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APBU-44CE

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The ABB APBU-44CE is a DIN-rail-mountable branching unit designed for ACS800 series drives, enabling parallel connection of 12 modules while integrating datalogging for fault analysis.
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Technical specifications for APBU-44CE

  • Manufacturer:
    ABB
  • Part Number:
    APBU-44CE
  • Product Family:
    ABB Drives
  • Product Type:
    68243262
  • Number of channels:
    12
  • Mounting:
    On 7.5 × 35 mm mounting rail (EN50022), vertical or horizontal
  • Operating temperature:
    +0...+50 ℃ (free air circulation)
  • Current consumption:
    350 mA typical, 400 mA max
  • Operating voltage:
    24 VDC ±10%
  • Internal protection:
    Microfuse, 1 A, slow
  • Transmitter current:
    30 mA
  • Max. optical cable (POF) length:
    15 m
  • Protocol:
    PPCS links, V1...V10: PPCS, 8 Mbit/s; DDCS link, V11 & V12: DDCS, 1/2/4/8 Mbit/s
  • Weight:
    1.04 kg
  • Estimated shipping dimensions:
    27.4x10.5x6.5cm
  • 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
Tailored for scalable ABB ACS800 drive systems, the APBU-44CE serves as a critical link between the RDCU drive control unit and inverter/supply modules: it facilitates parallel connection of up to 12 ACS800 modules via its PPCS fibre optic interface, supporting high-power industrial setups (e.g., large motor drives, multi-module power supplies). Beyond branching, it includes a built-in datalogger that captures and stores real-time power stage data—this functionality streamlines fault tracing and performance analysis, helping maintenance teams diagnose issues quickly and minimize production downtime.

Engineered for industrial usability, the unit mounts flexibly on 7.5×35 mm DIN rails (EN50022) in vertical or horizontal orientations, fitting seamlessly into standard control cabinets. It operates on 24 VDC ±10% (with 350 mA typical/400 mA max current consumption) and includes a 1A slow-blow microfuse for internal overcurrent protection. Its fibre optic links support up to 15m POF cable lengths, with dual-protocol compatibility: PPCS (8 Mbit/s for V1-V10) and DDCS (1/2/4/8 Mbit/s for V11-V12), ensuring adaptability to different ACS800 module configurations.

Built to withstand typical industrial environments, the APBU-44CE functions reliably at 0...+50°C (with free air circulation) and pairs seamlessly with ACS800 module components (e.g., IGBT/drive kits). Its compact, rugged design balances scalability, data visibility, and ease of integration—making it a core component for high-power, multi-module ACS800 drive systems.
Alternative Names
AP8U-44CE APBU44CE APBU‑44C AP8U44CE APBU‑44EC APBU‑44cE
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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.
What mounting option does it use?
7.5×35 mm DIN rails (vertical/horizontal).
What operating voltage does it require?
24 VDC ±10%.
Is the ABB APBU-44CE Branching Unit new?
Yes, it is fully original and brand new.
What’s the max POF cable length it supports?
15 m.
What is the delivery time?
In-stock items ship within 2–3 days.
Does it support multiple communication protocols?
Yes (PPCS 8 Mbit/s; DDCS 1-8 Mbit/s).
What’s its typical current consumption?
350 mA (max 400 mA).

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