Description
Technical Specifications
- Product Model: 520CMD01
- Brand: ABB (Hitachi Energy)
- Series: RTU520 Remote Terminal Unit Platform
- Warranty: One Year
- Input Voltage: 24 VDC ±20%
- Operating Temperature: -25 °C to +65 °C
- Storage Temperature: -40 °C to +85 °C
- Response Time: < 10 ms event scan cycle
- Protection Class: IP20 (DIN rail cabinet installation)
- Accuracy Class: ±1 ms RTC time synchronisation accuracy
- Output Frequency: Not applicable (data communication module)
- Rated Current Range: Max 250 mA operating consumption
- Communication Interface: 1×RS232, 2×RS485, 1×10/100Base-T Ethernet, USB 2.0, internal WRB I/O bus
- Supported Protocols: IEC 60870-5-101, IEC 60870-5-104, Modbus RTU, Modbus TCP, DNP3
- Overload Capacity: Reverse polarity protection, ESD and surge protection on all communication ports
- Dimensions: 120 mm × 35 mm × 110 mm (standard DIN rail footprint)
Application Scenarios
- Electrical Power Substation Automation: Deployed within RTU520 racks to monitor circuit breakers, transformers and voltage regulators. It transmits real-time status and measurement data to central SCADA platforms over IEC 60870-5-104 Ethernet links, supporting reliable grid supervision and fault event recording.
- Water & Wastewater Remote Pumping Stations: Controls distributed pump and valve I/O modules at unmanned field sites. Multi-protocol serial interfaces connect flow meters and level sensors, enabling remote setpoint adjustment and automated alarm notification over wide-area communications.
- Oil & Gas Pipeline Remote Monitoring: Installed at intermediate pipeline block valve stations. Robust wide temperature tolerance ensures stable telemetry collection for pressure, flow and leak detection sensors in remote, unheated field enclosures.
- Renewable Energy Generation Sites: Provides data acquisition for wind farm and solar plant balance-of-plant equipment. Time-synchronised event logging supports compliance reporting and post-fault analysis for grid connection operators.
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