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Used pull type in USA

  • SIEMENS MT0050A Series 2 Control

    SIEMENS MT0050A Series 2 Control Transformer, 50VA. 4D-40

    • Manufacturer: Siemens

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $45 USD
    Duncan, SC
  • MTE RL-00402 3-Phase Reactor Transformer,

    MTE RL-00402 3-Phase Reactor Transformer, 4/6A, 600V, 50/60Hz. 4E-51

    • Manufacturer: MTE

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $24 USD
    Duncan, SC
  • EKM Metering SCT-032-400 400A, 26.6

    EKM Metering SCT-032-400 400A, 26.6 mA Split Core Current Transformer 4A

    • Manufacturer: EKM Metering

    New industrial automation parts pulled from storage or the working environment. Tested to the best of our ability. Shows signs of normal use. Here at Palmetto Automation Inc. we endeavor to provide otherwise high...

    $32 USD
    Duncan, SC
  • MTE RL-00104 Line Transformer, 600VAC,

    MTE RL-00104 Line Transformer, 600VAC, 1/1.5A, 50/60Hz. 4E-51

    • Manufacturer: MTE

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $86 USD
    Duncan, SC
  • ALLEN BRADLEY 1497-N5PK Ser A

    ALLEN BRADLEY 1497-N5PK Ser A CONTROL CIRCUIT TRANSFORMER. 4F-36

    • Manufacturer: Allen-Bradley

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $135 USD
    Duncan, SC
  • Aihara NYS21-1K 1KVA 50/60Hz Transformer

    Aihara NYS21-1K 1KVA 50/60Hz Transformer Pri. 210-230V Sec. 100-110V 4E

    • Manufacturer: AIHARA

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $225 USD
    Duncan, SC
  • YORK MW0450-L13 Current Transformer. 4H

    YORK MW0450-L13 Current Transformer. 4H

    • Manufacturer: York

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $179 USD
    Duncan, SC
  • HOLEC HH / EATON Current

    HOLEC HH / EATON Current Transformer HF5 4C

    • Manufacturer: Eaton

    Used automation parts pulled from storage or the working environment. Tested to the best of our ability. Shows signs of normal use. Here at Palmetto Automation Inc. we endeavor to provide otherwise high cost part...

    $86 USD
    Duncan, SC

Overview

Current transformers (CTs) convert high alternating currents into a scaled secondary current for meters, relays and protection systems. Available as window, wound or bar types, CTs vary by ratio, accuracy class and saturation behavior. Proper selection focuses on rated primary current, burden, insulation, knee-point for protection use, and condition when buying used for substations, switchgear, or industrial panels.

FAQ

What should I check when buying a used CT?

Verify the nameplate ratio and accuracy class, inspect for physical damage or oil leaks, request recent ratio and insulation test reports, and confirm the CT type (wound/window/bar) and its knee-point if used for protection.

How should a CT be prepared and shipped safely?

Drain and seal oil-filled CTs if required, protect bushings and cores, short and ground the secondary terminals, secure the unit to prevent shock, and use a carrier experienced with electrical equipment plus insurance.

What routine maintenance and tests are essential for CTs?

Perform visual inspections, insulation resistance tests, ratio and polarity checks, check for oil contamination on liquid-filled units, and schedule periodic accuracy and dielectric tests per manufacturer guidelines.