SURGE PROTECTOR BREAKER Will not burn your device,and keep your appliance safe with over-voltage surge protector breaker. HEAVY DUTY 4 x10 SJTW gauge cable can run the max wattage of 7500 watts,power of 30 Amp 125/250 volts,a good generator adapter for emergency using. CABLE SPLITTER L14-30P to 4 NEMA5-20R socket,1 cable to 4 way. WEATHER AND FIRE RESISTANCE This generator cable can be used indoor/outdoor for all weather and all season.We choose the good quality of 105℃ PVC with the FT-1 level fire resistance.And pure copper(5.26mm²) which will not let the cable get heat during the operation time. 1 YEAR QUALITY GUARANTEE AND 3 YEAR CUSTOMER SERVICE If you found any problem of our cable pls email us,we will feedback you in 24 hours.