User Manual
17Rack ATS AP44xx Installation and Quick Start
Configure Voltage Transfer Range
The voltage transfer range determines the switching behavior for the Rack ATS based on source
voltage. When the source voltage moves outside the specified range, the Rack ATS switches to the
secondary power source. You can configure Narrow, Medium, or Wide voltage ranges and then set the
ATS to the desired range.
The Rack ATS can be set to Narrow, Medium, or Wide voltage ranges, depending on the power
conditions of your system. The default setting is Wide.
*220 V Korea only.
NOTE: The voltage transfer range must remain within the absolute maximum ratings of the Rack ATS:
85–265 VRMS. At any source voltage below 85 VRMS or above 265 VRMS, the Rack ATS will switch
power sources regardless of configuration.
DANGER
HAZARDOUS VOLTAGE
Do not operate the Rack ATS outside Rated Voltage (+/- 10%). Voltage ranges in the
table represent software control of switching behavior, not input voltages for use.
Failure to follow these instructions will result in death or serious injury
.
SKU
Rated Voltage
(L-N) (VAC)
Configurable
Ranges (VAC)
Narrow Default
Range (VAC)
Medium Default
Range (VAC)
Wide Default
Range (VAC)
AP4421 230 ± 16–25 ± 16 ± 20 ± 25
AP4422 230 ± 16–25 ± 16 ± 20 ± 25
AP4423 230* ± 16–25 ± 16 ± 20 ± 25
AP4424 230* ± 16–25 ± 16 ± 20 ± 25
AP4430 200/208 ± 15–30 ± 15 ± 22 ± 30
AP4431 208 ± 15–30 ± 15 ± 22 ± 30
AP4432 200/208 ± 15–30 ± 15 ± 22 ± 30
AP4433 208 ± 15–30 ± 15 ± 22 ± 30
AP4434 208 ± 15–30 ± 15 ± 22 ± 30
AP4450 100/120 ± 10–23 ± 10 ± 16 ± 23
AP4452 120 ± 10–23 ± 10 ± 16 ± 23
AP4452J 100 ± 10–15 ± 10 ± 12 ± 15
AP4453 120 ± 10–23 ± 10 ± 16 ± 23










