capacity: 2Kva-40Kva Surge surpression ,fiter dangerous voltage and protect the electric equipment. remote turn-off and self diagnosis. advanced SPWM technology for inverter output structural optimization comprehensive function and protection parallel redundant up to 8 units design to be easy servicing user friendly human-machine interface network monitor management Specification: Model:JY20L,JY30L,JY50L,JY60L,JY100L,JY100L31,JY150L31,JY200L31,JY300L31 Max/Rated Capacity:2KVA / 1.6KW;3KVA / 2.4KW;5KVA / 4KW;6KVA / 4.8KW;10KVA / 8KW;10KVA / 8KW;15KVA / 12KW;20KVA / 16KW;30KVA / 24KW INPUT:110Vac / 220Vac for single phase; 200Vac / 380Vac for three phase "31" of model stand for three phase in ,one phase out. OUTPUT:110Vac / 220Vac pure sine wave Transfer Time: < 2ms Crest Ratio:> 3:1 Harmonic Distortion:< 3% ( Linear Full Load ) Efficiency:> 85% Overload:> 120% for 10 Minutes ; >150% for 30 Seconds Short Circuit:Electronic Circuit Self-Protection DC-Start/auto-restart :yes Noise:< 50dB (at 1 meter ) CommunicationPort:True RS 232 Interface or DB9 /optional SNMP card JY20S:MEAS:230í-624í-592(mm) Weight:60kgs