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COMMERCIAL | OPEN | 24,000 Watt Diesel Generator | 3P | 277/480 Volt

  • SKU # AGi20P.3.480

20 KW | 24 KVA | 3 PHASE 277 / 480 V | DIESEL GENERATOR - Open Frame

Aurora Perkins Engine Powered Diesel Generator
3 Phase Compact Generator 



Model AGi20P.3.480
Type Diesel
Power 20 kW | 24 kVA Standby Generator
60 Hz., 1800 RPM Liquid Cooled
Three Phase, 0.8 Power Factor
Automatic Voltage Regulated
Sound Level 73 dB @ 23 Feet
Dimensions L x W x H 57" x 33" x 39" 
Weight 1100 lb
Engine Made in the USA
Genset  Made in Canada
Approvals CSA SPE-1000 / EPA


3 Phase 480 Volt Power Generator 

A clean, quiet and compact four-cylinder Perkins diesel engine powers this generator. Perkins engines can be used up to three weeks at a time before they require an oil change.  The engine is radiator cooled and runs at 1800 RPM making it quieter than traditional gas generators and last over ten times longer.  




This generator uses a Powerful four-cylinder diesel engine from Perkins. While it is small and compact, it offers exceptional performance and long life.  Perkins engines are Radiator Liquid Cooled and can operate full or part-time.  Perkins engines require less oil, air, and fuel filter changes (every 500 hours depending on load factor). The low fuel consumption and ultra-compact engine offer all the customer benefits experienced from larger engine sizes. The engine has a proven record and has been in use worldwide for many years in providing power for homes, business and construction equipment.

Model Number Perkins 404D-22G
Origin USA
Displacement 2.2 Liters
Number of cylinders 4
Speed 1800 RPM
Compression Ratio 23.5:1
Aspiration Naturally Aspired
Governor Type Mechanical
Fuel System Diesel
Bore and Stroke 84 x 100 mm (3.3in x 3.9in)
Cooling System Water Cooled
Coolant Capacity  

7.0 liters (1.8 US gals)

Oil Capacity  

10.6 liters (2.8 US gals)

Oil and Filter Changes 500 Hours depending on load factor.
Starter 12 Volt
Alternator 65 Amp DC
Starter Battery 850 CCA
Perkins Engine Warranty 2 Year 3000 Hour - 5 Year Optional


Engines normally use an engine coolant temperature switch and oil pressure switch.  They only turn on or off when there is a fault and do not let you read actual engine temperature. We feel it is important to know how hot the engine is running and detect an issue before it becomes necessary to shut down the engine.  For this reason, we include an additional sensor to monitor the coolant temperature so that if it ever reaches a warning level it will notify you and log the condition.  If a critical level is reached the generator controller will shut down the generator.  For added protection the generator controller is additionally set to log four set points. High and Low warning levels and failure levels. 



Aurora Generators are equipped with this additional sensor in the radiator to eliminate low coolant level. It is engineered from high quality corrosion-resistant materials to accurately and reliably alert the generator controller to low coolant level and shut down the generator. Engine temperature sending units/sensors alone are supposed to detect overheating. However, if coolant level is low,  temperature sending units/sensor's cannot measure the coolant temperature. When coolant level in an engine is low, the cooling system cannot adequately remove excess heat from the engine. 


Dynagen - Clear generator instrumentation, complete generator system protection, and control. 150 event logging, fuel level display and alarm, programmable maintenance and exercise clock, and much more. The controller is built to withstand severe duty, extreme shock, and vibration. Easy to use and configure via front panel buttons. Can be used manually or with 2 wire fully automatic starting devices.  Devices such as transfer switch or wireless remote control. Accepts additional customer sensors and switched outputs

Auto Start Generator Controller by DynaGen
Rear View of the DynaGen TG410 Generator Controller
Model TG350 Standard Generator Controller
TG410 Optional Upgrade
Operating Voltage 5.5 to 38 VDC continuous.
Cranking dropouts to 0VDC
for 50mS, also meets SAEJ1113-11
Standby Current Draw 50 MA
Protection Reverse battery & overload protection
Operating Temperature -40c - + 70c (-40 - +158F)
Vibration and Shock Meets or exceeds SAEJ1455
Electromagnetic Compatibility Meets or exceeds MIL-STD-461E Conducted Emissions
Configurable Switched Inputs 5
Configurable Switched Outputs 4

5 Years


Maintenance and Exercise Clock - It is easy to lose track of how long your generator has been running without it. The maintenance clock keeps track of your run time and is set to remind you when it is time to do an oil change. The exercise clock is also programmable as is the low battery voltage detection that can also trigger an exercise cycle if desired.


Aurora industrial class alternators are highly reliable and produce clean, stable power even in harsh conditions. Automatic Voltage Regulated to 0.5% precision. The alternator is brushless and requires no maintenance. The generator head is directly driven by a heavy engine flywheel. The large rotating mass helps to reduce fluctuations in power when heavy loads are applied.

Model SLS18MD or SMU180C
Type Brushless Automatic Voltage Regulated
Voltage Regulation ±0.5%
Rated Output 277 /480 Volt 3 Phase 20 kW | 24 kVA
Insulation Class H
Warranty 5 Years


Integrated generator 45L/12Gal aluminum fuel tank helps to simplify installation and reduce generator footprint. Fuel tank uses a mechanical fuel gauge for quick checks between usage and a second electronic gauge. The electronic gauge is monitored, and fuel levels are displayed by the generator controller. If the fuel level is low and/or a safety shutdown occurs before the tank is empty, the display will show you. This feature helps reduce downtime or preventing the fuel tank from running dry.

This generator is available with a few different fuel tank options.


TG410 Controller Upgrade  $149.00 USD  $190.00 CDN
Current Load Sensing  $179.00 USD  $229.00 CDN
Battery Charger  $176.00 USD  $225.00 CDN 
Coolant Block Heater  $185.00 USD  $235.00 CDN
Remote Monitoring  N/A for the USA  $635.00 CDN
Wireless Remote Control  $230.00 USD  $295.00 CDN
Solar Battery Charger  $63.95 USD  $81.00 CDN
4" Riser Feet  $155.00 USD  $193.00 CDN
Spare Perkins OEM Filters  Click for Perkins Filters  Click for Perkins Filters

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