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TechWriter's avatar
TechWriter
Explorer
Jul 31, 2020

Pulling more than 50 amps ?

Our park electrician says that some of the big rigs with 3 ACs and electric everything can sometimes draw more than 50A from a 50A pedestal.

Truth or BS?
  • Three? Each is maybe 16 max so even 4 would pull only 32 per side max.
    Licensed electrician or handy man?
  • fcooper wrote:
    100 amps available....50 amps per leg x 2 legs...so answer is yes


    fcooper is right. You are not thinking about how a 50 amp / 240 Volt system works.

    You have 2 120 volt legs with 50 amps available on each leg not 25 amps on each leg. 50 + 50 =100 amps of 120 volt power.
  • i've heard of but not seen in person RVs with 100-amp service. connected to a 50-amp post i believe the most a rig like thar could draw would be a bit less than 50-amps else the post CB would trip.
  • 100 amps available....50 amps per leg x 2 legs...so answer is yes

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