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Inverters and AC Out

  • 22-05-2023 11:14am
    #1
    ajnorth
    Registered Users, Registered Users 2 Posts: 4 ✭


    Hi

    I've been looking for an answer to this question but haven't seen it posted anywhere.

    Most of the conversations on inverters is about kW, does the amp output matter? So if I have 5kW inverter that has AC output of 40a will that inverter be able to draw power from batteries to power the whole house if the draw goes about 40a?



Comments

  • #2
    graememk
    Moderators, Home & Garden Moderators Posts: 6,634 Mod ✭✭✭✭graememk


    Power (kW) = voltage (V) x Current (A)

    Generally the power rating is the max output.

    My inventer has a max output of 27.3 amps. But it won't pass 6kw.

    If the grid voltage is at 240v, it will only output 25 amps.


    If the 40 amps is to do with batteries, then it's the voltage of the battery that will determine the power output.

    What inverter are you looking at?



  • #3
    ajnorth
    Registered Users, Registered Users 2 Posts: 4 ✭ajnorth


    I've been looking at the cheap Y&H 10kW hybrid inverter, and I've attached the datasheet, or for the sake of peace of mind a Victron Multiplus ii 5000.

    S4bebb0e8b3f445f49bcf90b92e43e3f9Y.jpg

    The batteries, for sake of the post Pylontech US5000, or something similar from Aliexpress. I think I found my answer in the battery discharge rate 2400W, running through the inverter they do is 10a at 240v, but can peak for 20a over 5 minutes



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