Current (inrush) - Temporary current observed in a network when electrical devices are energized, generally due to the magnetic circuits of the devices. The effect is measured by the current's maximum peak value and the rms current value it generates.
Redundancy (active) - Parallel UPS configuration in which several UPS units with equal outputs are parallel connected and share the load. In the event one UPS unit fails, the other units pick up its share without any interruption in the supply of power to the load. (back)
Power Surge - Voltage above 110% of rated RMS voltage for one or more cycles.
Battery cells - The interconnected battery elements that supply electrical power created by electrolytic reaction.
Inverter (on-line) - UPS configuration in which the inverter is in series mounted between the mains and the load. All power drawn by the load passes via the inverter. This is the only configuration used for high outputs.
Ambient Humidity - The average humidity of the surroundings.
Wall-less Design - A battery design where the structural support for the cells is formed by an open plastic framework.
