About Us

ESPI (Engineered Specification Products, Inc.) first started in 1992 by Nick Arena in Syracuse, NY.  In 1998, Mr. Arena relocated to Phoenix and performed various management roles until ESPI resurfaced in Phoenix, AZ.  The primary focus of the business is switchgear and control products.  They started out with three lines and now represent 11 power distribution and control lines.  Our greatest addition is Neil Dennis and is now Mr. Arena’s business partner.  Combined, they have over 60 years in the electrical industry.


The focus of ESPI’s business ranges from the Mining industry, Military bases, Justice Complexes, Water Treatment & Pump Stations, and PV Solar following the most current trends.  We support the Medium Voltage business with Federal Pacific’s Pad Mounted switchgear as well as PCI Metal Clad and Metal Enclosed Switchgear.  Gavan Graham was very much involved with three of our largest MV projects.


Our newest additions are exciting ones with Bender Health Care Systems (formerly  Isotrol) which supplies Isolated Power Systems for surgical suites in hospitals and outpatient surgical centers.  Benshaw manufactures premier Low Voltage & Medium Voltage Soft Starts and VFD’s and is well known in the electrical industry.   ROMAC, member of PEARL allows ESPI to find gently used and remanufactured Vintage products including MV Vacuum Breakers, Air Breakers, Molded Case breakers, MCC buckets and much, much more. We also supply Fiberglass Junctions and Sectionalizers under the PDI brand and furnish local sales and service for Boltswitch Products.


Please contact Neil Dennis ndennis@espincaz.com or Nick Arena nick@espincaz.com for assistance.