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Current Transformers

Hoyt carries a full line of solid core instrument transformers, relay class transformers, and split core transformers. Most products are UL Recognized and CSA Approved. Solid core instrument transformers under the MagnaCore brand are stocked in common ranges.

Items 1 to 10 of 16 total

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  1. Magna-Core 2RL Series, Current Transformers, Instrument Class, 50 to 400 Amps, 1.05" Diameter Window

    Magna-Core 2RL Series, Current Transformers, Instrument Class, 50 to 400 Amps, 1.05" Diameter Window

    The Magna-Core 2RL Series current transformers are used with analog or digital ammeters. They feature #16 AWG , 24" long leads that are UL 1015 105°C, CSA approved. Learn More
  2. 3SP Series, Split Core Transformers, 100 to 1200 Amps, 2.19" x 3.25" Window

    3SP Series, Split Core Transformers, 100 to 1200 Amps, 2.19" x 3.25" Window

    3SP Series can be split apart and reassembled onto the primary conductor without interrupting service. They conform to UL 1244, ANSI C57.13 and applicable IEC standards. Learn More
  3. 5SP Series,  Split Core Transformers, 300 to 2000 Amps, 2.88" x 4.25"  Window

    5SP Series, Split Core Transformers, 300 to 2000 Amps, 2.88" x 4.25" Window

    5SP Series can be split apart and reassembled onto the primary conductor without interrupting service. They conform to UL 1244, ANSI C57.13 and applicable IEC standards. Learn More
  4. 1SP Series, Split Core Current Transformers, 100 to 400 Amps, 2" x 0.084" Window

    1SP Series, Split Core Current Transformers, 100 to 400 Amps, 2" x 0.084" Window

    1SP Series can be split apart and reassembled onto the primary conductor without interrupting service. They conform to UL 1244, ANSI C57.13 and applicable IEC standards. Learn More
  5. 1000:1 Current Transformer, Instrument Class, Up to 100 Amps, 0.8" Window

    1000:1 Current Transformer, Instrument Class, Up to 100 Amps, 0.8" Window

    The 1000:1 or 1000/1 current transformer is used with both analog and digital panel meters up to 100 Amps. The transformer is fully encapsulated and includes standard 18″ leads. Learn More
  6. 781MR Series, Current Transformer, Relay Class, 100 Amps to 4000 Amps, 6.5" Window

    781MR Series, Current Transformer, Relay Class, 100 Amps to 4000 Amps, 6.5" Window

    The 781MR series is available in C100 or C200 relay class. Secondary terminals are No. 10-32 brass screws with mounting hardware. Learn More
  7. Magna-Core 8SHT Series, Current Transformer, Instrument Class, 200 Amps to 2000 Amps, 3.25" Window

    Magna-Core 8SHT Series, Current Transformer, Instrument Class, 200 Amps to 2000 Amps, 3.25" Window

    The Magna-Core 8SHT series is used with ammeters, wattmeters, and cross current compensation. The 24" flexible leads are UL 1015 105°C, CSA approved #16 AWG wire. Non-standard lengths to be specified. Learn More
  8. Magna-Core 8RL Series, Current Transformer, Instrument Class, 200 Amps to 2000 Amps, 3.25" Window

    Magna-Core 8RL Series, Current Transformer, Instrument Class, 200 Amps to 2000 Amps, 3.25" Window

    The Magna-Core 8RL series is used with ammeters, wattmeters, and cross current compensation. The 24" flexible leads are UL 1015 105°C, CSA approved #16 AWG wire. Non-standard lengths to be specified. Learn More
  9. Magna-Core 7SFT Series, Current Transformer, Instrument Class, 100 Amps to 1600 Amps, 2.50" Window

    Magna-Core 7SFT Series, Current Transformer, Instrument Class, 100 Amps to 1600 Amps, 2.50" Window

    The Magna-Core 7SFT series is used with ammeters, wattmeters, and cross current compensation. The terminals are brass studs No. 8-32 UNC with mounting hardware. Learn More
  10. Magna-Core 7RL Series, Current Transformer, Instrument Class, 100 Amps to 1600 Amps, 2.50" Window

    Magna-Core 7RL Series, Current Transformer, Instrument Class, 100 Amps to 1600 Amps, 2.50" Window

    The Magna-Core 7RL series is used with ammeters, wattmeters, and cross current compensation. The 24" flexible leads are UL 1015 105°C, CSA approved #16 AWG wire. Non-standard lengths to be specified. Learn More

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