Specifications + Dimensions

AC Output
60 Hz, 1800 RPM,
1 Ph, 1.0 PF,
120-240 V/25A,
120 V/50A
5 kW
50 Hz, 1500 RPM,
1 Ph, 1.0 PF,
220 V/22.7A
4.5 kW
Voltage Regulation+/- 5%
(Based on 1.0 unity power factor. Deratings: 3% per 1000 ft. over 500 feet above sea level. 1.5% for every 10° over 77°F)
Lugger L673L Engine
TypeVertical 3
cylinder diesel
Displacement:46.4 in3
(0.76 ltr)
Bore/Stroke:2.64/2.83 in
(67/72 mm)
HP @ RPM9.9/1800
Approximate fuel use:
1800 RPM
@ full load
0.59 gph
(2.2 lph)
1800 RPM
@ half load
0.32 gph
(1.2 lph)
1500 RPM
@ full load
0.50 gph
(1.9 lph)
1500 RPM
@ half load
0.28 gph
(1.1 lph)
(Actual fuel consumption will vary depending on operating conditions.)
Installation Data
Exhaust Outlet1.25 in (32 mm)
Fuel inlet and return1/4 inch NPT
Weight and Height
Length:32.8 in (834 mm)
Width:17.1 in (435 mm)
Height:26.8 in (650 mm)
Approximate Dry Weight:390 lbs (178 kg)


Information and dimensions are subject to change without notice.

Contact dealer for most current installation drawings


Features + Benefits

  • Four cycle, 3 cylinder, liquid cooled, naturally aspirated, overhead valve, industrial-duty diesel.
  • Swirl combustion design improves fuel efficiency, reduces smoke and noise.
  • Glow plugs for fast cold weather starting.
  • Liquid-cooled with radiator and pusher cooling fan. Steel radiator shroud and fan guard protects the radiator and operator.
  • Bosch-type in-line injection pump.
  • Stop solenoid controls the fuel rack, not throttle, to eliminate speed variance and linkage problems.
  • Engine speed governed to 5% for close AC frequency control.
  • Pintle fuel injectors have replaceable tips for lower service costs.
  • Mechanical fuel pump with hand primer.
  • Large spin-on fuel filter.
  • Steel fuel lines.
  • Large replaceable air filter protects engine in dusty environments.
  • Residential muffler built into the exhaust manifold simplifies installation.
  • Meets US EPA Tier IV exhaust emission requirements for cleaner air.
  • Pressure lubricated. Trochoid oil pump.
  • Full flow, spin-on oil filter with bypass.
  • 3.1 qt. (3 ltr) oil capacity.
  • 12 volt system includes starter motor, battery charging alternator with solid state voltage regulator and DC circuit breaker.
  • Standard, unit mount S-1B control panel has engine hour meter, start-stop switch with run light and preheat switch.
  • Dual panel relays and quick disconnect harness plug-ins. With optional Y-harness and 10, 20 or 40 foot wire harness extensions, you can have up to six remote control panels up to 100 feet from the generator set.
  • Safety shutdown system for low oil pressure and high coolant temperature.
  • Northern Lights, direct coupled, 4 pole, revolving fi eld, 4 lead reconnectable generator with Class H insulation and prelubricated bearing. Conservative heat rise rating: 95°C/50°C ambient. Compare this to light duty sets with heat rise ratings of 130°C or higher.
  • External automatic voltage regulator gives you ±5% voltage regulation. AVR powered by dedicated AC winding for improved motor starting. AVR circuit breaker.
  • 30 amp mainline circuit breaker protects generator from AC overloads and shorts.
  • High air flow from integral fan keeps generator running cool.
  • Welded steel skid frame gives rigid support and makes installation easy.
  • Enhanced fan guard for improved operator safety.
  • Flexible mounts isolate engine vibration for smooth operation.
  • Long life, blue enamel paint finish.
  • Operator’s and parts manuals.
  • Rigorous quality control includes a test run with load.
  • Export grade shipping crate protects set.
© Northern Lights, Inc. 2018