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/3 Phase

Welder Generators

Standby Generators

Motor Starting

 

Try our Power Calculators for quick conversions and formulas

 

Single / 3 Phase Loads    Amps Single Phase      Amps Three Phase       Generator   Fuel   Size   1 Wire   4 Wire   ZigZag          kW     kVA     120V     240V     120V     240V     120V     240V     208V     240V     480V    GA-2.5H    Gas    2.5  18.3  TPG3-3000HDX    Gas    2.9  18.3  GA-3.6HA    Gas    3.6  26.6 13.3  TPG3-4500HDX    Gas    4.5  27.5 15.8  DL6000I    Gas    6  22.9  TPG3-6000HDX    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  TPG3-7000HDXE    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-7000SSA    Diesel (Tier 4)    7  50 25  DCA-10SPX4C    Diesel (Tier IV)    11  41.7 41.7  TLG-12SPX4C    Diesel (Tier IV)    13  50 50  DCA-15SPX4C    Diesel (Tier IV)    16.5  65.5 62.5  DCA-20SPXU2    Diesel (Tier IV)    22  83 83  DCA-36SPXU2    Diesel (Tier IV)    37.8  150 150  DCA-56SPXU2    Diesel (Tier III)    58.8  233 233  DCA-25SSIU3C    Diesel (Tier IV)    22  25  60 55.5 27.8 60 60  30   DCA-45SSIU4C    Diesel (Tier IV)    37  45  108 100 50 108 108  54   DCA-70SSIU2C    Diesel (Tier III)    59  70  168 155.5 77.8 168 168  84   DCA-125SSIUC    Diesel (Tier III)    110  125  301 277.8 138.9 301 150  180   DCA-150SSJU3C    Diesel (Tier III)    132  150  361 333.3 166.7 361 361  180   DCA-180SSJUC    Diesel (Tier III)    158  180  400 200 433  216   DCA-220SSJUC    Diesel (Tier III)    194  220  488.9 244.4 529  265   DCA-300SSK4C    Diesel (Tier III)    264  300  666.7 333.3 722  361   DCA-400SSIC    Diesel (Tier III)    352  400  888.9 444.4 962  481   DCA-600SSVC    Diesel (Tier II)    528  600  1333.3 666.7 14,43  721   DCA-800SSK2C    Diesel (Tier II)    704  800  1777.8 888.9 1924  962   DCA-25USI2C    Diesel (Tier IV)    22  25  55.6 27.8 60 60  30   DCA-45USI2C    Diesel (Tier IV)    37  45  100 50 108 108  54   DCA-70USI2C    Diesel (Tier III)    59  70  155.5 77.8 168 168  84   DCA-85USJ2C    Diesel (Tier 3)    70  88  183.3 91.6 250 197  99   DCA-125USIC    Diesel (Tier 3)    110  125  277.8 138.9 301 301  150   DCA-150USJ2C    Diesel (Tier 2)    132  150  333.3 166.7 361 361  180   EGS-250H    Diesel    37.5  250 166 83  36   EGS-500C3    Diesel    75  500 500 167  72   EGS-700VC3    Diesel    100  700 500 233  101   EGS-1200C3    Diesel    150  1200 800 400  173   EGS-1400C3    Diesel    210  1400 933 466  202   EGS-1600C3H    Diesel    240  1600 1066 533  231   EGS-1800C3H    Diesel    268  1800 1200 600  230   EGS-2400C3H    Diesel    356  2400 1600 800  346    kW     kVA     120V     240V     120V     240V     120V     240V     208V     240V     480V    Generator   Fuel   Size   1 Wire   4 Wire   ZigZag           Amps Single Phase      Amps Three Phase

Welder Generators Power Specs Model # Fuel kW Generator Amps Welder Amps 120V 240V BDW180MC 180 GAW135H Gas 1.5 15 135 GAW180HE Gas 3 25 180 SDW-225SSA Diesel 6 50 25 225 DLW-300ESA Diesel 10.5 87 44 300 DLW-400SSA Diesel 14 116 58 400 Dual DAW-500SA Diesel 3 25 25 500

Standby Generators Generator Size Single Phase Amps Three Phase Amps   kW 240V (4 wire) 208V 240V 480V MQP20IZ 20 69 60 30 MQP30IZ 30 104 90 45 MQP40IZ 40 138 120 60 MQP50IV 50 173 150 75 MQP60IV 60 208 180 90 MQP80IV 80 178 241 120 MQP100IV 100 347 301 150 MQP125IV 125 434 376 188 MQP150IV 150 520 451 226 MQP175IV 175 607 526 263 MQP200IV 200 694 601 301 MQP250IV 250 867 752 376 MQP300IV 300 1041 902 451 MQP350IV 350 1214 1052 526 MQP450VO 450 1561 1353 677 MQP500VO 500 1735 1504 752 MQP550VO 550 1908 1654 827 MQP600VO 600 2082 1804 902

 

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.