Uninterruptible Power Supplies - EPO Operations

The primary reason for having this feature is to enable the UPS system to be 'made safe' in the event of an emergency. Operation of the Emergency Power Off will, with most uninterruptible power supplies, stop the inverter and rectifier (charger) and disconnect the battery. Due to the economics of size and cost, in a number of cases operation of the EPO circuit may just stop the inverter. A typical example of a situation when there is a need to remove power to equipment in an emergency situation

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