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BCU-12

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The ABB BCU-12 is a converter control unit with fiber optic links, integrating branch unit functionality and supporting 7 fiber optic connections for real-time data acquisition and fault tracing.
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Technical specifications for BCU-12

  • Manufacturer:
    ABB
  • Part Number:
    BCU-12
  • Product Family:
    ABB Drives
  • Product Type:
    3AUA0000110430
  • No. of fiber optic connections:
    7
  • Power supply:
    24 VDC(±10%),2A
  • Relay outputs RO1…RO3:
    250 VAC/30VDC,2A
  • Digital inputs DI1…DI6:
    24 Vlogic levels: “0” < 5 V, “1” > 15 V
  • Input type:
    NPN/PNP (DI1…DI5), PNP (DI6)
  • Hardware filtering:
    0.04 ms, digital filtering up to 8 ms
  • Imax:
    15 mA (DI1…DI5), 5 mA (DI6)
  • Rin:
    2.0 kohm (DI1…DI5)
  • Connector:
    RJ-45
  • Physicallayer:
    RS-485
  • Transmission rate:
    8Mbit/s
  • Frequency range:
    0…500Hz
  • Operation temperature:
    +0 to +70 °C (158 °F)
  • Housing:
    Hot-dip zinc coated steel, cover painted
  • Package:
    Cardboard
  • Degree of protection (IEC/EN 60529):
    IP10
  • Weight:
    1.55 kg
  • Estimated shipping dimensions:
    31x14x8.3cm
  • Tariff Code:
    8537101190
  • Country of origin:
    Sweden
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.
Description
The ABB BCU-12 Control Unit (3AUA0000110430) is a high-performance control unit designed for managing ABB converters via fiber optic links. It integrates branching unit functionality, enabling the collection and secure storage of real-time data from connected converter modules to support fault tracing, monitoring, and analysis. Data is safely stored on a secure data card to ensure reliability and traceability.

Equipped with seven fiber optic connections (V1…V7), the BCU-12 includes one BPEB‑05 board, which adds five additional connections beyond the basic V1 and V2. This allows the unit to interface seamlessly with multiple converter modules while maintaining synchronized communication and efficient control.

The BCU-12 operates on a 24 V DC (±10%) power supply at 2 A, and supports relay outputs RO1…RO3 rated at 250 VAC/30 VDC, 2 A. It also includes six digital inputs (DI1…DI6) compatible with NPN/PNP and PNP logic levels, featuring hardware filtering (0.04 ms) and digital filtering up to 8 ms to ensure stable signal processing.

Constructed with a hot-dip zinc coated steel housing and painted cover, the unit is designed for durability in industrial environments, with an operating temperature range of 0–70 °C (32–158 °F) and IP10 protection rating. The BCU‑12 is compatible with standard RS‑485 communication via RJ‑45 connectors, supporting 8 Mbit/s transmission rate and frequency range 0–500 Hz, making it ideal for robust converter control applications.
Alternative Names
BCU-I2 BCU-1Z BCU12 BCUI2 BCU1Z
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
How many fiber optic connections does the BCU-12 have?
The BCU-12 has seven fiber optic connections (V1…V7), including the additional five provided by the included BPEB‑05 board.
What power supply does the BCU-12 require?
It operates on 24 V DC (±10%) at 2 A.
What is the operating temperature range for the BCU-12?
The control unit operates reliably between 0–70 °C (32–158 °F).
What warranty does the BCU-12 have?
Apter Power provides a 12-month warranty for the BCU-12.
Which communication standard does the BCU-12 use?
It supports RS‑485 physical layer communication via RJ‑45 connectors, with 8 Mbit/s transmission rate and frequency range 0–500 Hz.
How fast can the BCU-12 be shipped?
Shipping depends on stock availability. If the BCU-12 is in stock, we can ship within 2–3 business days.

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