UNIPOWER Micro ARE-S Series SCR Controlled Single Phase Chargers

Unipower Micro ARE-S Series 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. Alpine Power Systems is an approved distributor of Unipower Micro ARE-S Series Chargers.

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. The Micro ARE-S Series chargers have a 5 Year Warranty.

Micro ARE-S Series Features & 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

Micro ARE-S Series 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 MODELSModelInput VoltageInput CurrentOutput CurrentDimension

H x W x D

inches (mm)DC Circuit BreakerWeightARE-S04806120V

208V

240V6.0A

3.5A

3.0A6A12.25 x 17 x 15

(318 x 432 x 381)10A104 lbs | 47 kgARE-S04812120V

208V

240V12A

7A

6A12A12.25 x 17 x 15

(318 x 432 x 381)20A110 lbs | 50 kgARE-S04830120V

208V

240V27A

16A

14A30A17.5 x 17 x 17

(445 x 432 x 432)40A168 lbs | 76 kgARE-S04850120V

208V

240V40A

23A

20A50A24.5 x 17 ix 15

(622 x 432 x 381)70A235 lbs | 107 kgSTANDARD 130VDC OUTPUT MODELSModelInput VoltageInput CurrentOutput CurrentDimension

H x W x D

inches (mm)DC Circuit BreakerWeightARE-S13006120VAC

208VAC

240VAC14A

8A

7A6A12.25 x 17 x 15

(318 x 432 x 381)10A103lb | 47kgARE-S13012120VAC

208VAC

240VAC25A

15A

13A12A17.5 x 17 x 17

(445 x 432 x 432)20A151lb | 65kgARE-S13012480VAC6.5A12A24.5 x 17 ix 15

(622 x 432 x 381)20A181lb | 82kgARE-S13016120VAC

208VAC

240VAC35A

20A

18A16A17.5 x 17 x 17

(445 x 432 x 432)20A170lb | 77kgARE-S13016480VAC9A16A24.5 x 17 ix 15

(622 x 432 x 381)20A200lb | 91kgARE-S13025120VAC

208VAC

240VAC48A

28A

24A25A17.5 x 17 x 17

(445 x 432 x 432)40A220lb | 100kgARE-S13025480VAC12A25A24.5 x 17 ix 15

(622 x 432 x 381)40A250lb | 114kgARE-S13035120VAC

208VAC

240VAC75A

43A

38A35A24.5 x 17 ix 15

(622 x 432 x 381)50A306lb | 139kgARE-S13035480VAC19A35A24.5 x 17 ix 15

(622 x 432 x 381)50A306lb | 139kgARE-S13050120VAC

208VAC

240VAC66A

57A

29A50A30 x 20.5 x 19

(762 x 521 x 483)70A404lb | 183kgARE-S13075240VAC

480VAC80A

40A75A30 x 20.5 x 19

(762 x 521 x 483)100A468lb | 212kg

Alpine Power Systems is a value-added reseller of UNIPOWER products. Alpine can provide DC Power System services on all UNIPOWER products including engineering, installation, preventative maintenance, monitoring and recycling. Since 1963, working with Alpine Power gives you the Ultimate Advantage. Contact us today for pricing and technical inquiries.