Doosan G150WCU-3Q-T4i Portable Power Generator

G150 Tier-4i Generator

The G150 Tier-4i generator from Doosan Portable Power delivers 150 kVA (120 kW) at 67 dB(A) at 100% load with an optional variable speed fan, Doosan Portable Power delivers the coolest and quietest mid-range T4i package in the market. To increase the versatility of the machine, a Dual-Frequency switch is a standard feature that allows the generator to change from 50Hz to 60Hz. The G150 T4i also boasts a Quad Voltage feature that allows the user to select between from 120/240V-1Ø, 208V-3Ø, 480V-3Ø, and 600V-3Ø with the flip of a switch. With Quad Voltage, the G150 T4i is one of the most versatile 150 kVA generator on the market. Enhancing performance in even the most extreme temperatures is an optional Tundra Package, which ensures startup and reliable operation in temperatures as low as -40°F/°C. The package includes a coolant heater, oil pan heater, battery charger, battery heater pad and heated breather hose.

A fuel-efficient Tier 4i-compliant Cummins QSB7 T4i engine improves fuel economy so that the G150 T4i can run for 43 hours (at 100% load). Industry-leading serviceability continues with 500-hour service intervals. The G150 T4i is equipped with a Leroy-Somer alternator with AREP excitation, protecting against overload and short-circuit, offering voltage stability and greater motor-starting capability.

The new operator-preferred analog control panel has been enhanced featuring large, brightly lit meters for at-a-glance monitoring. The onboard engine diagnostic display panel includes the controls and indicators required to operate and maintain the aftertreatment regeneration system. A run/idle switch on the control unit ensures reduced engine wear during startup in extreme cold temperatures. Dual frequency capability is now standard on the Tier 4 portfolio to expand the versatility of the machines to power 50Hz applications with the simple flip of a switch. A Voltage Selector Switch is a standard feature to provide quick and easy voltage configuration. The signature protection feature on Doosan Portable Power generators prevents operators from switching voltage during operation – a common cause of downtime and expensive component failure.

Connection panels are now more accessible for improved safety and convenience with more power wiring connections available, an optional camlock panel to further expand connection versatility, an array of twist-lock and GFCI receptacles and a terminal board that accepts bare wire or lugged cable.

Whatever the task is, the G150 T4i is hardened and versatile to power your success.


@ 480V-3Ø, 0.8PF, 60Hz 150 kVA (120 kW ), 180 Amps
@ 240V-3Ø, 0.8PF, 60Hz 150 kVA (120 kW ), 361 Amps
@ 208V-3Ø, 0.8PF, 60Hz 128 kVA (102 kW ), 355 Amps
@ 240V-1Ø, 1.0PF, 60Hz 4 Wire 120 kVA (120 kW ), 167 Amps / 75 kVA (75 kW ), 313 Amps
@ 120V-1Ø, 1.0PF, 60Hz 4 Wire 102 kVA (102 kW ), 283 Amps / 75 kVA (75 kW ), 313×2 Amps
@ 400V-3Ø, 0.8PF, 50Hz 75 kVA (75 kW ), 313×2 Amps
@ 600V-3Ø, 0.8PF, 60Hz 135 kVA (108 kW ), 195 Amps
Voltage Configuration 3-Position Switch
Frequency Capability 50Hz/60Hz Switchable


Engine Make / Model Cummins QSB7-G7
Power Output @ 1800RPM - HP (kWm) 232 (173)
Emissions Tier Level Tier 4-interim
Fuel Tank Capacity - Gal (L) 368 (1394)
Runtime @ 100% Load - Hr 43

DIMENSIONS w/ running gear

Length - in (mm) 216.7 (5503)
Width - in (mm) 83.2 (2114)
Height - in (mm) 102.9 (2615)
Weight (Ready to Run) - lb (kg) 10477 (4752)
Sound Level @ 23 ft (7m) and 100% Load - dB(A) 67
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