Home/ABB/ABB REF601 CE446BB1NH Digital feeder protection and measurement device
ABB REF601 CE446BB1NH Digital feeder protection and measurement device
ABB REF601 CE446BB1NH belongs to the 605 product series in ABB's Relion® product family and is a digital feeder protection and measurement and control device. It is mainly used to protect and control the primary and secondary distribution networks in public utility and industrial power systems. The device integrates protection, monitoring, and control functions. Compared with similar products, it has excellent performance and availability. In addition to the version based on the traditional current transformer interface, it also supports the version based on the Rogowski current sensor analog interface, which helps to reduce the volume of medium - voltage switchgear, improve performance, and achieve standardization.
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Phone: 15359273787
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ABB REF601 CE446BB1NH Digital feeder protection and measurement device
Specific Parameters
- Rated voltage (Vn)：24…240V AC, with frequencies of 50 and 60Hz; 24…240V DC.
- Voltage variation range：For AC, 85…110% of Vn (20.4…264V AC); for DC, 70…120% of Vn (16.8…288V DC).
- Input frequency：50/60Hz.
- Current input：Rated current can be selected as 1A or 5A.
- Thermal withstand capability：Can withstand 4A or 20A continuously, and 100A or 500A within 1 second.
- Dynamic current withstand capability：The half – wave value is 250A or 1250A.
- Input impedance：＜100mΩ or ＜20mΩ.
- Communication protocols：Supports MODBUS RTU and IEC 60870 – 5 – 103 communication protocols via a two – wire RS485 interface.
- Dimensions：Width is 130.0mm, height is 160.0mm, and depth is 151.5mm.
- Weight：3.2lbs (1.43kg).
- Operating temperature range：-25℃ to +55℃.
- Storage temperature range：-25℃ to +70℃ (not exceeding 16 hours).
- Relative humidity：Less than 93%, non – condensing.
- Altitude：Up to 2000m (6561ft).
Product Performance
- Comprehensive protection functions：It has functions such as non – directional overcurrent protection (divided into three stages), ground – fault protection (divided into two stages), phase discontinuity protection, negative sequence overcurrent protection, and circuit breaker failure protection, which can effectively deal with various fault conditions and ensure the safety of the power system.
- Flexible control functions：It has a circuit breaker control function and can perform opening and closing operations through the local human – machine interface, which is convenient for device control and management.
- Accurate measurement functions：It can measure three – phase current, residual current, negative sequence current, thermal level, etc., providing accurate data for system operation status monitoring.
- Event and fault recording：It can store up to 100 events with timestamps, and at the same time, can record the analog value fault records of the last five trip events, which is convenient for fault analysis and troubleshooting.
- Good communication performance：It supports MODBUS RTU and IEC 60870 – 5 – 103 communication protocols and realizes communication through the RS – 485 two – wire interface, which is convenient for data interaction with other devices and integration into the power automation system.
- Convenient installation：It adopts a push – fit installation method, which is simple and fast, and has separable terminals with CT short – circuit facilities, which is convenient for installation and maintenance.
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