1)Can be adjusted to 60 HZ; 120 V 60 Hz on request
2) Protection key:
– output short circuit
– overload
– battery voltage too high
– battery voltage too low
– temperature too high
– 230 VAC on inverter output
– input voltage ripple too high
3) Non-linear load, crest factor 3:1
4) At 25˚C ambient
5) Switches off when no external AC source available