Installation Instructions
2 
The AQDX series are UL Listed and have additional supervisory features: 
•  Battery disconnect relay when battery(s) are depleted 
•  Set of Form “C” relay contacts that indicate AC power failure 
•  Set of Form “C” relay contacts that indicate low battery(s) 
•  DC Output is Class II power limited 
•  Green LED for local “AC” on indication 
Depending on load, low battery trouble indicates 50–75% battery capacity remaining. Input wiring to the unit should be enclosed in conduit 
secured firmly to the enclosure. The AQDX cannot be used to power a mercantile bell. 
Specifications 
Model  AQD1  AQD2  AQD4  AQD6 
AC Input 
120 VAC (39W) 
120 / 240 VAC 
(112W) 
120 / 240 VAC 
(216W) 
120/240VAC (240W) 
AC Input Terminals  L,N,G – 3P Terminal Block with recessed hardware insulation accepts up to 12 AWG 
AC Frequency  60 Hz  50 to 60 Hz 
CAUTION: To prevent damage, the power supply board must be configured for the proper voltage before applying line voltage 
Note:  There is a removable link on the top of the power supply board. This link is cut and removed to convert to 240VAC. Once cut, 
there is no conversion back to 120 VAC 
DC Output Voltage Selection 
The jumper is located near the center of the power supply board and is marked "12V 24V" The 
jumper is moved to the appropriate pins to configure the output voltage 
CAUTION: To prevent damage, the DC load and battery(s) connections are removed before switching selector switch up or down. 
DC Outputs  1 output, 2 Pin terminal block 
Note: There is up to a 10 second delay for initial turn on 
Output voltage nominal  12VDC / 24VDC 
Output voltage typical  13.5 / 27.2 VDC  12.5 / 25.0 VDC 
Output range with rated load  13.5 / 27.2 VDC  12.5 / 25.0 VDC 
UL recorded range for compatibility 
on battery for 12 V configuration 
 9.26 – 13.2 VDC  9.7 – 13.2 VDC 
UL recorded range for compatibility 
on battery for 24 V configuration 
19.04 – 26.4 VDC  19.5 – 26.4 VDC 
Output continuous current rating  1A  2A  4A  6A 
Load regulation no load to max (no 
battery) 
±0.2% 
Current overload short circuit 
protection 
Yes  Yes  Yes  Yes 
Thermal runaway protection  Yes  Yes  Yes  Yes 
Power limited Output  Yes  Yes  Yes 
Only when used with 
PDB 
Note: Current overload and thermal shutdown will auto-restart without removing load 
Ambient operating temperature 
range 
-4F to +122F (-20C to +50C) 
Note: UL verified +32F to +120F (0C to +49C), not evaluated for outdoor use 
DC LED Indicator  Green 
Battery Charging  2 Pin terminal block marked "-BAT+" 
Caution: To avoid spark, AC must be applied before connecting battery cable to battery 
Fault reporting relay rating  <32VDC, <240VAC, 3A, resistive load only 
Note: The battery charger is precision set to float charge 12V or 24V sealed or wet lead acid batteries.  
 A 12-inch battery cable assembly is provided that plugs from module to battery: Red (+), Black (–) Neg. 
Battery(s), any type of lead acid   12V / 24V, 4 AH–72AH 
UL evaluated battery  7Ah  12Ah  18Ah  72Ah 
Battery(s) recharge   100 mA max  200 mA Max  500 mA max  700 mA max 




