Home/ABB/ABB REJ601 BD446NN1XG Digital relay for feeder protection
ABB REJ601 BD446NN1XG Digital relay for feeder protection
ABB REJ601 BD446NN1XG is a numerical relay dedicated to feeder protection in medium and low voltage distribution networks, belonging to ABB's medium and low voltage protection and control product series. This relay integrates multiple protection and monitoring functions, effectively ensuring the safe and stable operation of utility and industrial power systems in primary and secondary distribution networks. It not only supports traditional current transformer interfaces but also adapts to analog interfaces based on Rogowski coil current sensors, helping to reduce the size of medium voltage switchgear, improve performance, and achieve standardization.
wechatPhone 15359273787
Phone: 15359273787
Email: sales@zzhuie.com
connect：Mya
ABB REJ601 BD446NN1XG Digital relay for feeder protection
Specific Parameters
- Rated power supply voltage: 24V DC, 30V DC, 48V DC, 110 – 125V DC/AC, 220 – 250V DC/AC (optional).
- Current specification: 1A or 5A (optional).
- Pick-up current setting range: 0.5 to 2.50 times the rated current, with a step of 0.001.
- Operation time delay: 0.04 to 64 seconds, with a step of 0.01 second.
- Reset ratio: 0.96 for IDMT (Inverse Definite Minimum Time) and 0.98 for DT (Definite Time).
- Reset time: 40ms.
- Measurement accuracy: ±5.0% of the set value.
- Communication interface: RS – 485 interface, supporting Modbus protocol; optional communication card to support IEC 60870 – 5 – 103 protocol.
- Digital inputs/outputs: 4 digital inputs, 6 relay outputs.
- Phase and earth current input: Supports 1A or 5A input.
- Dimensions: Approximately 200mm×150mm×100mm (length×width×height).
- Weight: Approximately 1.5kg.
Product Performance
- Comprehensive protection functions: Covers overcurrent, earth fault, phase – discontinuity, negative – phase sequence and thermal – overload protections, inrush current detection and reclosing functions, providing main protection for overhead lines and cable feeders.
- Flexible configuration: Binary inputs/outputs can be configured through the local HMI or communication interface. There is also a specific version that supports on – site selectable CT (Current Transformer) selection (1A or 5A), boolean logic, and timer functions.
- Easy commissioning: Equipped with a selective test function for quick commissioning of protection functions, binary signals, and communication features.
- High reliability: Conducts comprehensive self – supervision of hardware and software; uses sensor versions/detachable terminals with CT shorting functions to enhance safety; press – fit mounting arrangement facilitates easy and fast installation.
- Wide compatibility: Supports multiple power inputs to adapt to different application scenarios; supports common communication protocols for easy connection to distribution automation systems.
Product has been added to your cart
There are no reviews yet.