ITEM  | MODEL  | C1KR/C1KRS  | C2KR/C2KRS  | C3KR/C3KRS  | C6KR/C6KRS  | C10KR/C10KRS  | 
Capacity  | VA/W  | 1kVA / 0.7kW  | 2kVA / 1.4kW  | 3kVA / 2.1kW  | 6kVA / 4.2kW  | 10kVA / 7kW  | 
Input  | Nominal Voltage  | 220 or 110VAC  | 220VAC  | 
Voltage Range  | 115 ~ 300VAC  | 176 ~ 276VAC  | 
Frequency Range  | 50 or 60 �� 10HZ  | 46 ~ 54Hz  | 
Power Factor  | 0.97  | 0.98  | 
Output  | Voltage  | 220 or 110VAC �� 2%  | 220VAC �� 1%  | 
50 or 60 �� 0.2Hz ( Battery mode)  | 50Hz �� 0.05Hz ( Battery mode)  | 
Waveform  | Pure sine wave  | 
Overload Capability  | 108%~150% for 30 sec., 150% for 300 ms  | 105%~130% for 10 min., 130% for 1 min  | 
Current Crest Ratio  | 3:01  | 
Bypass  | Automatic Transfer  | on overload and UPS failure  | 
Before UPS Power-on  | Default ��NO��, user adjustable to ��YES��  | Yes  | 
Transfer Time  | 0 ms; less than 4 ms from inverter to bypass and vice versa  | Zero  | 
LED indicators  | Status  | Load level / Battery level, Battery , Utility Power, Inverter, Bypass,  | 
Audible Alarm  | Bypass, On battery mode, Battery low, Overload, Fault  | 
Communications  | RS-232 Serial Interface  | 
Intelligent Slot;  | 
OPTIONS: (WEBPOWER SNMP/WEB card, AS400 card or WinPower CMC)  | 
Network Surge Protection  | RJ45 I/O port available for network or Fax/Modem  | 
REMARK  | C*KR is standard type. C*KRS are longer time type  |