Long Backup Low Frequency Online UPS Power Supply 6-20kVA

Long Backup Low Frequency Online UPS Power Supply 6-20kVA. Double Conversion On-line Design: Real double conversion on-line high-performance power frequency sine wave UPS for industrial environments. Wide Input Voltage Range: Accepts input voltage from 165V to 275V with frequency range of 45Hz to 66Hz. Zero Transfer Time: Provides seamless power transition with 0ms transfer time for critical equipment protection. Optional External Battery Pack: Supports external battery packs to extend backup time freely beyond the standard 10 minutes. Advanced Communication Options: Includes RS232 port with optional SNMP, USB, and dry contact for network monitoring. High Reliability IGBT Inverter: Features IGBT inverter and output isolation transformer for superior performance and safety. Sine Wave Output: Delivers pure sine wave output with THD less than 3% and 0.8/0.9 power factor. Comprehensive Protection: Includes over-voltage, under-voltage, overload, short circuit, and over-temperature protection.