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
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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.
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