Power source (alternate) - Backup source used in the event of a mains failure. The connection time and the duration of the source depend on the type of source used. (back)
Current Drain - The current withdrawn from a battery during discharge.
Voltage Delay - Time delay for a battery to deliver the required operating voltage after it is placed under load.
Crest factor (Fc) - Ratio between the peak current value to the rms current value.
Cubicle (single UPS unit) - Cubicle containing a rectifier/charger, an inverter and a bypass. Connected to a battery, it operates alone, forming a single UPS. Compare with Cubicle (parallel UPS unit).
Charge - The conversion of electrical energy, provided in the form of electrical current from an external source, to restore the chemical energy in a cell or battery.
Thermostat - A temperature sensitive switch.
