Industrial Power Distribution Units

Fully custom and standard models.
AC, DC, 400 Hz.
Networked and locally controlled.

A collection industrial PDUs from Marway covering a wide range of power forms and applications.

Meeting Power Management Challenges

  • Protecting equipment from industrial environments with noisy power using EMI filters, surge suppressors, and more.
  • Saving space by consolidating conditioning and conversion capabilities often in external power boxes.
  • Meeting the exact connectivity and control needs of specialized industrial equipment.
  • Saving project time by managing compliance testing.

Custom and Standard

  • Marway specializes in application-specific PDUs.
    • Rackmount chassis from 0U to 24U, to rack sized.
    • Custom enclosures for non-rack applications.
    • AC, DC, 400 Hz — up to 480 Vac, 400 amps.
  • We have nearly 300 standard basic and smart PDUs.
    • 1-phase, 3-phase, 15-, 20-, and 30-amp models.
    • 1U, 2U, 3U, and vertical 0U configurations.

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 for ac-ac, ac-dc, dc-dc, and dc-ac.
  • Local and remote power monitoring and switching.
  • 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).
  • Integrated industrial automation by scripting with 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 Industrial PDUs

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 Industrial PDUs

0U, 1U, 3U for 1-phase and 3-phase, 15, 20, 30 amps. EMI filter, remote EPO, more. Ethernet switching, metering.

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

Basic Industrial PDUs

0U, 1U, 2U, 3U for 1-phase and 3-phase, 15, 20, 30 amps. EMI filter, remote EPO, and more.

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

What Makes an Industrial PDU

An industrial PDU is designed to mitigate electrical signal quality problems seen in industrial environments, as well as include unique control and safety features not found in commodity, commercial PDUs. They also tend to have a wider variety of connection and power options compared to commercial PDUs.

Top 5 Advantages of Industrial PDUs

  • Reduction or elimination of conducted and inducted electro-magnetic interference (EMI) from nearby electrical equipment.
  • Protection against voltage spikes created by high-powered equipment on the same lines, and lightening strikes near outside transmission lines.
  • Integration of remote interlocks to power outlets to meet industrial safety requirements.
  • Creation of multiple power forms from a single facility power source such as creating higher or lower voltages, or even dc power from ac power and vice versa.
  • Adapting to the use of specialized connectors and outlets to interface to existing customer equipment, safety systems, and more.

Handling Noisy Power

Noisy facility power signals occur in factories, test labs, service bays, and other industrial environments due to the varying loads of nearby high-powered equipment. Like sudden water pressure surges cause pipes to rattle, sudden surges of “pressure” and “flow” (voltage and current) in electrical lines cause signal abnormalities. A weak fitting along a pipe might leak, and a weak component in an electronic system may fail.

Most commodity PDUs are designed for office-like environments where there is little influence on power signals from nearby equipment. At most, these PDUs may have some surge protection since those devices are relatively low cost and small. Industrial PDUs integrate surge suppression, EMI filters, isolation transformers, and other tools to mitigate the severity of noisy facility power signals coming from many different sources.

Providing More Control and Connection Options

Industrial PDUs offer a wider range of circuit designs, control features, power monitoring, and even remote management capabilities. Most commodity power distribution products have a single circuit serving all outlets with perhaps an on/off switch or breaker. Industrial environments often require more control over multiple individual circuits. For many applications, digital power displays are important. Indicators for the status of specific circuits and interlocks ar simple additions, but unique to each application. Adapting to these unique switching, display, and control needs, is a key capability in an industrial PDU.

Another area of important flexibility for an industrial PDU is that of cable connectors. Most people are aware of only the common wall sockets in offices and homes. In the industrial realm, there are hundreds of unique connectors. There are standardized ac power connectors, but even then there are dozens of types depending on voltage, current, safety features like locking, resistence to water, vibration, and more. Even more than power connectors, control signal connectors are even more varied. Integration to external interlocks, sensors, and more require that a PDU have the flexibility to incorporate what a facility needs.

Creating Different Power Types

Many industrial environments also need a mixture of different power types. The building facility power will usually come in one, or maybe two forms. In industrial environments, this is most typically three-phase ac power. In various manufacturing or laboratory stations, there may be a need for different types of power. Ac may be needed in three-phase and single-phase forms. Different voltages may be needed to serve the larger and smaller pieces of equipment. Even dc power is often needed in the same work spaces as ac power. Industrial PDUs can integrate transformers, power supplies, and power converters to create multiple power types from single facility source.

A PDU exhibiting some of the features typical of the top advantages of industrial PDUs. A PDU exhibiting some of the features typical of the top advantages of industrial PDUs.
An industrial pdu (power distribution unit) includes capabilities to reduce noisy power signals, integrate industrial safety interlocks, and provide the unique connectivity and control needed for power management in industrial environments. Most commodity, commercial distribution units do not have these features.