Size single and three phase generators whether it's a portable or a big generator. For product information click on the links to the right to find gas generators, diesel generators, light towers, or welder generators. Available for online purchase with free shipping, tracking info, and great customer service.

 
Generator Sizing

  

Single Phase Three Phase Welder Generators Standby Generators Motor Starting

 

Try our Power Calculators for quick conversions and formulas

 

Single Phase Loads Amps Generator Fuel Size 1 Wire at 2 Wire at 3 Wire at kW 120V 240V 120V 120V 240V GA-2.5H Gas 2.5 18.3 TPG-2900H-DX Gas 2.9 18.3 GA-3.6HA Gas 3.6 26.6 13.3 GEN4065 Gas 4 10 TPG-4300H-DX Gas 4.3 27.5 13.8 DL6000I Gas 6 22.9 TPG-6000H-DX Gas 6 39.2 19.6 HPS6000HE Tri-Fuel 6 45.8 22.9 GA-6HA Gas 6 41.6 20.8 GA-6HEA Gas 6 41.6 20.8 TPG-7000H-DXE Gas 7 45.8 22.9 HPS9000E Tri-Fuel 9 66.7 33.3 GA-9.7HE Gas 9.7 70 35 HPS12000HE Tri-Fuel 12 45 DA-7000SSW Diesel 7 50 25 DA-7000SSA Diesel 7 50 25 DCA-10SPX3C Diesel 10.5 41.7 41.7 DCA-15SPX3C Diesel 16.5 62.5 65.5 DCA-25SSIU2C Diesel 22 60 60 55.5 27.8 DCA-25USIC Diesel 22 60 60 55.6 27.8 EGS-250V Diesel 30 83.3 41.6 DCA-45SSIU3C Diesel 37 108 108 100 50 DCA-45USIC Diesel 37 108 108 100 50 DCA-70SSIUC Diesel 61 168 168 155.5 77.8 DCA-70USIC Diesel 59 155.5 77.8 EGS-500C Diesel 60 166.6 83.3 DCA-85USJC Diesel 70 250 250 182.2 91.2 EGS-800V Diesel 100 277.6 138.6 DCA-125USJC Diesel 110 301 301 277.8 138.9 DCA-150SSJU3C Diesel 132 361 361 333.3 166.7 DCA-150USJ2C Diesel 132 361 361 333.3 166.7 EGS-1400V Diesel 175 486 243 DCA-220SSJC Diesel 194 488.9 244.4 DCA-300SSK4C Diesel 264 666.7 333.3 EGS-2400V Diesel 283 777.6 388.83 DCA-400SSVUC Diesel 352 888.9 444.4 DCA-600SSVC Diesel 528 1333.3 666.7 DCA-800SSKC Diesel 704 1777.8 888.9

Three Phase Loads Generator Fuel Size Amps kVA kW 208V 240V 480V DCA-25SSIU2C Diesel 25 22 60 30 DCA-25USIC Diesel 25 22 60 30 EGS-250V Diesel 37.5 30 104 45 DCA-45SSIU3C Diesel 45 37 108 54 DCA-45USIC Diesel 45 37 108 54 DCA-70SSIUC Diesel 70 61 168 84 DCA-70USIC Diesel 70 59 168 84 EGS-500C Diesel 75 60 208 90 DCA-85USJC Diesel 82 70 197 99 EGS-800V Diesel 125 100 347 150 DCA-125USJC Diesel 125 110 301 150 DCA-150SSJU3C Diesel 150 132 361 180 DCA-150USJ2C Diesel 150 132 361 180 EGS-1400V Diesel 219 175 607 263 DCA-220SSJC Diesel 220 194 529 265 DCA-300SSK4C Diesel 300 264 722 361 EGS-2400V Diesel 354 283 982 426 DCA-400SSVUC Diesel 400 352 962 481 DCA-600SSVC Diesel 600 528 1443 721 DCA-800SSKC Diesel 800 704 1924 962 EGC-500V-20 Diesel 500 1822 789 EGC-750DD-20 Diesel 750 2602 1128 EGC-1000DD-20 Diesel 1000 1504 EGC-1500C-20 Diesel 1500 2258 EGC-750DD Diesel 750 2602 1128 EGC-1000DD Diesel 1000 1504 EGC-1500C Diesel 1500 2258

Welder Generators Power Specs Model # Fuel kW Generator Amps Welder Amps 120V 240V GAW135H Gas 1.5 15 135 GAW180HE Gas 3 25 180 SDW-225SS Diesel 6 50 25 225 DLW-300ES Diesel 10.5 87 44 300 DLW-400SS Diesel 14 116 58 400 Dual DAW-500S Diesel 3 25 25 500

Standby Generators Generator Size Single Phase Amps Three Phase Amps   kW 240V (3 wire) 208V 240V 480V KD75V 75 250 260 226 113 KD100V 100 275 347 301 150 KD115V 115 313 399 346 173 KD150V 150 333 520 451 226 KD175V 175 542 607 526 263 KD200V 200 633 694 601 301 KD250V 250 867 752 376 KD300V 300 1041 902 453 KD350V 350 1214 1052 526 KD400V 400 1388 1203 601 KD450V 450 1561 1353 677 KD500V 500 1735 1503 752

Motor Starting

Large motors require a much larger amount of electricity to get started
than they need once they are running.  To determine this amount, find the HP of your electric motor below and locate the starting kVA's.  

For multiple motors, If you are sizing a generator to start multiple motors you first need to know if all the motors are going to start at the same time or if they can be started one at a time. If they all need to start at the same time, you need to locate the starting kW or kVA for EACH motor and add them together.  The generator you need to get them all running MUST be this large.  If you can actually start these motors sequentially (one after another)
you can save a lot of money.

For sequential starting take the largest motor first and determine what it takes to start it.  Then add the Running kVA of the largest motor to the starting kVA of the second motor, and determine what it takes to run the first and start the second. Continue this process until all motors are started.