United Wire & Cable Inc. and Trenwa, Inc. announce partnership to supply MAXIAMP Underground Cable Bus Systems to customers across the US and Canada

MAXIAMP Underground Cable Bus

MAXIAMP Underground Cablebus is United Wire & Cable’s proprietary, award winning underground power feeder system that maintains a free air ampacity rating below grade. Achieving a free air rating enables the power feeder system to be designed using fewer and/or smaller power cables, resulting in less material, labor and dramatically less space required vs. traditional subterranean power feeder systems such as a duct bank (wire in conduit) system.

Trenwa, Inc. will be the supplier of precast trench as the underground containment for the MAXIAMP cable bus system.  This strategic partnership provides United Wire & Cable with a precast trench supplier that has distributed manufacturing across North America with sufficient capacity to supply their rapid growth in the market.

“We are excited to partner with Trenwa as the trench supplier for our underground cable bus systems.  Their best in class trench systems, excellent track record and their distributed manufacturing locations enable us to deliver the best quality, while ensuring we meet the short lead times demanded by our customers”, said Bill Baldasti, General Manager of United Wire & Cable.

“MAXIAMP Underground is the perfect solution for our customers that want to get away from old fashioned duct bank and achieve free air cable ampacity rating in our trench systems.  United Wire & Cable’s unique design integrates perfectly with our product line”, according to George Schurr, President of Trenwa.

About United Wire & Cable Inc.

United Wire & Cable has been serving the electrical wire and cable industry on a global scale for over 35 years. We are dedicated to providing the highest value, quality power feeder systems available in the market. To learn more, visit www.unitedwc.com/maxiamp or www.maxiampunderground.com

Contact us at  sales@unitedwc.com or toll-free 1-800-265-8697.

About Trenwa, Inc.

Trenwa, Inc. manufactures a variety of precast concrete trench systems for the distribution of electrical control cables, power cables, mechanical piping, and fiber optics etc. To learn more, visit www.trenwa.com

Contact us at info@trenwa.com or via telephone at 859-781-0831.

MAXIAMP® Underground Cablebus System awarded “Product of the Year” by Consulting-Specifying Engineer Magazine!

CSE Magazine Product of the Year: MAXIAMP Underground Cable Bus

United Wire & Cable is pleased to announce that the company’s MAXIAMP® Underground Cablebus System has been named the Product of the Year by the readers of Consulting-Specifying Engineer magazine in the Electrical Systems & Equipment category.

MAXIAMP® Underground Cablebus is the most technically advanced below grade power feeder system on the market. It is typically used as a primary, secondary, or backup power feeder from 1000A to 8000A and 480V to 46kV.

MAXIAMP® Underground is a fully engineered system that combines a MAXIAMP® Cablebus with a proprietary, specially designed ventilated trench that enables the power feeder system to achieve free air ampacity rating below grade. Achieving free air ampacity rating enables three key advantages for MAXIAMP® Underground:

  • Smaller and/or fewer cables can be used to deliver the same amount of power – resulting in cost savings.
  • The system requires significantly less space underground to install comparative to a typical duct bank installation.
  • It requires less labor and time to install when compared to a duct bank of similar routing.

“We are extremely honored and proud to receive this award from such a well-respected magazine” said Bill Baldasti, General Manager of United Wire & Cable. “MAXIAMP® Underground was developed to solve the challenges faced when designing or installing a concrete duct bank. Notably: the amount of real estate required, and the amount of derating that the cables in the duct bank system are subjected to. The positive response to MAXIAMP® Underground by the engineering and electrical installer community has left us humbled.”

MAXIAMP® Underground Cablebus has been used to safely and reliably provide power for some of the largest data centers, battery energy storage systems (BESS), industrial and municipal projects across the United States, Canada and the Caribbean.

MAXIAMP® Cablebus System is certified by CSA to the CSA C22.2 No.273 Cablebus standard.  MAXIAMP® Underground US PAT. NO. 10,141,731. Canadian Patent Pending.

To learn more about MAXIAMP® and MAXIAMP® Underground, visit our website at www.MaxiampUnderground.com or ww.unitedwc.com/maxiamp or contact our Technical Team toll free at
1-800-265-8697 or sales@unitedwc.com

Learn more about MAXIAMP Underground Cable Bus!

Engineers, installers and owners alike LOVE our underground cablebus system: MAXIAMP Underground.

To help our customers better understand our unique product, we have launched a new site dedicated to our MAXIAMP Underground Cable Bus – visit it to learn how MAXIAMP Underground achieves free air ampacity ratings underground and is the most reliable, secure and efficient underground power feeder system available in the market.

Data Centres, hospitals, retail distribution and any project with complex routing requirements or where the security of the primary/secondary power feeder systems are important will benefit.

Visit: https://www.MaxiampUnderground.com/ to learn more!


MAXIAMP is CSA 273 CertifiedUnited Wire & Cable is proud to announce that MAXIAMP has become the first and only Cablebus System certified by CSA to its rigorous C22.2 No.273 Cablebus standard.

The CSA 273 Certification is a true testament to the quality and reliability of MAXIAMP Cablebus” says Raffi Morcos, P.Eng of United Wire & Cable.  “MAXIAMP provides tremendous flexibility to engineers during the design phase, effortless installation for contractors and years of unmatched reliability for the owner”.

We designed MAXIAMP cable bus from the outset to be the most technically advanced power feeder system available.” Said the late Bob Pawluk, P.Eng, founder of United Wire & Cable and lead inventor. “Anyone who requires a power feeder system today with a load in the range of 1000A to 8000A and voltages of 600V and up should contact us to learn how MAXIAMP cable bus can provide a lower total cost of installation and ownership.

Installing MAXIAMP Cablebus certified by CSA to C22.2 No. 273 ensures you are installing the highest quality, most reliable cablebus on the market.

For Additional Information on MAXIAMP Click Here.

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