Product Description
ABB REF601 CE446BB1NH is a compact numerical feeder protection and control relay of the ABB Relion 605 series, specially developed for medium and low-voltage secondary distribution networks. It integrates protection, measurement, control and communication functions into one intelligent power device. Equipped with comprehensive feeder fault protection logic and high-precision power data acquisition capability, it realizes rapid fault isolation and safety interlock for line overload, short circuit and earth faults, compatible with various power grid grounding systems. Supporting standard industrial power communication protocols and PCM600 software configuration, it features flexible parameter setting and convenient commissioning. Adopting a compact modular embedded structure, it offers excellent dust-proof, shock-proof, wide-temperature and anti-EMI performance, ensuring long-term stable 24-hour continuous operation in switchgear and ring main units. It is a genuine core power spare part for new power distribution projects, old equipment renovation, faulty relay replacement and power system upgrading.
2. Technical Parameters
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Part Number：REF601 CE446BB1NH
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Product Series：ABB Relion 605 Series
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Product Type：Numerical feeder protection and control relay, MV/LV power distribution protection device
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Applicable Grid：Solidly earthed, resistance-earthed and isolated MV/LV distribution networks
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Core Protection Functions：Three-phase overcurrent protection, short-circuit protection, earth fault protection, overload protection, fault recording
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Measurement & Control：Real-time power monitoring, load trend recording, circuit breaker control and remote signal acquisition
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Communication Protocol：Modbus RTU, IEC 60870-5-103 via RS485 interface
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Configuration Method：PCM600 software parameter setting and CID file import for fast commissioning
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Physical Specification：Compact panel-mounted design, net weight approx 1.43kg
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Operating Temperature：-25℃ ~ +55℃ for stable wide-range operation
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Structural Features：Shallow-depth body, suitable for narrow switchgear installation space, easy mounting and maintenance
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Protection Performance：Industrial dust-proof, shock-proof and anti-EMI design for harsh power station environments
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Working Condition：Municipal power grid, industrial power distribution, 24-hour continuous power operation
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Product Attribute：Original genuine core power protection and control spare part of ABB
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Supply Status：New original in stock, high-quality used and fully tested refurbished products available
3. Application Scope
This protection and control relay is widely applied in municipal MV/LV distribution networks, industrial park power systems, industrial and mining substations, rail transit power facilities and building power systems. It provides full-range fault protection and operational monitoring for overhead lines, cable feeders and distribution transformers, quickly isolating short-circuit, overload and earth faults to ensure safe and stable operation of power distribution systems. It is commonly used for new power distribution project installation, old protection equipment replacement, substation automation renovation, switchgear maintenance and power system optimization. It serves as an essential intelligent core protection device for medium and low-voltage secondary distribution networks.
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