A three-phase, silicon-controlled unit for utility, industrial and other standby applications.
Simplified operation, minimum maintenance, long and economical service are a few of the advantages you get with a three-phase, high-power ARR-M charger.
Electrical and mechanical design features make it ideal for a wide variety of utility, industrial and other standby power supply applications.
 

• Microprocessor Controlled
• Digital Metering
• Simultaneous Voltage & Current Readings
• 24, 48, 125 & 250 volt models
• 25A to 500A models
• Listed to UL/CSA
• CE safety and EMC standards tested and compliant
• Designed to NEMA PE5 standard insures reliable performance under real world conditions
• Listed to UL/ANSI 1012
• NEMA PE5 compliant
• CSA C22.2 107.1 certified and applicable IEC standard compliant
• Low Maintenance
• Common control board for all output voltages and current ratings reduce spares requirements and simplifies maintenance.
• Remote Communications - MODBUS & DNP3
• User definable control and alarm set points
• Temperature Compensation
• High efficiency & power factor
• Design provides for reliable power requirements on or off the battery

• Bright digital display with 2 lines by 20 characters
• System voltage and current are displayed at .5% accuracy
• High-output voltage shutdown with redundancy
• Float and equalize settings are keypad adjustable
• 0 to 4095 hour equalize timer
• Red and Green LEDs display overall status of charger
• AC power failure alarm relay with one set of form C contacts
• Rectifier failure alarm with one set of form C contacts
• High Voltage Shutdown alarm with one set of form C contacts
• No-charge alarm with load sharing circuitry
• Ground fault detection alarm
• High DC voltage alarm
• Low DC voltage alarm
• Alarms provide independently adjusted settings for alarm level and time delay

• Control board mounted on backside of door for easy access
• Serviceable components are accessible and removable from the front
• All input and output connections are designed for easy access
• Convenient cable knockouts are provided
• Cabinets are floor mounted and provide a 3 inch clearance at the bottom to facilitate handling by a lift truck or pallet truck
• Baked epoxy finish for corrosion protection
• Natural convection cooling up to 100A output current; forced air assisted cooling for units above 100A output current

• Remote temperature probe
• Communication module
• Blocking diode
• Lightning protection
• DC Breaker
• Ground alarm detection with cutoff switch
• DC output protection (MOVs)
• High capacity AC breaker
• High interrupting Current DC breaker
• Individual Form C Alarm Contacts
• Remote Communications (MODBUS/DNP3)
• Input voltage and current monitoring
• Metering
• Temperature Compensation
• Blocking Diodes
• Load Sharing
• Ground Fault Lamps with Relays & Test Switch
• Drip top

* Contact Applications Engineering for product ratings not listed.

Standard Inputs: 208, 240, 480 VAC, three phase, 60 Hz, 6-Pulse, Filtered output.
Optional 575, 600 VAC, and other 3-Phase Input Voltages are available
50 HZ models available on select models - Contact Applications Engineering
12-Pulse models available for 60 Hz and 50 Hz - Contact Applications Engineering

DC float voltage is maintained within ± 0.5 percent from no load to full load with input frequency variations of ±5 percent and with AC input voltage variation of +10%/-12% of the nominal input voltage.
During operation the maximum output 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.

The current limiting circuit is factory set at 110 percent and is adjustable from 20 percent up to 120 percent of rated output. It will hold down to short circuit.

Nominal ripple when connected to a battery rated four times the charger output current rating:

• 24V & 48V Models – 30mV (15mV available with extra filtering)
• 125V Models – 100mV (30mV available with extra filtering)
• 250V Models – 200mV (150mV available with extra filtering)

The ARR-M product series can be operated on a principally resistive load with the battery disconnected for maintenance purposes.

A three pole AC input circuit breaker is provided on all models. A single pole DC fuse is provided in the positive leg of the DC output (circuit breakers are available).

All ARR-M Series rectifiers will operate at 110% of rated DC output, in temperatures from 32°F to 122°F (0°C to 50°C) up to an altitude of 3,000 ft (1,000 m) above sea-level. Performance is further de-rated at a rate of 3.6°F (2°C) for every 990 ft (300 m) over 3,300 ft (1,000 m).

These products can be safely stored for up to 1 year at temperatures ranging from -40°F to 185°F (-40°C to 85°C).