Displacement |
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| 9839 cc | ||
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No. cylinders |
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| 6 | |||
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Bore x Stroke (mm) |
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| 120 x 145 | ||
Gross Engine Power Output |
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| 348 hp (259 kW) | |||
BMEP |
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| 252 psi (1735 kPa) | ||
Piston Speed |
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| 1713 ft/min (8.7 m/s) | ||
Compression Ratio |
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| 17.5 : 1 | |||
Engine Speed |
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| 1800 rpm | ||
Overspeed Limit |
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| 2070 rpm | ||
Oil capacity gallons (liters) |
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| 10.8 gal (41.0 L) | ||
Battery |
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| 12V 150 Ah x 2 | ||
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Fuel System |
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Recommended Fuel |
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Maximum Fuel Flow (per hour) |
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| 98.8 gal (347 L) | |||
Maximum Inlet Restriction (Hg) |
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| 8.86 in. (225 mm) | |||
Fuel Tank Capacity |
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| 121 gal (460 L) | ||
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| Fuel Consumption | ||||
full load gph (lph) |
| 14.7 (55.8) | ||||
75% load gph (lph) |
| 10.9 (41.2) | ||||
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50% load gph (lph) |
| 7.5 (28.5) | ||||
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25% load gph (lph) |
| 4.4 (16.6) | ||||
DCA250SSI Rev 0 |
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Cooling System
Fan Load | 5.6 hp (4.2 kW) | |
Coolant Capacity (with radiator) | 14.3 | gal (54.0 L) |
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Coolant Flow Rate (per minute) | 56.8 | gal. (215 L) |
Heat Rejection to Coolant (per minute) | 7489 Btu (7.90 MJ) | |
Heat Radiated to Room | 2095 Btu (2.21 MJ) | |
Maximum Coolant Friction Head | 8.1 psi (56.0 kPa) | |
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Maximum Coolant Static Head | 29.5 ft (9.0 m) | |
Ambient Temperature Rating | 104°F (40°C) | |
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Air
Combustion Air | 498 cfm (14.1 m3/min) |
Maximum Air Cleaner Restriction | 13.6 in H20 (3.4 kPa) |
Alternator Cooling Air | 1459 cfm (41.3 m3/min) |
Radiator Cooling Air | 8404 cfm (238 m3/min) |
Exhaust System
Gas Flow (full load) | 1261 cfm (35.7 m3/min) |
Gas Temperature | 1004°F (540°C) |
Maximum Back Pressure | 53.2 in. H20 (13.3 kPa) |
Amperage
| Rated Voltage | Maximum Amps |
1Ø 120 Volt | 555.5 Amps (4 wire) |
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1Ø 240 Volt | 277.7 Amps (4 wire) |
3Ø 240 Volt | 601 Amps |
3Ø 480 Volt | 301 Amps |
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Main Line Circuit Breaker Rating | 800 Amps |
Over Current Relay Trip Set Point | 301 Amps |
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Warranty*
Isuzu Engine
12 months from date of purchase with unlimited hours or 24 months from date of purchase with 2000 hours (whichever comes 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,
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.
