AC Breaker Calculations

AC Input / Output Sizing

Inverters are equipped with an AC Input overload protection breaker (press button type) – Different rating for each model.
Obviously, if you are wanting to add your own breaker before this input, you would prefer your breaker to trip before the inverters’
Inverters are rated to supply at least 2 x their rated output for up to 5 sec,
The internal transfer switch is rated to handle this same 2x rated capacity.

Some simple math:

Watts / Volts (AC output) = Amps (A eternal unchanging law)

Example:

(1012LV-MS/MK)

1000W rated inverter / 120V output = 8.3A so 2 times this rating would be 16A, so a 16A breaker on the AC Input is perfect.
AC Output, if you wish to load up your inverter to 2x then install a 16A breaker at output, otherwise a 10A is perhaps a little wiser.

(2024LV-MK)

2000W / 120V = 16A to 32A (same rules apply as above)

(LV2424MSD/Hybrid)

2400W / 120V = 20A to 40A (ditto)

(3000TL/3048LV-MK)

3000W / 120V = 25A to 50A (ditto)

(LV5048 in Single Phase Mode)

5000W / 120V = 40A to 80A

(LV5048 in Split Phase mode – 2500W per phase)

2500W / 120V = 20A to 40A

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