Family-owned & American-made since 1981 · Easton, Pennsylvania
Magnetics & Controls, Inc. Current Transformer Specialists

Metering & Relaying Current Transformers

High-accuracy metering and protective-relay class current transformers, built to your specification in the USA.

Precision when it counts

Accuracy for revenue metering and protection.

Metering and relaying current transformers carry a higher bar: revenue metering demands tight accuracy, and protective relaying demands predictable performance through fault conditions. Both have to be right.

We build metering and relay-class CTs to your specification — normally 0.1% to 2.4% accuracy, with burden to 8000 VA — engineered against our 14,000+ design library, designed and built to meet ANSI/IEEE C57.13, and manufactured to print in the USA.

Accuracy
0.1% – 2.4%
Burden
to 8000 VA
Frequency
DC – 25,000 Hz
Origin
Made in USA
Applications

Built for metering and protection schemes.

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Revenue & Sub-Metering

High-accuracy CTs for utility revenue metering, sub-metering, and power-quality monitoring.

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Protective Relaying

Relay-class CTs engineered for predictable performance through fault and overcurrent conditions.

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Instrumentation

Precision current sensing across a wide frequency range for test, measurement, and control.

Primary Current
0.1 – 20,000 A
Secondary
0.001 – 10 A
Ranges
Multiple taps
Designs On File
14,000+
Specifications

Engineered to your accuracy class.

Tell us your ratio, accuracy class, and burden, and we build to print — single or multiple primary and secondary ranges, in the form factor your application needs.

  • Designed and built to meet ANSI/IEEE C57.13
  • Accuracy normally 0.1% to 2.4%
  • Burden to 8000 VA
  • Multiple primary & secondary current ranges
  • Varnish-impregnated or fully encapsulated

Need a precise metering or relay-class CT?

Send your accuracy class, ratio, and burden requirements. We'll quote a CT built to your spec — and tell you exactly when it ships.

Request a Quote →