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NDBU-85

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The ABB NDBU-85 DDCS Branching Unit is an industrial network module that expands DDCS connectivity, enabling reliable real-time communication in automation systems.
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Technical specifications for NDBU-85

  • Manufacturer:
    ABB
  • Part Number:
    NDBU-85
  • Product Family:
    ABB Drives
  • Product Numbers:
    NDBU-85
  • Product Type:
    DDCS Branching Unit
  • Baud Rate:
    12Mbps
  • Supply Voltage:
    24V DC (±10%)
  • Power Consumption:
    10W typical
  • Isolation:
    500V AC
  • Fiber Type:
    Multi-mode 62.5/125μm
  • Operating Temperature:
    0°C to +55°C
  • Storage Temperature:
    -40°C to +85°C
  • Relative Humidity:
    5-95% non-condensing
  • Weight:
    0.72 kg
  • Estimated shipping dimensions:
    26.3x9.5x5.5cm
  • 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
The ABB NDBU-85 DDCS Branching Unit is a branching unit designed specifically for industrial automation networks. Supporting an 8+1 channel configuration, it efficiently expands the connectivity of DDCS networks. This module supports the ABB DDCS protocol, achieving communication rates up to 12 Mbps, ensuring real-time and reliable data transmission.

This branching unit operates on a 24V DC power supply (±10%), with a typical power consumption of approximately 10W, and features 500V AC isolation protection to effectively ensure system and equipment safety. The module supports multimode fiber (62.5/125 μm) access, suitable for data transmission and remote communication in industrial environments.

The ABB NDBU-85 is highly adaptable to various operating environments, functioning normally in temperatures ranging from 0°C to +55°C and non-condensing relative humidity from 5% to 95%. Its storage temperature range is -40°C to +85°C, meeting the needs of various industrial control scenarios. This module is widely used in power systems, factory automation, and other distributed control systems requiring stable DDCS communication. 
Alternative Names
ND8U-85 NDBU-B5 ND8U-B5 NDBU85 ND8U85 NDBUB5 ND8UB5
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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.
Does the NDBU-85 come with a warranty?
Yes, the NDBU-85 includes a free 1-year Apter Power warranty.
How many channels does the ABB NDBU-85 DDCS Branching Unit support?
Supports 8+1 channel configuration.
What communication protocol and speed does the module use?
Supports ABB DDCS protocol, up to 12 Mbps.
What are the power supply and power consumption specifications?
24V DC (±10%) power supply, typical power consumption approximately 10W.