2018 Kohler Engine 6VSG 6 kW Generator


Kohler Engine
6VSG 6 kW Generator



6VSG Single Phase, Natural Gas|LPG

The generator made for renewable energy, including solar power or other remote applications. The KOHLER 6VSG battery-charging generator efficiently charges battery banks when renewable energy sources can't keep up with demand. If your battery charge drops below a pre-set level, the 6VSG charges it automatically.

  • High-quality power: The 6VSG provides consistent power to charge battery banks used with renewable energy, telecom and other remote applications.
  • Economical: The 6VSG is fueled by clean, affordable natural gas or liquid propane (LPG).
  • Remote control: Add the Programmable Interface Module and OnCue® Generator Management System to communicate with the 6VSG remotely.
  • Automatic: The generator senses when the battery bank is running low and turns on automatically to keep up with demand.
State-Of-The-Art Battery Charging
  • Can be used for industrial battery bus support to reduce the size of battery banks
  • Designed specifically for efficient charging of battery banks for renewable energy, telecom and other remote applications; provides consistent direct-current output to maintain battery banks directly without inefficient conversions from alternating current
  • Generator can maintain batteries directly without an expensive converter or monitoring equipment
  • Longer engine life and reduced fuel consumption when compared to fixed speed; variable engine speed (2300-2900 RPM) reduces maintenance requirements and fuel consumption and extends the life of the engine
  • Powered by commercial-grade KOHLER Command PRO® engine
  • Accommodates most systems; compatible with positive- or negative-grounded systems in 24, 36 and 48 volt configurations
  • Compatible with optional OnCue® Generator Management System 3.1 or higher and Programmable Interface Monitor
Special Features
  • Extremely quiet operation with sound at 62 dBA at 50% load
  • Steel enclosure with automotive-grade paint for advanced corrosion protection
  • Runs on either natural gas or liquid propane (LPG); simple switching between natural gas and LPG in the field
  • 18-month, 1000-hour warranty for off-grid application
  • 5-year, 2000-hour warranty for on-grid applications
  • Optional installed communications kit includes fuel-pressure switch and enclosure intrusion alarm
  • Rated kW LP: 6 kW
  • Rated kW NG: 6 kW
  • Amps LP: 111 amps
  • Amps NG: 111 amps
  • Alternator Note: All information shown is for 48 VDC nominal voltage.
  • Displacement: 725 cm³ (44 cu. in.)
  • Horsepower: NG 18.5 hp, LP 21.2 hp
  • Enclosure Material: Steel
  • Sound Output During Weekly Exercise: 66 dB(A)
  • Sound Output During Full-speed Operation: 66 dB(A)
  • Warranty: Premium five-year/2000-hour limited warranty for on-grid applications, 18-month/1000-hour for off-grid applications
  • Country of Origin: US
  • Certifications/Listings: EPA|CSA
  • Automatic Transfer Switch Included: No
  • Remote Monitoring Available: Yes
  • Off Grid Warranty: 18-month/1000-hour for off-grid applications
  • Off Grid / Utility Backup: Utility Backup|Off Grid
  • Weight: 420 lb. (191 kg)
  • Alternator Type: Brushless, Permanent-Magnet
  • Fuel Consumption on NG at 50% load: 75 cfh
  • Fuel Consumption on LP at 50% load: 32 cfh
  • Controller: VSC Controller
  • Cylinder Arrangement: V-2
  • Dimensions: 1008 mm x 707 mm x 723 mm (39.7 in. x 27.8 in. x 28.5 in.)
  • Engine Manufacturer/Description: KOHLER
  • Engine Model: CH740
  • Engine/Alternator RPM: 3300
  • Fuel Type: Natural Gas|LPG
  • Frequency: Variable Speed, Direct Current
  • Phase: Single Phase
  • Voltage @ 60 Hz: 24/48
  • Digital Voltage Regulation: ±0.5%
  • Built in Mounting Pad: No
*Based on generator and load size.



Engine Type
Gas: 18.5 hp; LP: 21.2 hp
44 cu. in. (725 cm³)


39.7 in. (1008 mm)
27.8 in. (707 mm)
28.5 in. (723 mm)
420 lb. (191 kg)


AC Output
6 kW
Noise Level
66 dB(A)

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