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.

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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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2 minutes reading time (401 words)

Using Drip Loops Could Save Your Fish and Your Home

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

Saltwater aquariums are fascinating and beautiful.  Having a little piece of the ocean inside your home has been attracting hobbyist for years.   However, not all hobbyists are aware of the dangers and risks that are associated with keeping a saltwater aquarium.

It was the start of a beautiful day in Memphis, TN until the owners of a 90 gallon saltwater aquarium woke up to the smoke alarm sounding in their home.  They ran into the living room and saw flames shooting up behind their aquarium.  They immediately grabbed the phone, called 9-1-1 and ran out of the house.  The fire department came and extinguished the fire. Unfortunately, the glass tank broke during the course of the fire and all the aquarium inhabitants were lost.

Our team of experts examined and photographed the fire scene and collected all of the aquarium equipment in the home. The aquarium equipment consisted of a water pump, heater, protein skimmer and two fluorescent light fixtures.  All of this equipment was plugged into a relocatable power tap that was located on the floor behind the aquarium.  A detailed examination of all of the aquarium equipment showed the most severe damage was located at the power tap.  The power tap’s plastic housing was melted and charred and sections of the hot and neutral busses were visible.  See photographs below.

A simple drip loop would have prevented this damage and resulting fire.A simple drip loop would have prevented this damage and resulting fire.

The hot and neutral busses showed evidence of melting and a short section of both of the buses was melted away.  Analysis showed that arcing occurred between the line and neutral busses in the power tap.  These busses are normally separated by an air gap and insulating plastic material.  In order for an arcing event to occur internal to the power tap, a current path must be established across the insulating materials.  Arcing across an insulating material is known as arc tracking and is commonly due to contamination on the insulating surfaces.  In this case the contamination was caused by the saltwater from the aquarium. 

Power taps used with aquarium equipment should be mounted vertically to avoid moisture falling into them.  Drip loops should also be used on power cords that enter the aquarium to avoid water flowing down the cord and into the power tap. If you are a hobbyist and own an aquarium, make sure you use drip loops and that you are using your equipment safely. 

What is hidden in that piece of char?
Space heaters, use with caution!