IER electrical supply is a national OEM company supplying a wide variety of custom electrical equipment, Panelboards, Switchboards, Motor Controls and more. In addition, we offer professional electrical engineering, 3D mechanical design and a complete CNC manufacturing facility allowing IER to quick ship custom electrical equipment.

IER started in the Electrical Surplus Industry and over the last ten years we have evolved into a full custom equipment OEM company. We are an electrical OEM providing custom built electrical  equipment and controls to companies of many shapes and sizes. We are proud to say we have multiple UL listings and are a member of the Siemens Panel Builder Program. Our shop has extensive experience in manufacturing custom OEM products to fit your every need. The words “We can do that and will” is not just a slogan for us, we mean every word of it.



Enclosed Breakers

Enclosed breakers are assembled and shipped to meet customer demand. We carry a full line of enclosed circuit breakers to meet your every need.

disconnect switches

Disconnect Switches

General Duty Disconnect Switches are intended for applications where reliable performance and continuity of service are needed, but where duty requirements are not severe and usual service conditions prevail.

portable power units

Portable Power

Portable Power Systems from IER provides power in a rugged package. IER offers complete power solutions to fit small job sites to full sized construction sub-stations.



IER stocks Panelboards to specifically meet customer demand with same-day service available. IER is one of the largest quick-ship and custom panel board providers in the U.S.

bussed gutters

Bussed Gutters

IER supplies custom Buss Gutters to industries throughout the US in both powder-coated and stainless enclosures to meet your local utilities code requirements.

bussed weatherheads

Bussed Weatherheads

IER Bussed Weatherheads are designed to provide a long term and durable utility entry for large service requirements.



IER maintains one of the largest Switchboard inventories in North America to meet quick deliveries and can customize it as needed to meet your specific application.

Cable Tap Boxes

Cable Tap Boxes

IER’s standard Cable Tap Boxes will accommodate up to 14 cables per Phase and Neutral on the load side.

motor starters

Enclosed Motor Starters

IER’s Enclosed Motor Starters provide the simplest means of controlling small motors and systems. IER stocks a large selection of enclosed starters and pump panels for immediate shipment.

Soft Start Motor Controls

Soft Start Motor Controls

IER’s Enclosed Soft Starters provide customers with reduced starting current saving energy and motor wear. IER provides a large range of custom options for soft start motor controls to meet any customer application requirement.

variable frequency drives

Variable Frequency Drives

Variable Frequency Drives are the most effective means to reduce energy cost for operating electric motors. IER offers enclosed VFD’s in the same packaging as other motor control options to minimize and reduce installation time.

motor control centers

Motor Control Centers

Motor Control Centers are the most flexible distribution system available today, offering both the capabilities for power distribution system and motor control.

Insulator Fabrication

IER Electrical offers custom designed, UL® Recognized, NEMA Grade Insulator fabrication to fit most applications.

custom fabrication

Custom Fabrication

With full CNC metal fabrication in house, IER can manufacture Custom Fixtures and Mounting Hardware often required to meet custom applications and project needs.

custom tags and labels

Custom Labels & Tags

Our durable 2-ply phenolic tags are UV Rated, versatile and have a strong adhesive back that allows the tags to stick to most flat surfaces.

Explosion Proof Equipment

Explosion Proof Enclosures

IER stocks a wide variety of styles and sizes of Explosion Proof Enclosures for immediate delivery that can easily be customized to fit any NEMA 4X application.

Custom Enclosures

Custom Enclosures

IER’s complete manufacturing facility allows us to produce Standard and Custom Enclosures that are manufactured to meet any possible need with fast delivery times.

custom control panels

Custom Control Panels

IER is an experienced UL 508A control panel integrator with years of experience designing and manufacturing custom control panels for a wide variety of industries.

copper bus bar

Copper Bus Bar

IER offers complete custom Copper Bus Bar manufacturing capabilities with high flexibility and production accuracy to cut, bend and punch copper buss bar to specs.