ABB REJ603 REJ603BBB10NN3XC Self-Powered Feeder Protection Device

FAQ

• Q1: Does this device require an external power supply?
  A1: No, the REJ603 is self-powered, drawing energy from the current transformers.

• Q2: What types of feeder lines can it protect?
  A2: It can protect single-phase or three-phase feeders in medium- and low-voltage distribution systems.

• Q3: Can the device be monitored remotely?
  A3: Yes, remote monitoring and parameter setting are supported via IEC 61850 or Modbus RTU.

• Q4: How fast is the device response time?
  A4: Typically between 10–50 ms, depending on the protection mode.

• Q5: What installation environment is recommended?
  A5: Dry, non-corrosive environment with temperature between -25℃ and +70℃.

• Q6: Can it detect directional overcurrent?
  A6: Yes, the REJ603 supports directional overcurrent protection.

• Q7: Is it suitable for limited installation space?
  A7: Yes, compact size (160 x 96 x 150 mm) and lightweight (0.9 kg) make it easy to install.

• Q8: How can the device parameters be configured?
  A8: Parameters can be configured via the front-panel LCD or through communication interfaces.

ABB ABB REJ603 REJ603BBB10NN3XC REJ603 REJ603BBB10NN3XC Self-Powered Feeder Protection Device

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