... electric generator 1)CE,ISO,CCC, 2)50/60hz,400V,Class H,IP23 2)famous engine and alternator:Wudong,Leroysomer,etc open diesel electric generator ... , Marathon, Leroy Somer are optional.5) Frequency:50/60HZ6) Protection:IP237) Insulation: Class H8) 8hrs ... closed water-cooled or forced air cooled3) electric start or manual start4) Direct combustion chamber5) ... , CCC, GB/T2820, open diesel electric generator