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QAS 18-38 Generator Series The QAS 18 – 38 range is equipped with Yanmar Diesel engines. These advanced engines include many noise reducing features to achieve low dB(a) levels and provide excellent load acceptance and stability while meeting EPA regulations. An engine coolant heater is standard and an isochronous electronic governor is optional. Yanmar engines are warranted for two years or 2000 hours, whichever occurs first, with parts and service available from Yanmar’s comprehensive North American distributor network. Outlet Studs 50A-125/ 250V Temp Power Output Connections QAS 18-1Ø QAS 18-3Ø - 38 N /A 3/8” 1 2 30A- 125V L5 1 0 Twist Lock 20A- 125V 1 1 GFCI Duplex Control Panel The lighted, easy-to-read control panel of the QAS allows the operator to monitor fuel level, engine coolant temperature* and oil pressure*. Individual ammeters monitor the amperage output on each leg, allowing the operator to easily identify load imbalances. Line-toline and line-to-neutral voltage can be checked by rotating the sevenposition switch on the panel. Output voltage can be fine-tuned by adjusting the potentiometer on the front panel. Arrays of NEMAstandard convenience receptacles, protected by individual branch circuit breakers, are provided to allow quick and easy connection to the unit. QAS 18-1Ø QAS 18-3Ø-38 *Not on QAS 18-1Ø
Powered by Yanmar Diesel Model QAS 18-1Ø QAS 18-3Ø QAS 28 QAS 38 Continuous kVA Rating kVA 15 20 31 42 Continuous 3Ø kW Rating @ 0.8 P.F. kW N/A 16.5 25 35 Continuous 1Ø kW Rating @ 1.0 P.F. kW 15 11.5 19 28 Voltage Selections 3Ø N/A 208 220 240 416 440 460 480 Switchable Voltage Selections 1Ø 120 / 240 120 127 139 240 254 265 277 Switchable Low Voltage Circuit Breaker Thermal Trip A 63 50 80 125 Low Voltage Circuit Breaker Magnetic Trip A 3 - 5 x In 3 - 5 x In 3 - 5 x In 3 - 5 x In High Voltage Circuit Breaker Thermal Trip A N/A 25 40 50 High Voltage Circuit Breaker Magnetic Trip A N/A 3 - 5 x In 3 - 5 x In 3 - 5 x In Alternator Model ECO 28 1L ECO 28 2L ECO 32 1S ECO 32 3S Voltage Regulation Accuracy 1.5% 1.5% 1% 1% Frequency Droop Accuracy 3 - 5%* 3 - 5%* 3 - 5%* 3 - 5% * Amperage Capability @ 120 V - 1Ø A 2 x 63 2 x 50 2 x 80 2 x 125 Amperage Capability @ 240 V - 1Ø A 63 50 80 125 Amperage Capability @ 208 V - 3Ø A N/A 50 80 117 Amperage Capability @ 240 V - 3Ø A N/A 48 72 101 Amperage Capability @ 480 V - 3Ø A N/A 25 40 50 Motor Starting Capability hp 10 10 15 20 Engine Model 4TNE88-ACG 4TNE88-ACG 4TNE94-ACG 4TNE98-ACG Engine Type Four Cycle Four Cycle Four Cycle Four Cycle Aspiration Natural Natural Natural Natural Number of Cylinders 4 4 4 4 Displacement L 2.2 2.2 2.8 3.3 Horsepower Developed @ 1800 RPM hp 26 26 42 53 Battery Voltage V 12 12 12 12 Charging Alternator Output A 40 40 40 40 Oil Sump Capacity gal 2.5 2.5 2.75 2.75 Cooling System Capacity gal 1.5 1.5 3.0 3.25 Fuel System Capacity gal 17 21.5 21.5 21.5 Fuel Consumption @ 25% Load GPH 0.3 0.3 0.4 0.6 Fuel Consumption @ 50% Load GPH 0.5 0.6 0.8 1.1 Fuel Consumption @ 75% Load GPH 0.8 0.9 1.2 1.7 Fuel Consumption @ 100% Load GPH 1.1 1.3 1.6 2.2 Sound Level @ 23 Feet dB(a) 65 67 68 68 Skid Mounted Dimensions lxwxh 74x32x38 81.5x36.25x45.5 Weight **(dry) lbs. 1574 2068 2183 2315 Weight ***(wet) lbs. 1748 2293 2408 2571 Trailer Mounted Dimensions (optional) lxwxh 137x70x62 137x70x70 Auxiliary Fuel Tank Capacity gal. 50 50 50 50 Weight **(dry) lbs. 2434 2928 3043 3175 Weight ***(wet) lbs. 2967 3512 3627 3790 * 0.25% when equipped with optional isochronous governor ** Dry weight includes engine oil, coolant and battery *** Wet weight includes engine oil, coolant, battery and fuel
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Atlas copco generators

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