FURMAN AR-1220 AC 20 Amp Line Voltage Regulator
The 20 amp AR-1220 AC Line Voltage Regulator is intended to protect audio, video, computer and other electronic equipment from problems caused by AC line voltage irregularities-sags, brownouts, or overvoltages that can cause sensitive digital equipment to malfunction, or, in extreme cases, to sustain damage.
The AR-1220 is designed to provide a steady, stable 120 VAC output. It accepts input voltages from 97V to 141V and transforms them to a constant 120V, ±5V. Voltages beyond that range may also be converted to usable levels, depending on how far out of range they are. The AR-1220 can handle loads totaling up to 20 amps as long as the input voltage is above 124 volts. For voltages below that level, its capacity must be derated at approximately .15 ampere per volt.
Delivers a stable 120 plus or minus 5 VAC whenever the input AC line voltage is between
97V and 141V
Output capacity 20 amps
Twelve 20A outlets on the back panel, two 15A outlets on the front
10-LED bar-graph Input Voltage meter
10-LED bar-graph Output Current meter
Extreme overvoltage/undervoltage causes instant shutdown, protecting equipment
Extreme Voltage Shutdown indicator LED
Output In Regulation indicator
Low stray magnetic field leakage