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ACS880-304 – liquid-cooled diode supply modules

For non-regenerative drive systems

Built on our all-compatible architecture these diode supply units convert three-phase AC voltage to DC voltage in non-regenerative drive systems. The modules are specifically constructed to save space, cabling and installation costs. There are two different diode supply unit types, a direct uncontrolled diode bridge (frame D8D) and a half-controlled diode supply module (frame D8T). The uncontrolled diode bridge is typically used in single drive configurations and it is designed to be connected to a dedicated supply transformer which acts as an AC choke. The half-controlled diode supply module is typically used in multidrive configurations, it has in-built AC chokes for harmonics mitigation and in-built thyristors to charge the inverters connected to the common DC bus. The supply modules can be connected in parallel for higher powers.


Half-controlled diode-thyristor supply unit ACS880-304LC+A018 (frame D8T)

  • Inbuilt AC-chokes, DC-charging capability, internal current measurement
  • For single drives and multidrives
  • Power range 585 to 4780 kVA / 690 V
  • 6- and 12-pulse configurations

Uncontrolled diode-diode supply unit ACS880-304LC+A019 (frame D8D)

  • Compact, light (12kg), simple and cost efficient without any internal circuit boards or AC-chokes
  • Mainly for single drives with dedicated supply transformer
  • Optional external DC-charging circuit
  • Power range 980 to 3633 kVA / 690 V
  • 6/12/24-pulse configurations

Built on ABB's common drives architecture
Compact modules for flexible and optimized cabinet assembly
Extensive selection of mechanical and electrical accessories


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