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POWER Castle Series 6-20KVA, excellent quality UPS Introduction: Power Castle 6K-20Kva, single phase, 3/1phase, is a powerful product range with high adaptability and flexibility. Its cut-edge digital control technology of DSP (Digital Signal Processor), can greatly improve the product performance and system reliability, and deliver a compact integration with higher power density. Tailored for AC Grid Environment Output power factor up to 0.8 – applicable to the tendency of