REF601CE446BB1 ABB RELION 600 Series Protection Relay
Manufacturer: ABB
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Part Number: REF601CE446BB1
Condition：New with Original Package
Product Type: Protection Relays
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The ABB REF601CE446BB1 belongs to the renowned RELION 600 Series, serving as a dedicated feeder protection and control relay for substations and industrial power distribution networks. This module integrates high-speed protection logic with advanced monitoring to safeguard assets against overcurrent, earth faults, and thermal overloads. It acts as the primary intelligence in a switchgear panel, enabling precise fault detection and remote control via modern communication architectures. We supply this unit as 100% Brand New and Original in factory-sealed packaging.
Part Number Breakdown: REF601CE446BB1
The REF601 series utilizes a specific coding structure to define protection algorithms, hardware configuration, and communication protocols.
| Code | Option | Function |
| REF601 | Basic Type | Feeder Protection Relay |
| CE | Hardware Version | Specific I/O and Analog Input Configuration |
| 446 | Protection Level | Comprehensive Overcurrent, Earth Fault, and Thermal Logic |
| BB1 | Communication | IEC 61850 / Modbus Integration Package |
Technical Specifications
| Specification | Details |
| Protection Functions | Overcurrent (50/51), Earth Fault (50N/51N), Thermal, Frequency |
| Communication Protocols | IEC 61850, Modbus RTU |
| Measurement Accuracy | Class 0.5 for Currents and Voltages |
| Event Recording | Oscillography, Disturbance Logs, and Sequence of Events (SoE) |
| Input Channels | Configurable Digital Inputs and Analog CT/VT Inputs |
| Mounting | Standard 35mm DIN Rail |
| Operating Temperature | -25°C to +70°C |
| Weight | 1.0 kg |
| Dimensions | Standard DIN Module Profile |
Engineering Advantages
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Seamless Substation Integration: The REF601CE446BB1 fully supports the IEC 61850 standard. This allows the relay to communicate horizontally with other substation devices and vertically to SCADA systems, reducing the need for hardwired interlocks and copper cabling.
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High-Fidelity Disturbance Analysis: The integrated oscillography feature captures high-resolution waveform data during a trip event. Engineers use these disturbance logs to analyze transient faults, ensuring faster troubleshooting and reduced downtime in industrial grids.
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Space-Efficient DIN Rail Design: Unlike traditional flush-mount relays that require large panel cutouts, this module clips directly onto a 35mm DIN rail. This design saves significant space in compact switchgear and allows for rapid hardware replacement or system expansion.
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Advanced Thermal Management: The relay executes a sophisticated thermal replica algorithm. It calculates the heat buildup in cables and transformers based on current flow, preventing insulation damage before a traditional overcurrent trip would occur.
FAQs
Q: Can I configure the REF601CE446BB1 for both 50Hz and 60Hz systems?
A: Yes. The relay allows for software selection of the system frequency, making it suitable for global power distribution standards.
Q: How do I access the disturbance logs?
A: You can retrieve logs and oscillography files through the front communication port using ABB's protection and control IED manager software, or remotely via the IEC 61850 station bus.
Q: Does this relay support earth-fault protection for ungrounded networks?
A: The REF601CE446BB1 includes sensitive earth-fault detection logic, which you can configure to monitor ungrounded, resistance-grounded, or solidly grounded systems.
Q: Is the display readable in low-light substation environments?
A: The module features a high-contrast backlit LCD and programmable LEDs that clearly indicate "Ready," "Start," and "Trip" statuses even in poorly lit control rooms.