Family-owned & American-made since 1981 · Easton, Pennsylvania
Magnetics & Controls, Inc. Current Transformer Specialists
Made in the USA · Quick-Turn · No Minimums

American-Made Current Transformers — built while imports quote 13 to 52 weeks.

When your project can't wait a year for a CT, we build it here. Magnetics & Controls is a Pennsylvania current-transformer manufacturer and contract shop — from a single emergency replacement to production runs of several thousand.

1981
Building CTs Since
14,000+
Designs On Hand
1 pc
Minimum Order
100%
Made in USA
Why buyers are switching

The lead-time math has changed.

The U.S. is in a multi-year electrical-equipment shortage. Overseas suppliers now quote a year or more. We quote in weeks — and we're already trusted to blind-manufacture for major national brands.

Overseas & Volume Suppliers

13–52+ wks
Typical quoted lead time
  • Long ocean freight & customs delays
  • High minimum order quantities
  • Tariff and supply-chain exposure
  • Little flexibility for one-off or obsolete parts

Magnetics & Controls

Quick-Turn
Built in Easton, Pennsylvania
  • Made in the USA — no import lead time
  • No minimums — one piece to thousands
  • Reverse-engineer obsolete & OEM parts
  • 40+ years & 14,000+ designs on file
What we build

Current transformers for every demanding application.

Custom-engineered and OEM-replacement current transformers, built to your spec or reverse-engineered from an obsolete part.

🔄

Circuit Breaker Retrofit CTs

Drop-in current transformers for breaker retrofit and life-extension projects — including obsolete and discontinued units.

Learn more
📊

Metering & Relaying CTs

High-accuracy metering and protective-relay class current transformers, normally 0.1% to 2.4% accuracy.

Learn more

Zero-Sequence CTs

Ground-fault and zero-sequence current transformers for protection schemes and switchgear.

Learn more

Bar-Type CTs

Bar-type current transformers to 15 kV, in round, square, rectangular or oval form factors.

Learn more
🏭

CT Contract Manufacturing

Medium-volume and blind manufacturing for OEMs and brands — built to your design, shipped under your name.

Learn more
🔧

Reverse Engineering

Obsolete or discontinued CT? We reverse-engineer OEM parts — typically at no charge, and any exception is quoted to you up front before work begins.

Learn more
Engineering capability

A 40-year design library, behind every quote.

With more than 14,000 proven designs on file — and growing every day — plus an in-house engineering department, we can usually start from an established design instead of a blank sheet. That is a large part of how we move so fast.

  • Frequency: DC to 25,000 Hz
  • Primary current: 0.1 A to 20,000 A
  • Secondary current: 0.001 A to 10 A
  • Accuracy: normally 0.1% to 2.4%
  • Burden to 8000 VA
  • Varnish-impregnated or fully encapsulated
Frequency
DC – 25,000 Hz
Primary Current
0.1 – 20,000 A
Secondary
0.001 – 10 A
Accuracy
0.1% – 2.4%
Burden
to 8000 VA
Bar-Type
to 15 kV
Since
1981
Family-Owned · American-Made
Who we are

Trusted to build the parts other brands put their name on.

Magnetics & Controls has specialized in electro-magnetic components for power distribution since 1981. We're a family-owned Pennsylvania manufacturer, and many of our team have been here 15+ years — which is a big part of why our quality and reliability are consistent order after order.

We blind-manufacture current transformers for major national brands under NDA — the parts ship under their name, built by us. That same capability is available to your business, whether you need one obsolete replacement or a production run.

Explore Contract Manufacturing →

Need a current transformer faster than a year from now?

Send us your drawing, specification, a part to match, or even an obsolete part number. We'll tell you quickly whether we can build it — and when.

Request a Quote →