- Model: REU615 HCUAEAADABC2BBN11E
- Brand: ABB
- Series: Relion 615
- Core Function: Voltage/frequency protection + automatic voltage regulation + arc protection
- Type: Voltage protection and control IED with arc protection option
- Key Specs: Config B (AVR for LTC), arc protection 50/59, 12 DI + 10 DO
- Key Specs: IEC 61850 (GOOSE + SMV), DNP3 TCP/IP, IEC 60870-5-103
- Key Specs: Supply 48–250 VDC / 100–240 VAC, large graphical display, PCM600 configurable
- Condition: New Original (New Surplus), not refurbished
- Key Technical Specifications
- Model: REU615 HCUAEAADABC2BBN11E
- Manufacturer: ABB
- Family: Relion 615 series
- Configuration: Config B (automatic voltage regulator) + arc protection option
- Application: Voltage/frequency protection for transformers, busbars, generators, motors, capacitor banks
- Core protections: 27 (under-voltage, 3 stages), 59 (over-voltage, 3 stages), 59G (residual, 3 stages), 81 (frequency, 6 stages), 81LSH (load-shedding, 5 stages), 50/59 arc protection
- Control functions: Circuit-breaker control (1), Disconnector control (2), Tap-changer control (1), Trip circuit supervision (2)
- Analog inputs: 4 CT + 3 VT
- Binary inputs: 12
- Binary outputs: 10
- Communication: IEC 61850-8-1 (MMS), IEC 61850-7-2 (GOOSE), IEC 61850-9-2 LE (sampled values), DNP3 TCP/IP, IEC 60870-5-103
- Communication ports: Front RJ45 (100Base-TX), rear RJ45 (IEC 61850)
- Display: Small LCD display with customizable SLDs, local or web-browser HMI
- Power supply: 48–250 V DC, 100–240 V AC, 24–60 V DC
- Binary input threshold: 16–176 V DC
- LEDs: Programmable (red/green)
- Mounting: Drawout plug-in unit with CT shorting feature for swift installation and testing
- Rated frequency: 50/60 Hz ± 5 Hz
- Input current: 1/5 A
- Operating temperature: -20°C to +60°C
- Protection class: IP40
- Certifications: EN 50263, EN 60255-26 (EMC)
- Product Introduction
The ABB REU615 HCUAEAADABC2BBN11E is a Config B voltage protection and control IED from the Relion 615 series with arc protection option, designed for automatic voltage regulation of power transformers with motor-driven LTC plus arc fault detection. It is selected when the scheme needs AVR, voltage/frequency supervision (27/59/81U/81O), and fast station communications with arc protection.
This unit follows the standard REU615 Config B data model with 4 CT + 3 VT analog inputs, 12 binary inputs, 10 binary outputs, and arc protection (50/59). IEC 61850 support (GOOSE + SMV) enables digital substation integration. The drawout plug-in design with CT shorting enables fast installation and testing, reducing outage time.







