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Used Current Transformer (Ct) in Germany

  • Siemens 4NC3617 0CE03 Current transformer

    Siemens 4NC3617 0CE03 Current transformer 100 / 1A E Stand 01

    • Manufacturer: Siemens

    Siemens 4NC3617-0CE03 Current transformer 100 / 1A, 50-60Hz, E-Stand 01 , unused in opened original packaging, 100% functional, scope of delivery as per photos

    $12 USD
    Remscheid, Germany
  • MBS ASK 41.4 / 300

    MBS ASK 41.4 / 300 Plug-on current transformer 5A 50 60Hz No. 00/CU23513

    • Manufacturer: MBS

    MBS ASK 41.4 / 300 plug-on current transformer 5A 50 - 60Hz No. 00/CU23513, used, good condition, 100% functional, scope of delivery according to photos

    $7 USD
    Remscheid, Germany
  • DAHMS ASK 31.3 Current transformer

    DAHMS ASK 31.3 Current transformer

    • Manufacturer: DAHMS

    DAHMS ASK 31.3 current transformer , used, good condition, 100% functional, scope of delivery acc. to photos

    $9 USD
    Remscheid, Germany
  • Faget RM60 E2 current transformer

    Faget RM60 E2 current transformer

    • Manufacturer: Faget

    Faget RM60-E2 current transformer , used, normal traces of use, 100% functional, scope of delivery according to photos

    $10 USD
    Remscheid, Germany
  • Long TAC032300X05 Current transformer

    Long TAC032300X05 Current transformer

    • Manufacturer: Langer

    Long TAC032300X05 current transformer , used, small traces of use, 100% functional, scope of delivery according to photos

    $17 USD
    Remscheid, Germany
  • Dahms 7072 ASK 31.5 Plug

    Dahms 7072 ASK 31.5 Plug on current transformer

    • Manufacturer: DAHMS

    Dahms 7072 ASK 31.5 plug-on current transformer, used, small traces of use, 100% functional, scope of delivery according to photos

    $12 USD
    Remscheid, Germany
  • ROHS CSLA2EJ 1024 MEX Current

    ROHS CSLA2EJ 1024 MEX Current transformer motor 30kW

    • Manufacturer: RoHS

    ROHS CSLA2EJ 1024 MEX Micro Switch current transformer motor 30kW , used, good condition, 100% functional, scope of delivery according to photos

    $23 USD
    Remscheid, Germany
  • ROHS CSLA2EJ 1240 MEX Current

    ROHS CSLA2EJ 1240 MEX Current transformer motor 30kW

    • Manufacturer: RoHS

    ROHS CSLA2EJ 1240 MEX Micro Switch current transformer motor 30kW, used, good condition, 100% functional, scope of delivery according to photos

    $23 USD
    Remscheid, Germany
  • MBS ASK 31.3 Plug-on current

    MBS ASK 31.3 Plug-on current transformer Primary current in A 100 /

    • Manufacturer: MBS

    MBS ASK 31.3 Plug-on current transformer Primary current in A: 100 / Secondary current in A: 1 / Apparent power (VA): 2.5 / Accuracy class: 1 , used, minor signs of wear, 100% functional, scope of delivery as per...

    $7 USD
    Remscheid, Germany
  • ROHS CLAS2GD 0633 MEX Current

    ROHS CLAS2GD 0633 MEX Current transformer motor 7.5 kW

    • Manufacturer: RoHS

    ROHS CLAS2GD 0633 MEX Micro Switch current transformer motor 7.5 kW, used, good condition, 100% functional, scope of delivery according to photos

    $9 USD
    Remscheid, Germany
  • ROHS CSLA2GD 0649 MEX Current

    ROHS CSLA2GD 0649 MEX Current transformer motor 7.5kW

    • Manufacturer: RoHS

    ROHS CSLA2GD 0649 MEX Micro Switch current transformer motor 7.5kW, used, good condition, 100% functional, scope of delivery according to photos

    $9 USD
    Remscheid, Germany
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    SGB DOTEL 1600 H/20

    • Manufacturer: SGB

    Three-phase oil transformer in hermetic design rated power 1600 kVA, rated ratio 20 / 0.69 kV condition: overhauled description: currently rented!

    Blankenfelde-Mahlow, Germany
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    SBG DOTEL 400/20

    • Manufacturer: SGB

    Three-phase oil transformer in hermetic design rated power 400 kVA, rated ratio 20 / 0.4 kV condition: overhauled description: currently rented!

    Blankenfelde-Mahlow, Germany
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    SGB DOTEL 1600 H/20

    • Manufacturer: SGB

    Three-phase oil transformer in hermetic design. rated power 1600 kVA, rated transmission 20 / 0,69 kV condition: overhauled

    Blankenfelde-Mahlow, Germany
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    2006 ABB TNOSCTN-10/20-10PNS

    • Manufacturer: ABB

    Three-phase oil-filled transformer in hermetic design Rated power 160 kVA, Rated ratio 20-10 / 0.4 kV Condition: Refurbished Description: Currently leased!

    Blankenfelde-Mahlow, Germany
34567

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.