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RTB

Battery Charger and Rectifier
50-2000 A 3ph

Borri RTB range of Industrial Thyristor Controlled 3-Phase Battery Chargers are designed and built for the harshest conditions and to provide high reliability power supply and battery charging capability. Using a powerful microprocessor to control all the functions provides reliable operations with ease of settings and communication.

Built with a rugged thyristor-controlled rectifier bridge suitable for charging nickel-cadmium or lead acid batteries while simultaneously supplying DC loads. It can also be used without batteries as a direct power supply.

  • Proven microprocessor control.
  • Large LCD panel with mimic panel and history.
  • Wide selection of alarms, indications and measurements.
  • Electronic battery and charger output current limit.
  • Rugged thyristor bridge with isolation transformer.
  • Communication ports and potential free contacts.
  • 4 level battery charging including manual charge.
  • High MTBF and low MTTR.
  • 20 programable alarm and status LEDs.
  • Operates with Nickel-cadmium (vented/ gas recombination) and Lead acid batteries (vented/ gas recombination).
  • Advanced Battery Management.
  • Flexible in-built features.
  • Operation without battery (Rectifier).
  • Highly customizable.
  • Easy maintenance and serviceability.
  • Internal rectifier input and output switches.
  • 6-pulse rectifier bridge with input isolation transformer.
  • Output LC ripple filter.
  • Rectifier protection fuse.
  • Battery monitoring and testing system.
  • Audible alarm.
  • 8 potential free contacts fault remote alarm.
  • Floor mounted cabinet with IP 30 protection
    and IP 20 open door.
  • Power and control cable markings.
  • Halogen free cable.
  • Component markings.
  • Bottom cable entry.
  • Standard labeling / nameplate.
  • Advanced Multi-functional LCD panel.
  • 20 programable alarm and status LEDs.

Tech Specs

RTB 50-2000 A 3-phase Battery Charger and Rectifier

Rating (A) 50 100 150 200 300 400 500 600 800 1000 1600 2000

Input

Nominal voltage 208/380/400/415/480 Vac 3-phase ±10%
Frequency 50/60 Hz ±5%

Output

Nominal voltage 24/48/60/110/125/220 Vdc (other voltages up to 900 Vdc on request)
Static voltage regulation ±1%
Voltage ripple ≤1-2% with and without battery depending on output voltage
Overload capacity < 120% for 20 min; < 150% for 2 min; > 150% for 20 s (protection electronic current limit)
Charging characteristic Constant current / constant voltage (I/U as per IEC 478-1) during float charge

System

Dimensions WxD (mm) Height is 2100 mm, width and depth vary with output rated current and voltage (see the table below)
Rating 50 100 150 200 300 400 500 600 800 1000 1600 2000
Output
voltage
24 Vdc 600x
800
600x
800
600x
800
600x
800
600x
800
800x
800
800x
800
800x
800
800x
800
1000x
800
2000x
800
2000x
800
48/60
Vdc
600x
800
600x
800
600x
800
600x
800
800x
800
800x
800
800x
800
1000x
800
1000x
800
1000x
800
2000x
800
2000x
800
110/125
Vdc
600x
800
600x
800
600x
800
600x
800
800x
800
800x
800
1000x
800
1000x
800
1000x
1000
1000x
1000
2000x
1000
2000x
1000
220 Vdc 600x
800
600x
800
600x
800
800x
800
800x
800
1000x
800
1000x
800
1000x
800
1000x
1000
1000x
1000
2000x
1000
2000x
1000
Cooling Natural convection or forced cooling depending on rating and IP protection
Colour RAL 7035 (other colours optional)
Protection degree IP 30 as per IEC 60529 (other protection degrees up to IP 54 optional)
Operating temperature -10 °C to +40 °C (up to 55° C optional)
Storage temperature -20 °C ÷ +70 °C
Altitude < 1000 m (derating according to EN 62040-3)
Audible noise (dBA) < 55 to 70 dBA at 1 m depending on rating and fan redundancy

User Interface

Front panel LCD display, LED mimic, keyboard. 20 programable alarm and status LEDs
Standard alarms AC Fail, DC Hi, DC Low, Charger Fail, Overload, Blown Fuses, Battery Discharge, Common Alarm (many other available as standard)
Connectivity Potential free contacts x 8 standard, RS-485 MODBUS (optional)

Standards

Safety IEC EN 50178, IEC EN 62040-1
EMC IEC EN 61000-6-2, IEC EN 61000-6-4,IEC EN 62040-2
Test and performance IEC EN 60146
Marking CE (CSA/UL certified as optional)
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