About Product:Product attributes brand YSH protection type circuit breaker application scope below 4500W adapter line length/communication protocol 485 external battery type lead-acid battery or lithium battery product certification CE weight 10KG overall size 440*275 * 85mm working efficiency 93% warranty warranty one year protection level IP20 cooling type fan anti-counterfeiting code/working environment normal temperature product series HGX display mode LCD item No. HGX 4.5KW