Midwest Current Transformer has been an industry leader in design and production of current transformer products for over 50 years. Our focus is to build quality products designed to meet your needs. You may choose from any of our standard products or we can design and build a custom solution specifically for your application.

Superior Goals and Higher Expectations

It is the goal of Midwest Current Transformer to maintain its position as a worldwide industry leader . . .

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CT Series Current Transformer

CT Series Current Transformer

The CT Series offers a wide range of standard ratios to 1 amp and 5 amp secondary outputs.

Standard units are manufactured with 24 inch leads, 600 volt fiberglass insulation wrap and a protective polyurethane coating.

Screw terminals, high voltage insulation, mounting brackets and ratios to 0.1 amp are available. Please specify when placing your order.

RC Series Current Transformer

RC Series Current Transformer

The RC Series offers a wide range of standard ratios to 1 amp and 5 amp secondary outputs.

Standard units are manufactured with 24 inch leads and a round polycarbonate case.

Mounting brackets and ratios to 0.1 amp are available. Please specify when placing your order.

SC Series Current Transformer

SC Series Current Transformer

The SC Series offers a wide range of standard ratios to 1 amp and 5 amp secondary outputs.

Standard units are manufactured with brass screw terminals and a square polycarbonate case.

Lead wires instead of screw terminals and ratios to 0.1 amp are available. Please specify when placing your order.

Custom Current Transformer

Custom Current Transformer

Midwest Current Transformer offers you a wide range of current transformers. Should a standard unit not meet your specific application, our experienced staff will design a custom current transformer for you.

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Premier Current Transformer Manufacturing Company

As a premier leader among current transformer suppliers, Midwest Current Transformer has served customers requiring high quality current transformer products for more than five decades. Our targeted focus is the manufacture of standard and custom design current transformer solutions to meet the requirements of a wide range of applications.

Customized Current Transformer Design

We offer pre-made current transformers to serve the needs of various power applications. Our team is able to customize your order in order to help you achieve the optimum current transformer solution in terms of size, ratio, accuracy, multiple taps, contacts, mounting options, and burden rating.

Our Electrical Current Transformer Construction

At Midwest Current Transformer, we manufacture the majority of our current transformers from cold-rolled grain oriented electrical steel (CRGO). The CRGO steel comprising our current transformers is rolled into your required inner and outer diameter dimensions which permits precise dimensioning and tight construction between layers. As an iron-silicon alloy, CRGO electrical steel provides high permeability and low core loss that enables greater efficiency and cost-effectiveness of the current transformer.

Total Quality Management

Our approach consists of Total Quality Management protocol in which our employees, customers, and suppliers are valued as an integral part of our successful process. Our standard for success is error-free performance with the commitment to error prevention and getting-the-job-done-right-the-first-time mindset.

Through hands-on product inspection as part of an entire quality management system, we strive for perfection at every stage of the manufacturing process before your products leave our hands. We push toward continual quality improvement, adherence to safety standards, and personnel development through high-value training across all levels of our operations.

Contact Us

For more information about the superior current transformer products we offer at Midwest Current Transformer, call us today at 800.893.4047 or email sales@aenpi.com.

2 minutes reading time (332 words)

Resistive Heating Origin and Cause Uncovered

Blaze Fire Investigation is now known as Anderson Engineering. (updated 6/28/17)


An extension cord was determined to be the cause of an apartment fire.SITUATION:

A Blaze Fire Investigator is called to the scene of an apartment fire. The area is nearly knee deep in debris and objects have been moved around, changing the scene. There is a clear fire pattern observed on a wall, pointing to the floor. A sofa is burned on one side and a window air conditioning unit is visibly melted.


This investigation needed to begin with an interview with the tenant. With his home unlivable because of the fire, he was not easy to find but when located through a relative, he was cooperative. The tenant was able to visually recreate the room and the placement of furniture that had been disturbed during the course of the fire fight. Although one would assume that the air conditioner would not be used on a cool day, the tenant was able to share that because the multi-family building was usually warm, that he did, in fact, leave the air conditioner on while he left to go to an appointment.

Our investigator carefully sifted through the debris and discovered a fire pattern from the window pointing away from the wall. While the window air conditioner exhibited damage on its exterior, it did not appear to have damage that emanated from within the unit. There were badly damaged extension cords and a power strip with numerous inputs on the floor.

In consultation with forensic engineering colleagues at Anderson Engineering of New Prague, our investigator was able to determine that the origin of the fire was one of the extension cords and the cause was resistive heating, or too much power traveling through the cord.


Because of skillful interviewing, detailed analysis of the scene, and collaboration with in-house forensic specialists, Blaze Fire was successful in uncovering the origin and cause of this apartment fire, and the client was able to confidently determine their path to recovery.

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