Input voltage rating: 230/240/110/120VAC +/- 10%Output power: 50VA to 1000VAVoltage resistance: 30 KVA maximumFrequency range: 50/60Hz +/- 1HzVoltage unbalance: not exceeding +/- 2% maximum of any windingEfficiency: >/=90%Operating temperature range: -25 to 50 degrees CelsiusCore material: 30ZH120 (Japan silicon steel)Less flux leakageLow exciting currentLess heat generationNo humming noiseThinner and lighterInsulation systems: class EWidely used in:PHS transmit stations, relay stationsPAS transmit stationsCommunication instruments As one of the largest manufacturer of transformer, we specialized in producing R-core series products, toroidal transformer, electronic transformer, electricity supply transformer, power supply and so on. Welcome to contact us for more details.