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20kW 3 Phase 120/208 Volt Commercial Perkins Powered Enclosed Diesel Generator Heavy Duty
20kW 3 Phase 120/208 Volt Commercial Perkins Powered Enclosed Diesel Generator Heavy Duty

EXAMPLE: 20kW three phase 120/208 Volt Perkins Powered Enclosed Commercial Diesel Generator Part #UGi20P-3-208-HD-E. Heavy Duty Platform

Main Features

  • Designed for full or part-time use
  • Perkins 4 cylinder turbo diesel engine
  • DynaGen Generator Controller
  • GEMS Radiator coolant level sensor
  • GEMS Oil pressure sensor
  • VDO Water temperature sending unit
  • All Stainless Steel Fasteners
  • Main Circuit Breaker
  • EZ Oil Drain Valve
  • Steel, powder costed frame
  • Heavy duty canopy enclosure
  • Tough steel welded base frame
  • Central Lifting Point
  • Forklift Channel
  • Heavy duty alternator, automatic voltage regulated
  • Large exhaust system
  • Battery
  • Anti-vibration mounts for vibration isolation
  • Integral Fuel Tank
  • Optional Cold Weather Package (Snow Hood, Block Heater, Space Heater Dampers and Alarms
  • Optional 3 Phase 208 and 480 Volt

General Specifications

Model UGi20P-3-208-HD-E
Type Diesel
20 kW | 24 kVA Standby Generator
60 Hz., 1800 RPM Liquid Cooled
Single Phase, 0.8 Power Factor
Automatic Voltage Regulated
Sound Level 65 dB @ 23 Feet
Dimensions L x W x H 72.5" x 40.5" x 50"
Weight 1500 lbs
Engine Perkins 404D-22G
Genset Made in Canada
Approvals CSA SPE-1000 / EPA
United Generator 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 SM180E
Type Brushless Automatic Voltage Regulated
Voltage Regulation ±0.5%
Rated Output 24 kVA Standby, 120 / 208 Volt Three Phase 
Insulation Class H
Warranty 5 Years
Generator Controller - Features & Functions
For clear generator instrumentation, protection and control, this generator uses a DynaGen TG350 Controller.
Controller Main Features
  • Designed for Extreme Shock and Vibration
  • Easy to use front panel buttons
  • Manual or Automatic Starting
  • Exerciser Clock
  • Maintenance Counter
  • Passcode Protected
  • Automatic shutdowns and warnings
  • Pre-heat and post-heat timers
  • 150 Event Log
  • Fuel level display and alarm
  • Voltage display and alarm
  • Simple two-wire auto start - Easily connect to remote start using a transfer switch, off-grid power inverters, controllers or remote starters
  • Auto start on low battery and/or other sensors
  • Front panel trim feature for sensor adjustments
  • 5 Year Manufacturer Warranty
  • Load Monitoring (TG410 Model Only)

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.  United Generaotor 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 United Generator 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 United Generator 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

United Generator 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
Warranty 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 404D-22G
Orgin 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

Fuel Tank

United Generator 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
Current Load Sensing $179.00 USD
Battery Charger $176.00 USD
Coolant Block Heater $185.00 USD
Remote Monitoring  
Wireless Remote Control $230.00 USD
Solar Battery Charge $63.95 USD
Battery Cables (OEM) $32.00 USD
4" Riser Feet $155.00 USD
Snow Hood call
Damper call
Space Heater call
Spare Perkins OEM Filters Call for Perkins Filter

Flat rate shipping $650 to a commercial location with a loading dock or forklift on site. Fee will automatically be added at checkout. 

Price: $0.00
Out of Stock

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