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COMMERCIAL | 3 Phase | 55,000 Watt Diesel Generator

  • SKU # AGi55P.1.240.O-4

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55,000 Watt Perkins Turbo Diesel Powered Generator

Three-Phase Option 120,208 Volt | 277/480 

  • Perkins 4.4L Turbo Diesel Engine
  • All stainless steel fasteners
  • Steel power coated welded frame
  • Advanced generator controller
  • Designed for full or part-time use with 500 hour service intervals
  • Prime power rated alternator 

General Specifications

Model AGi55P.3.208.O
Type Diesel
Power 55 kW | 68.75 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  73" x 40" x 51"
Weight 1600 lb
Engine  Perkins 1104D-44TG1 
Genset  Made in Canada
Approvals CSA SPE-1000 / EPA


A clean, quiet and compact 4.4L four cylinder Perkins Turbo 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.  

Main Features

  • Steel fabricated HD base frame - Powder coated finish
  • Conduit Stub Ups Compatible 
  • Genset anti-vibration mounts for vibration isolation
  • Perkins 4 Cylinder 4.4L Turbo Diesel Engine
  • Maintenance Free Alternator - Automatic Voltage Regulated
  • Heavy duty starter battery and cables
  • Engine Temperature Switch and Sending Unit
  • VDO Temperature Sending Unit 
  • Gems Oil Pressure Sending Unit (optional)
  • Gems Coolant Level Sensor
  • All Stainless Steel Fasteners
  • Advanced generator controller with Automatic and Manual Starting | Two wire start for operation with transfer switches or other control systems
  • Muffler
  • Main Circuit Breaker
  • EZ Oil Drain Valve


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 ECP32-3L Mecc Alte or  Linz Pro Series Alternator  
Type Brushless Automatic Voltage Regulated
Voltage Regulation ±0.5%
Rated Output Three Phase 120/208 or 277/480 Volt
55 kW 69 kVA
Insulation Class H
Warranty 5 Years

Other Resources

Generator Controller - Features & Functions

For clear generator instrumentation, protection and control, this generator uses a DynaGen TG350 Controller.

DynaGen Generator Controller TG350

Controller Main Features

There are two versions of this controller. The TG350 is included. The TG410 is an optional upgrade. With the TG410, current sensors can be used to monitor generator loads/power consumption.  One other feature is the "Can Bus" port. Like a vehicles ODBII connector, it lets you communicate with the generator for remote monitoring and control.  You will need the TG410 if you wish to use this in the future. 

Monitoring Functions

Engine Temperature

VDO Temperature Sender for Perkins Engines

Engines normally use just a high temperature sensor that is used by the engine / generator controller to shut down the motor if it over heats.  AURORA adds an additional temperature sending unit so you can read the temperature and the controller can log warning levels and failures.  VDO is a leader engine temperature sensors and is the manufacture of choice for AURORA generators temperature monitoring.  

Coolant Level Sensor

Radiator Coolant Level Sensor

Engine temperature sending units and sensors are supposed to detect overheating. If coolant levels are low or missing, they do not work.  This is why AURORA also uses a coolant level sensor to sense the loss of coolant and shut down the engine if necessary. The controller will log the event and let you take corrective action. Refill any missing coolant and the sensor will return to normal state.

Oil Pressure

Perkins Caterpillar Oil Pressure Sensor Sending Unit

Oil pressure is an important factor in the longevity of an engine. Oil pressure ensures that the metal parts moving in the engine, never touch each other. An oil pressure switch is standard on every engine/generator. Should oil pressure ever be lost, the engine controller will shut down the motor.

For some installations, customers may be required to keep track and log the actual oil pressure.  For this, another optional oil pressure sending until is available. Knowing the actual oil pressure will help you know if the engine has warmed up, oil is flowing as it should, filters are not plugged, oil is breaking down or engine wear is happening and service is required.

Fuel Level

Fuel Level Sensor / Sending Unit

Aurora fuel tanks have a fuel level sensor installed. The controller can display a warning when the fuel level is low. The generator can be set to shut down before its empty. Shutting down before it is empty helps prevent difficult starting caused by air that enters the fuel pump and fuel injectors.

Generator Output

The generator controller monitors the power generated by the alternator. From the output voltage, it can determine the engine speed in rpm, alternator frequency and voltage output are correct.  If they start to fall outside of set normal ranges, it will warn you and log it for future reference. Any critical errors will cause the generator to safely shut down. 

Controller Specifications
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 protected
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

Engine Specifications

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 fewer 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 1104D-44TG1
Origin USA
Displacement 4.4 Liters
Number of cylinders 4
Speed 1800 RPM
Compression Ratio 23.5:1
Aspiration Turbo 
Governor Type Mechanical
Fuel System Diesel
Bore and Stroke   105 x 127 mm / 4.1 x 5.0 in
Cooling System Water Cooled
Coolant Capacity  16.5 Litre / 4.4 US gal
Oil Capacity   8.4 Litre / 2.2 US gal
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

Fuel Tank

AURORA offers a few fuel tank options. 

  • Day Tank - Internal 45 Litre / 12 Gallon
  • Sub Base - 450 Litre / 100 Gallon Tank
  • Standalone - 450 Litre / 100 Gallon UL Double Wall Tank
  • Standalone - 1100 Litre / 250 Gallon UL Double Fuel Tank 
  • Mobile - 225 Litre / 50 Gallon UL Mobile Fuel Tank
  • Mobile - 450 Litre / 100 Gallon UL Mobile Fuel Tank

Generator 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 $635.00 CDN
Wireless Remote Control $230.00 USD $295.00 CDN
Solar Battery Charger $63.95 USD $81.00 CDN
Battery Cables (OEM) $32.00 USD $40.00 CDN
4" Riser Feet $155.00 USD $193.00 CDN
Snow Hood call call
Damper call call
Space Heater call call
Spare Perkins OEM Filters Click for Perkins Filters  Click for Perkins Filters

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