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Used Instrument Transformers

  • DIRECT PLUG-IN CLASS 2 TRANSFORMER

    DIRECT PLUG-IN CLASS 2 TRANSFORMER

      DIRECT PLUG-IN CLASS 2 TRANSFORMER System was de-installed in working operational condition. All returns must comply with stated Return Policy. Please continue: PAYMENT OPTIONS: We accept Paypal, Company Check...

      $16 USD
      Carpinteria, CA
    • OLYMPUS TOKYO TE-11 TRANSFORMER

      OLYMPUS TOKYO TE-11 TRANSFORMER

      • Manufacturer: Olympus

      Information:­­­­­­­ OLYMPUS TOKYO TE-11 TRANSFORMER Equipment demonstrations available upon request with an additional fee. All returns must comply with stated Return Policy. Please continue: PAYMENT OPTIONS: ...

      $199 USD
      Carpinteria, CA
    • USHIO LAMP HV TRANSFORMER 9500010

      USHIO LAMP HV TRANSFORMER 9500010

      • Manufacturer: Ushio

      USHIO LAMP HV TRANSFORMER 9500010 System was de-installed in working operational condition. All returns must comply with stated Return Policy. Please continue: PAYMENT OPTIONS: We accept Paypal, Company Check, Wi...

      $4,999 USD
      Santa Barbara, CA
    • Trancscendar Transformer B2 018

      Trancscendar Transformer B2 018

        INCLUDES: Trancscendar Transformer B2 018. System was de-installed in working operational condition. All returns must comply with stated Return Policy. Please continue: PAYMENT OPTIONS: We accept Paypal, Company ...

        $90 USD
        Santa Barbara, CA
      • Transcendar b2-025 Transformer

        Transcendar b2-025 Transformer

          INCLUDES: Transcendar b2-025 Transformer System was de-installed in working operational condition. All returns must comply with stated Return Policy. Please continue: PAYMENT OPTIONS: We accept Paypal, Company Ch...

          $88 USD
          Santa Barbara, CA
        • CLASS 2 TRANSFORMER EPA240050

          CLASS 2 TRANSFORMER EPA240050

            Information: CLASS 2 TRANSFORMER EPA240050 System was de-installed in working operational condition. All returns must comply with stated Return Policy. Please continue: PAYMENT OPTIONS: We accept Paypal, Company ...

            $12 USD
            Santa Barbara, CA
          • ADAPTER 620 CLASS 2 TRANSFORMER

            ADAPTER 620 CLASS 2 TRANSFORMER

              INFORMATION: ADAPTER 620 CLASS 2 TRANSFORMER System was de-installed in working operational condition. All returns must comply with stated Return Policy. Please continue: PAYMENT OPTIONS: We accept Paypal, Compan...

              $99 USD
              Santa Barbara, CA
            • AMERICAN OPTICAL TRANSFORMER MODEL 365

              AMERICAN OPTICAL TRANSFORMER MODEL 365

                Information: AMERICAN OPTICAL TRANSFORMER MODEL 365 System was de-installed in working operational condition. All returns must comply with stated Return Policy. Please continue: PAYMENT OPTIONS: We accept Paypal,...

                $64 USD
                Santa Barbara, CA
              • ACME TRANSFORMER T2 53011 S

                ACME TRANSFORMER T2 53011 S

                • Manufacturer: Acme

                INFORMATION: ACME TRANSFORMER T2 53011 S System was de-installed in working operational condition. All returns must comply with stated Return Policy. Please continue: PAYMENT OPTIONS: We accept Paypal, Company Ch...

                $199 USD
                Santa Barbara, CA
              • TGK STEPDOWN TRANSFORMER 1210-1.5K

                TGK STEPDOWN TRANSFORMER 1210-1.5K

                  INFORMATION: TGK STEPDOWN TRANSFORMER 1210-1.5K System was de-installed in working operational condition. All returns must comply with stated Return Policy. Please continue: PAYMENT OPTIONS: We accept Paypal, Com...

                  $99 USD
                  Santa Barbara, CA
                • VARIAC TYPE W50 Variac Variable

                  VARIAC TYPE W50 Variac Variable Transformer

                    Information: VARIAC TYPE W50 Variac Variable Transformer System was de-installed in working operational condition. All returns must comply with stated Return Policy. Please continue: TAXES & FEES: California Sale...

                    $980 USD
                    Santa Barbara, CA
                  • Patton 1010b MRJ11 Async transformer

                    Patton 1010b MRJ11 Async transformer isolated

                      Information: Patton 1010b MRJ11 Async transformer isolated System was de-installed in working operational condition. All returns must comply with stated Return Policy. Please continue: TAXES & FEES: California Sa...

                      $29 USD
                      Santa Barbara, CA
                    • ELC T5000UD Step up Converter

                      ELC T5000UD Step up Converter Transformer 856058008372

                        ELC T5000UD Step up Converter Transformer System was de-installed in working operational condition. All returns must comply with stated Return Policy. Please continue: PAYMENT OPTIONS: We accept Paypal, Company C...

                        $229 USD
                        Santa Barbara, CA
                      • Jerome Industries 115/230v ~ 50/60Hz

                        Jerome Industries 115/230v ~ 50/60Hz ~ 48VA~ 12V ~ 2A Medical Grade Transformer

                          PRIME MEDICAL INSTRUMENTS, INC. PRIMEMI.COM 310_595_1231 WhatsApp Jerome Industries, (ACUSON Siemens), 115/230v ~ 50/60Hz ~ 48VA~ 12V ~ 2A Medical Grade Transformer Used, tested, and is in excellent working condi...

                          $50 USD
                          Inglewood, CA
                        • H1OS MC-60L D.C. TRANSFORMER

                          H1OS MC-60L D.C. TRANSFORMER

                            INFORMATION: H1OS MC-60L D.C. TRANSFORMER System was de-installed in working operational condition. All returns must comply with stated Return Policy. Please continue: PAYMENT OPTIONS: We accept Paypal, Company C...

                            $185 USD
                            Santa Barbara, CA
                          45678

                          Overview

                          Instrument transformers (current and voltage transformers) reduce high voltages or currents to safe, measurable levels for metering, protection, and control. They must meet accuracy classes, insulation ratings, and short-circuit withstand requirements for their application. Buyers look for clear nameplates, calibration records, standards compliance (IEC/ANSI), and the right mounting or enclosure type. Available options include oil-filled or dry-type designs, single- or three-phase units, and various secondary ratios.

                          FAQ

                          What should I check when buying a used instrument transformer?

                          Verify nameplate data (ratio, class, burden, insulation level), calibration and test reports, physical condition, and history of overloads or faults. Confirm standards compliance and whether secondary terminals and accessories match your protection/metering equipment.

                          How do I ensure instrument transformers meet accuracy and safety requirements?

                          Request recent accuracy and insulation test certificates, lightning impulse and routine test results, and evidence of IEC/ANSI class ratings. For protection CTs, confirm T‑class or accuracy at specified fault currents and verify secondary burden compatibility.

                          What are best practices for shipping instrument transformers?

                          Securely brace units to prevent movement, protect bushings and terminals, and use moisture barriers for oil-filled types. Follow carrier rules for heavy loads, declare oil-filled equipment and hazardous materials if applicable, and insure for transport damage.

                          What maintenance and testing should be done after delivery?

                          Inspect for shipping damage, verify insulation and continuity, perform ratio and polarity checks, and run insulation resistance and power-frequency / excitation tests. For oil-filled units, sample oil and check for moisture and dielectric strength. Recalibrate as needed per manufacturer recommendations.