Product Information

SCR controlled single phase chargers have many inherent advantages…voltage regulation, short circuit protection, low operating costs (a combination of high efficiency and high power factor), easy maintenance and high reliability.

The Micro ARE-S Series of scr controlled single phase chargers combines these inherent advantages with advanced rectifier, control and filter circuitry, and user-friendly operator interface.

Designed specifically for utility and communication applications, the Micro ARE-S Series scr controlled single phase chargers are easily adjusted to meet your specific operating requirements and will provide years of low maintenance service.

unipower-gold-seal
FIVE YEAR WARRANTY
Features and Options
  • Digital Controls with 4 button keypad allows for live charger setting and alarm adjustments
  • Floor, wall, and relay rack mounts are available on most models
  • Single-Phase 120, 208, 240 or 480VAC input
  • 48VDC with 6, 12, 30, or 50A output
  • 130VDC with 6, 12, 16, 25, 35, 50 or 75A output
  • Easy maintenance
  • Modular design of major components
  • Visual indicators with time delays to prevent nuisance alarms
  • Inherently Safe Design
  • Safety Agency Listed to UL 1012 and CSA 107.1

GENERAL SPECIFICATIONS

Input
Transformers are dual wound for either 120, 208, 240V (+10%, -12%) or 480V, single phase, (60Hz ±3Hz). ARE-S13050 is wound for 208, 240, and 480V; ARE-S13075 is wound for 240 and 480V.

Regulation
DC voltage is maintained within ±0.5 % at any load from no load to full load with +10%, -12% variation (or ANSI standard ranges) in the AC input voltage while floating the rated number of cells.
Control is accomplished with a single microprocessor-control board and can operate with or without a battery.
During normal operation, the maximum output voltage transient does not exceed 6% of the initial steady-state voltage for sudden load changes between 10% and 90% of rated output.
Recovery takes less than 300 milliseconds. Operation without a battery is stable under all conditions of line and load (within stated limits).
Turn-on under all conditions of line and load has a “soft-start” characteristic without overshoot.

Electrical Noise
For 48V models, the filtering provided produces a ripple level of less than 30mVrms with electrical noise less than 22dBrnc measured on a battery with an eight hour capacity rating of four times the rectifier current rating.
For 130V models, the filtering provided produces a ripple level of less than 100mVrms when connected to a battery with an eight hour capacity rating of four times the rectifier current rating.
The total dynamic response of the control circuitry permits all ARE-S rectifiers to operate as power supplies.

Current Limiting Circuit
The current limiting circuit is factory set at 110% of rated DC output but can be adjusted down to 50% and up to 110%.

Float & Equalize Voltages
Both the float and equalize voltages are user adjustable to accommodate different battery types. Float voltages are adjustable from 2.00-2.32 Volts per Cell (L.A.) and the Equalize voltage is adjustable to a maximum of 2.45 Volts per Cell (L.A.)

Temperature Compensation
The user-adjustable temperature compensation circuit will correct float and equalize voltages up to 2.0mV per cell (L.A.) per C° [added for temperatures below 77°F (25°C) and subtracted for temperatures above 77°F (25°C)].

Ambient Operating Temperatures
All ARE-S rectifiers will operate at 110% of rated DC output, continuously in temperatures from 32°F to 122°F (0°C to 50°C) up to an altitude of 3,000 ft (1,000 m). De-rating of 3.6°F (2°C) for every 990 ft (300 m) over 3,300 ft (1,000 m) above sea level. These units can be safely stored for up to one year at temperatures ranging from -40°F to 185°F (-40°C to 85°C).

Battery Eliminator Operation (Optional)
All ARE-S rectifiers will operate as a power supply without a battery at the following ripple levels:
• 48V models less than 30mVrms
• 130V models less than 100mVrms

Mechanical Features
• Door opens approximately 90° for easy access to interior
• The control board is mounted on the rear of the door for easy access
• The interface board is mounted behind the door for easy access
• Serviceable components are accessible and removable from the front
• Input and output connections are easily accessible
• Knockouts for cables are provided
• Cabinets can be relay rack, wall or floor mounted
• Cabinet has durable baked epoxy powder finish

Circuit Protection
• AC circuit breaker on input
• DC circuit breaker on output
• An AC power failure alarm relay provides one set of Form C contacts that operate in case of an AC failure

