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Feb. 1, 2008  | Electrical Construction and Maintenance
Double-conversion UPS The Digital Energy LP-33U Series double-conversion UPS with true online voltage and frequency-independent operation provides 97% system efficiency, according to the company. Available in 10kVA to 60kVA ratings, the UPS incorporates Redundant Parallel Technology, enabling up to four units to be paralleled. Additional product features include a high input factor of greater than

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