Versatile & Efficient Custom Inductors
Control Transformer’s custom inductors are engineered to provide optimal performance in various applications, from current limiting to motor starting. Whether you need a dry-type or water-cooled solution, our inductors are designed to meet your specific power requirements while ensuring reliable operation and longevity.
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Frequency range: AC – 50 – 400 Hz standard / DC – to 20 kHz; high frequency as requested
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Built to UL / ANSI C57 construction and performance standards
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Tailored designs for load reactors, current limiting, motor starting and more
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Air core and iron core options for efficiency and flexibility across applications
As with all our products, our inductors are fully customizable. We build each product to fit our customers’ exact needs, including specifications for power, size, industry and more.
Dry-type Inductors
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Single-phase / Three-phase
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AC - 50 / 60 / 400 Hz standard / DC to 20 Khz
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High frequency as requested
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Broad induction ranges / High current to 10 KA / High voltage to 15KV
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Load / Current limiting / Air core / Iron core / Epoxy-encapsulated / Edge-wound / Toroidal
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6-pulse / 12-pulse / 18-pulse / 24-pulse / PWM / High efficiency / Low loss / Harmonic
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Copper or aluminum windings
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Standard core material – M6 / 29 ga. grain-oriented electrical steels / Additional higher-efficiency materials available
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Standard Nema or special enclosures available
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Fully customizable to customer specifications
Water-cooled Inductors
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Single-phase / Three-phase
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AC - 50 / 60 / 400 Hz standard / DC to 20 Khz
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High frequency as requested
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Broad Induction ranges / High current to 10 KA/ High voltage to 15KV
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Load reactors / Current limiting / Air core / Iron core / Epoxy-encapsulated / Toroidal
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6-pulse / 12 pulse / 18-pulse / 24-pulse / PWM / High efficiency / Low loss / Harmonic
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Brood ranges of tubing available/ Epoxy-encapsulated coils
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Standard core material – M6 / 29 ga. grain-oriented electrical steels / Additional higher efficiency materials available
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Standard Nema or special enclosures available
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Fully customizable to customer specifications
Built for Project Success
Custom Engineered
Tailored to meet exact specifications, in collaboration with each client
Reliable Performance
Less than 1% failure rate, 100% test approval before shipping
Countless Industry Solutions
Versatile performance across a range of demanding applications
UL C57 Compliance
Built with premium materials that meet industry standards
1-Year Warranty
Coverage for one year from the date of shipment
Made in the USA
Proudly manufactured in our Ohio-based facility
Discover the Latest from Control Transformer
Explore recent news items, updates and expert thought leadership from the Control Transformer team.
Inductors for Your Complex Industry Needs
We have the expertise and capabilities to meet OEMs’ inductor needs across a wide range of industries.
Control Transformer has consistently remained one of our most reliable suppliers over the years – providing us with a high-quality product, industry-leading engineering expertise and competitive lead times. By using Control Transformer products, we have ensured our projects’ success and maximize customer satisfaction.
Our organization has worked with Control Transformer for at least 50 years. In our challenging high-vibration application, where the quality of the product is paramount, we require the highest possible rating in the smallest possible package size, which requires a high level of customization. Their staff has always been very competent, courteous and professional in helping us to achieve success, promptly addressing our inquiries and concerns and providing us with first-class products that perform well in our application.
Control Transformer has been a valued strategic partner and supplier to our organization for over 25 years. During this time working with the CTI team, I have worked with all team members, from design engineers to shipping personnel and everything in between. Everyone is engaged and supportive of the custom requirements and quality that our company demands from a strategic partner.
Control Transformer's long-tenured employees take great pride in service and workmanship, which shows in all aspects of the products they produce. Everyone from the president to production is just a phone call away. Issues, albeit rare, are always handled in a timely manner, and they can be on-site or on a call as we require. Control Transformer is a testament to how all businesses should be managed and operated to service their customer with quality products to meet the timelines of customer production.
Find Your Custom Inductor Solution
Tell us about your inductor needs. We’ll give you an estimate of the resources needed to engineer a product to meet your exact specs, complete with a preliminary design.