Micro
ARE-M Series 24V Chargers, Single Phase
Introduction
PM990-1070-24, Issue 12
1-7
General
AC Voltage Range ............................. The AC supply voltage specified in Model Specific and Related
Specifications must be within the following ranges:
Nominal Voltage
Minimum Voltage
Maximum Voltage
120 Vac
106 Vac
132 Vac
208 Vac
184 Vac
228 Vac
240 Vac
212 Vac
264 Vac
480 Vac
424 Vac
528 Vac
Power Factor (Resistive Load) .......... >0.92 at full load
Efficiency (Resistive Load) ............... >87%
DC Regulation
Static
Float ......................................... ±0.5% with a fixed load and simultaneous variations
Equalize ................................... ±1.0% with a fixed load and simultaneous variations
1
Dynamic ....................................... ±6% for a step load change of 10 to 90% or 90 to 10% of rated
current; Charger will recover to regulation range within 300
milliseconds; transient behavior will disappear within 500
milliseconds.
Current Limiting
Factory Setting ........................... 110% of full rated load
Field Settable ............................. 80-110% of full rated load
Continuous Operation ................ 110% of full rated load maximum
Surge Protection................................. Optional MOVs (metal-oxide varistors) on output terminals
Optional Lightning arrestor on input terminals
Current Walk-In (Soft Start) .............. Less than 15 seconds for output current increase from 0-100%
Alarms
Standard Interface Board ................... 3 alarm relay outputs: AC Fail, Rectifier Fail, and HVSD
Multiple Alarm Interface Board ........ 9 alarm relay outputs: Summary, GND+, GND-, LVA, HVA,
NCA, AC Fail, Rectifier Fail, and HVSD
Alarm Indicators
Front Panel ................................. Common red alarm LED and 2-Line LCD display
Optional Indicators..................... Optional front panel indicators, consisting of a red High Voltage
LED, red Low Voltage LED, red No Charger LED, yellow AC
Fail LED on the telecom models, and two additional green
Positive and Negative Ground LEDs on the utility models.
Alarm Relay Contacts ................ Form C, 2A @ 30 Vdc; 0.6A @ 110 Vdc; 0.6A @ 125 Vac
Customer Connections
Connector ................................... One plug-in 3-position terminal block per alarm, compression-
style wire clamp
Wire Size .................................... 12-28 AWG (2.5-0.08 mm
2
)
1
Load, input voltage, frequency, and temperature varied within range for that model. The Float and Equalize voltage regulation
excludes any voltage drop from the blocking diode, if present.
