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17

Used operator interface in USA

  • Trusted Seller
    Piller Bypass Transfer Switch 5935

    Piller Bypass Transfer Switch 5935 MAUB(S6LLST13228)

      *Handling times for freight shipments average 5 days, but may vary depending on size, weight, location, and current trucking conditions. This does not include shipping time.* The Piller Bypass Transfer Switch 593...

      Shippensburg, PA
    • Trusted Seller
      Zenith 480V 600A Automatic Transfer

      Zenith 480V 600A Automatic Transfer Switch ZTSD61EC7AAAAAAAAAEPTU (SKU: 3102AA)(3102AA)

      • Manufacturer: Zenith

      *Handling times for freight shipments average 5 days, but may vary depending on size, weight, location, and current trucking conditions. This does not include shipping time.* The Zenith 480V 600A Automatic Transf...

      Shippensburg, PA
    • Trusted Seller
      Liebert Infinity Transfer Switch NMBHW41(S6LLST4240)

      Liebert Infinity Transfer Switch NMBHW41(S6LLST4240)

      • Manufacturer: Liebert - Vertiv

      *Handling times for freight shipments average 5 days, but may vary depending on size, weight, location, and current trucking conditions. This does not include shipping time.* Item Dimensions - L X W X H - 21X8X18...

      Shippensburg, PA
    • 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
    • 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
    • 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
    • Mitsubishi Electric MZT-53. Zero-Phase Current

      Mitsubishi Electric MZT-53. Zero-Phase Current Transformer. 6E-11

      • Manufacturer: Mitsubishi

      Mitsubishi Eletric MZT-53. Zero-phase current transformer. 6E-11 We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, PLC's, Sensors, Process...

      $44 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
    • ACME Transformer T-2-53007-S 240/480V 50/60Hz

      ACME Transformer T-2-53007-S 240/480V 50/60Hz 1 Phase. 4B-21

      • Manufacturer: Acme

      We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, PLC's, Sensors, Process Controls and Timers. Palmetto Automation Inc. of Duncan SC specializes in b...

      $39 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
    • 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
    • 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
    • Instrument Transformers E235509 Current Transformer

      Instrument Transformers E235509 Current Transformer STC4

      • Manufacturer: Instrument Transformers

      Instrument Transformers E235509 Current Transformer STC4 Here at Palmetto Automation Inc. we endeavor to provide otherwise high cost parts at decent wholesale prices. Buy with confidence. Money back guarante...

      $22 USD
      Duncan, SC
    • Square D 9070TF100D1 Transformer. Loc4D-25

      Square D 9070TF100D1 Transformer. Loc4D-25

      • Manufacturer: Square D

      Square D 9070TF100D1 Transformer. Loc4D-25* We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, PLC's, Sensors, Process Controls and Timers. Palmet...

      $83 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
    12

    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.