3-Phase Power Distribution Units

3-phase PDUs with EMI filters, EPO, Ethernet, and more.

The front panel of one of Marway's Optima 833 3-phase PDUs.

Meeting Power Management Challenges

  • Protecting equipment from noisy power signals using specially-selected, three-phase EMI filters and surge suppressors.
  • Saving space by consolidating conditioning and conversion capabilities often in external power boxes.
  • Meeting the exact connectivity and control needs of specialized equipment.
  • Saving project time by managing compliance testing.

Standard and Custom

  • We have over 70 standard basic and smart 3-phase PDUs.
    • 120/208 3-phase wye, 20-amp and 30-amp models.
    • 2U, 3U, and vertical 0U configurations.
    • Basic, switched-only, metered and switched versions.
  • Marway specializes in application-specific PDUs.
    • Rackmount chassis from 0U to 24U, to rack sized.
    • Custom enclosures for non-rack applications.
    • Up to 480 Vac wye or delta, 400 amps.

Conversion, Conditioning, and Control

  • Meet EMI standards using filters and shielded enclosures.
  • Mitigate voltage spikes/transients using surge suppression.
  • Integration of ac and dc sources.
  • Conversions of three-phase input sources into single phase and dc branches.
  • Local and remote power monitoring.
  • Local and remote switching of outlets via relays, SSRs, or three-phase contactors.
  • Individually breakered branches.
  • EPO and interlock integration and remote panels.

Networked and Non-networked

  • Non-networked PDUs still offer some remote switching through discrete signals from remote panels.
  • Networked PDUs offer remote control and monitoring over Ethernet using HTTP/S, SSH, Telnet, and SNMP.
  • Remote switching of outlets.
  • Remote monitoring of inlet current, voltage, and power.
  • Remote monitoring of outlet current (Q4 2018).
  • Event alerts for startup, user login, outlet state change, EPO, current and voltage setpoint excursion, and configuration changes (via SNMP, email, SMS).
  • Scripted automation through Telnet, SSH, SNMP, or RESTful API over HTTP/S.

Compliance and Standards

  • Certified ISO 9001.
  • UL and CE certification (others when required)
  • Designed and manufactured to UL/IEC 62368-1 and 61010-1 (others when required)
  • Environment and HALT testing when required.

Learn More

Custom Projects

Explore the advantages of creating a custom PDU, our custom project process, and our capabilities.

A collection of custom power distribution units from Marway's Optima product line.

Smart Three-Phase PDUs

0U and 3U for 120/208 Vac 3-phase, 20 or 30 amps. EMI filter, remote EPO, more. Ethernet switching, metering.

Marway's Optima 833 intelligent three-phase PDU front panel.

Basic Three-Phase PDUs

0U, 2U, 3U for 120/208 Vac 3-phase, 20 or 30 amps. EMI filter, remote EPO, and more.

Marway's Optima 533 non-networked three-phase PDU front panel.