Model		DD6S	DD10S	DD15S	DD20S
Capacity(VA)		6KVA	10KVA	15KVA	20KVA
Operating principle		Pure sine wave dual conversion on-line
AC Input	Phase	single-phase L+N+G
	Voltage	220V±5%
	Frequency	50HZ or 60HZ+5%
DC Input	Rated DC voltage	192VDC
	Floating voltage	218VDC
	Cut-off voltage	168VDC
	Charging time again	<16 hours
	Type	Maintenance free lead-acid battery
	Back up time	Base on the quantity and capacity of battery
AC Output	Phase	single-phase L+N+G
	Voltage	220VAC±2%( stable load), 220VAC±5%(fluctuant load))
	Frequency	50Hz±0.5%(Under battery unlocked)
	Power factor	0.8,LAG
	Wave-form	Sine wave
	Voltage Distortion	linear load <3%，non-linear load <5%
	Output voltage	±5%( Load abrupt change From 0 to 100%)
	Transient response	<2ms
	Crest factor	3:01
	Overload protection	>125%,1min;>150%,200ms
System specificat-ion	Full load efficiency	≥90%
	Transfer time	City electricity interrupted 0ms;bypass transfer time<2ms
	Protection	Overload, over charge and over discharge; out the range of voltage and frequency, over current, short circiut, over temperature ect.
	Display	LCD and LED indicator
	Communication	RS232 interface and SNMP card(optional)
	Environment	0~40'C
	Relative ambient	20~95%(Non-condensing)
	Noise (dB)	<58dB
Size (L*W*H)mm		540*240*680	640*330*940		720*410*990
Package(L*W*H)mm		600*300*830	700*390*1100		780*470*1150
N.W./ G.W (KG)		32.5/40	60/66	72.5/79	80/86