The Cummins Onan RS30000 ensures that life goes on even when the power goes out. The RS30000 runs on Natural Gas or LP Vapor Propane and is manufactured with high-quality commercial-grade materials for safe and reliable performance. This unit comes equipped with a sound insulated, weather protective enclosure for outdoor installation. When used with the RSZ automatic transfer switch, this generator provides fully automatic operation for hassle-free use. The Onan RSZ 200 amp Automatic Transfer Switches work hand-in-hand with the RS30000 permanently installed, home standby generator. The transfer switch immediately senses when utility power has been interrupted, transferring responsibilities to the generator. When the utility power is restored, the transfer switch automatically transfers back to utility power, shutting down and instantly resetting itself for the next power interruption with no action required by the homeowner. Electrical connections must be made and fuel systems installed by qualified and licensed personnel. Improper installations present hazards, which can result in personal injury or property damage. Please contact a licensed residential electrician and your local Natural Gas or Propane supplier for these services Questions? Please call the Cummins Onan helpline @1-757-593-5293. Ask for the Consumer Product's Specialist. RS30000 Home Standby Generator: Click Here for Specifications Sheet Click Here for Owners Manual Runs on Natural Gas or LP Vapor Propane Rated amps: 125 Engine: Rugged 4-cycle industrial spark ignited engine High Motor Starting Reserve 150 amp engine driven battery charger 150 amp, UL Listed circuit breaker Voltage: 120/240 VAC, Single Phase, 1.0 pf Temperature Range of Operation: -10° F (-23.3° C) to + 104° F (+40° C) Battery: 12 volt, 325 CCA, Group 29NF or equivalent (not included) Very quiet operation: 67 dB(A) at 7 meters Lockable access doors Control features: Automatic Remote Start capable Control components designed to withstand the vibration levels typical in generator sets Field circuit breaker High temperature, Low oil pressure, Overcrank and Overspeed shutdown Running Time Meter DC control fuse Dimensions: 30" W x 85.3" L x 46.7" H Weight: 1300 lbs. Standard one-year comprehensive warranty Select the RS30000 comes with a 200 amp automatic transfer switch and can be configured for either natural gas or propane.