A. Portable 3000w pure sine wave inverter dc to ac off grid power converter supply by professional manufacture and supplier which has built over 10 years and developed with advanced equipment for the strict and standard process of produce with factory competitive price for the bulk orders,KOSUN converter have multi protections Protection feature(12V input inverter sample):
Input low voltage protection:when the battery voltage is below 10.5± 0.5Vbuzzer sount 2 times which indicates DC power supply voltage is descending and batteries need to recharge;
When input voltage is below 10.0±0.5v,buzzer sound 3 times and red light turn on,AC output will be automatically shut off.
Input over voltage protection:When input voltage reach 16.0v±0.5v,buzzer sound 4 times and red light turn on,the AC output will be shut off automatically;
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