Standard Equipment
• AC circuit breaker, 10kAIC for 120/208/240V & 18kAIC for 480V
• DC circuit breaker, 50kAIC for 48 volt models and 10kAIC for 130 volt models
• High-input voltage shutdown
• Redundant high-output voltage shutdown
• Digital display, 2 line by 20 characters, shows voltage and current in normal operation at one percent accuracy
• Float and equalize settings are adjusted via keypad
• AC power failure alarm relay with one set of Form C contacts
• Rectifier failure alarm relay with one set of Form C contacts
• High Voltage Shutdown failure alarm with one set of Form C contacts
• Red and Green LEDs display status of charger
• Individual alarm LEDs
• Low Current (No-charge) alarm
• High DC voltage alarm
• Low DC voltage alarm
• Very Low DC voltage alarm
• Ground alarm detection alarm with cutoff switch
• Alarms have adjustable time delay, 1-300 seconds
• Manual Ground Fault Voltage Meter
• Proportional Load sharing
• Equalize timer, 0 to 255 hour

Optional Equipment
• Blocking diode
• Input lightning protection device
• Alarm board with individual Form C contacts for the Summary, GND +, GND -, LVA, HVA, LCA, HBTA, EQ, and two user defined relays
• Remote temperature probe for High battery temperature alarm
• DC output transient protection (MOVs)
• Higher interrupting AC breaker: 22kAIC & 42kAIC on 120/208/240V 25kAIC & 65kAIC on 480V
• Higher interrupting 42kAIC DC breaker on 130VDC
• Export packaging
• Drip top
• Battery eliminator
• Floor Stands

STANDARD 48VDC OUTPUT MODELS
ModelInput VoltageInput CurrentOutput CurrentDimension
H x W x D
inches (mm)
DC Circuit BreakerWeight
ARE-S04806120V
208V
240V
6.0A
3.5A
3.0A
6A12.25 x 17 x 15
(318 x 432 x 381)
10A104 lbs | 47 kg
ARE-S04812120V
208V
240V
12A
7A
6A
12A12.25 x 17 x 15
(318 x 432 x 381)
20A110 lbs | 50 kg
ARE-S04830120V
208V
240V
27A
16A
14A
30A17.5 x 17 x 17
(445 x 432 x 432)
40A168 lbs | 76 kg
ARE-S04850120V
208V
240V
40A
23A
20A
50A24.5 x 17 ix 15
(622 x 432 x 381)
70A235 lbs | 107 kg

STANDARD 130VDC OUTPUT MODELS
ModelInput VoltageInput CurrentOutput CurrentDimension
H x W x D
inches (mm)
DC Circuit BreakerWeight
ARE-S13006120VAC
208VAC
240VAC
14A
8A
7A
6A12.25 x 17 x 15
(318 x 432 x 381)
10A103lb | 47kg
ARE-S13012120VAC
208VAC
240VAC
25A
15A
13A
12A17.5 x 17 x 17
(445 x 432 x 432)
20A151lb | 65kg
ARE-S13012480VAC6.5A12A24.5 x 17 ix 15
(622 x 432 x 381)
20A181lb | 82kg
ARE-S13016120VAC
208VAC
240VAC
35A
20A
18A
16A17.5 x 17 x 17
(445 x 432 x 432)
20A170lb | 77kg
ARE-S13016480VAC9A16A24.5 x 17 ix 15
(622 x 432 x 381)
20A200lb | 91kg
ARE-S13025120VAC
208VAC
240VAC
48A
28A
24A
25A17.5 x 17 x 17
(445 x 432 x 432)
40A220lb | 100kg
ARE-S13025480VAC12A25A24.5 x 17 ix 15
(622 x 432 x 381)
40A250lb | 114kg
ARE-S13035120VAC
208VAC
240VAC
75A
43A
38A
35A24.5 x 17 ix 15
(622 x 432 x 381)
50A306lb | 139kg
ARE-S13035480VAC19A35A24.5 x 17 ix 15
(622 x 432 x 381)
50A306lb | 139kg
ARE-S13050120VAC
208VAC
240VAC
66A
57A
29A
50A30 x 20.5 x 19
(762 x 521 x 483)
70A404lb | 183kg
ARE-S13075240VAC
480VAC
80A
40A
75A30 x 20.5 x 19
(762 x 521 x 483)
100A468lb | 212kg