Protect RCS Outdoor Plus

Thyristor controlled ruggedized Rectifier & Charger System

Protect RCS is designed to provide high reliability power supply and battery charging capability. The Outdoor Plus version provides the same level of protection to your equipment and processes and complies with the stringent protection standards according to IEC 60529 (IP 65). Protect RCS is a thyristor-controlled rectifier suitable for charging nickel-cadmium or lead-acid batteries while supplying DC loads. It can also be used without batteries as a direct power supply. The rectifier is built from independent building blocks and can be supplied with optional equipment as required. Cabinets are floor mounted. The batteries are installed in a separate cabinet from the rectifier. The Outdoor Plus version has been designed to have a natural cooling process, which simplifies maintenance and decreases total cost of ownership.



400/480 VAC 3-phase



  • Heavy duty design
  • Natural cooling
  • Outdoor cabinet (IP 65 compliant according to IEC 60259)
  • Proven microprocessor-controlled thyristor technology
  • Building block design
  • High MTBF and low MTTR
  • Built-in protection
  • Digital processing and setting of all parameters
  • Monitoring of all parameters via the front panel display
  • Built-in intelligent battery management
  • Temperature-compensated charge voltage regulation
  • Manual or automatic high rate charge
  • Parallel operation
  • Alarm and event logger, including a date and time-stamped event log memory
  • Ease of installation, start-up and maintenance
  • International service support




Standard system

The Protect RCS range of systems has been preconfigured with a number of the most commonly requested features built-in as standard. These systems are available “off-the-shelf” with standard drawings and standard user documentation.

Standard configuration
  • Single system with building block modular design
  • Internal rectifier input switch Q1
  • 6-pulse rectifier bridge with input isolation transformer
  • Digital control card GCAU
  • Output filter L1-C1 ripple voltage <5 % RMS without battery
  • Rectifier F1 fuse and rectifier shunt R2
  • Blocking diode V21
  • Multi-functional LCD with 2 LEDs indicate the system status
  • Tropicalized control electronics boards
  • Common fault remote alarm
  • Floor mounted cabinet with external IP21 protection and IP20 with open doors
  • Cabinet colour RAL 7035
  • Power and control cable marking
  • Detailed 3-D layout and component marking presented on rear door
  • Door able to open to180° with three key locks
  • Bottom cable entry
  • Input / battery / output terminals X1, X2 and X3
  • Standard labeling / nameplate



As needed, the standard system can be enhanced by the additional options available. System speci c drawing packages and user documentation will be automatically generated to re ect the actual options con gured. To provide exact solutions for each application, we offer a wide range of options:

  • Parallel redundant configuration with load sharing
  • Special mains input voltages (180 – 690 V) and frequency 60 Hz
  • DC ripple filter 1 % & 0.1 %
  • 12 pulse rectifier with isolation transformer
  • Rectifier input MCB or fuse
  • Battery MCB, fuse or switch in rectifier
  • Battery MCB or fuse box
  • Load MCB, fuse or switch
  • Diode dropper
  • DC distribution
  • Battery installed inside the rectifier cabinet
  • RS232 / RS485 interface
  • RS232 / RS485 Modbusprotocol
  • TCP / IP interface
  • Protocol converters (Profibus DP, J-bus DNP3,IEC 61850 )
  • Monitoring andmanagement software
  • Modem
Alarms / signaling / measurement
  • LED alarm indicatorsin front panel
  • Relay cards 2 x 8 free contacts
  • Additional analog meters
  • Low electrolyte level alarm
  • Audible alarm
  • Temperature charging compensation sensors & cables
  • Temperature alarm
  • High DC ripple voltage alarm
  • Cable drop compensation
  • Battery circuit failure alarm
  • Ground fault alarm
  • High rate interlock
Remote control options
  • Rectifier shutdown command
  • Forced floating charge command
  • Alarm reset
  • High rate charge command

Additional options are available on request