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Used Isolation Transformers

  • Trusted Seller
    Multi-output toroidal power transformer

    Multi-output toroidal power transformer

      NAME: MULTI-OUTPUT TOROIDAL POWER TRANSFORMER Use and Description: This is a multi-output toroidal power transformer designed for a variety of electronic applications, with a particular emphasis on medical elec...

      Please contact Harry (09159447627)
    • Trusted Seller
      EGS 27 kVA Transformer DT651H27S

      EGS 27 kVA Transformer DT651H27S #84720

      • Manufacturer: EGS

      Hevi-Duty Shielded Drive Isolation Transformer 27 kVA 3 Phase 60 Hz High Voltage: 460 Delta Low Voltage: 460Y/266 Expedited shipping services are available This piece is located at Ideal Machinery, Inc. on our ...

      $386 USD
      Warehouse
    • Trusted Seller
      GENERAL ELECTRIC 75 kVA Drive

      GENERAL ELECTRIC 75 kVA Drive Isolation Transformer 9T23B4007G23 Used

      • Manufacturer: GE

      75 kVA 460 Primary Voltage (Delta) 230/133 Secondary Voltage (Y) 3 Phase 60 Hz Type QL Tested Good Expedited shipping services are available This piece is located at Ideal Machinery, Inc. on our showroom floor...

      $1,495 USD
      Warehouse
    • Trusted Seller
      ESR Pollmeier Three-Phase isolation transformer

      ESR Pollmeier Three-Phase isolation transformer 400V / 400Vac

      • Manufacturer: ESR Pollmeier

      ESR Pollmeier Three-Phase isolation transformer 400V / 400Vac Configured for 400V/90V It was used to supply power to servo drives on a Paste dispensing tool Tool was a working tool before we dismantled it. 19...

      $500 USD
      Trim, Ireland
    • Trusted Seller
      Auction
      HPS Sentinal G Transformer w

      HPS Sentinal G Transformer w Safety Switch

        HPS Sentinal G Transformer w/ Safety Switch, Transformer HV/HT 240/480v, LV/BT 120/240v, 15 KVA w/ (1) Square D Heavy Duty Safety Switch, 30A Rating

        United Kingdom
      • Trusted Seller
        2016 Meng Merot Sodex Transformer

        2016 Meng Merot Sodex Transformer Three-phase

          Meng Merot Sodex Transformer Three-phase (2016) REF 2300 MENG MEROT-SODEX Transformer Three-phase Isolation rating transformer 2016 160 KVA 400V / 400V 240A 50Hz

          Bordeaux, France
        • Trusted Seller
          Legrand 42428 630 VA isolation

          Legrand 42428 630 VA isolation transformer, 230/400 V primary to 115 V secondary

          • Manufacturer: Legrand
          • Phase type: Three-phase

          The Legrand 42428 isolation transformer is a high-quality 630 VA transformer for galvanic isolation and voltage conversion between a primary voltage of 230/400 V and a secondary voltage of 115 V. Designed for saf...

          $110 USD
          Borken, Germany
        • Trusted Seller
          WYES transformer

          WYES transformer

            Transformer, control transformer, single-phase transformer, isolating transformer, safety transformer WYES Model WYNC22-300T Noise Cut Transformer 0.3 kVA (300 VA) 50/60 Hz New!

            $214 USD
            Zschepplin, Germany
          • Trusted Seller
            RIEDEL isolation transformer

            RIEDEL isolation transformer

              Isolating transformer, three-phase isolating transformer M. RIEDEL TRANSFORMERS DRUI 4400 (DRUI4400) 20kVA Prim. 3 x 475 - 525 V AC sec. 3 x 400 V AC 28.8 A 50 - 60 Hz unused!

              $1,060 USD
              Zschepplin, Germany
            • Trusted Seller
              RIEDEL isolation transformer

              RIEDEL isolation transformer

                Isolating transformer, three-phase isolating transformer M. RIEDEL TRANSFORMERS RDRKL 25 S (RDRKL25S) 0.8 kVA Prim. 3 x 380V sec. 24 V DC 25 A 50 - 60 Hz Spare part for TRAUB TND300! used, with downstream three-p...

                $214 USD
                Zschepplin, Germany
              • Trusted Seller
                RIEDEL isolation transformer

                RIEDEL isolation transformer

                  Isolating transformer, three-phase isolating transformer M. RIEDEL TRANSFORMERS RDRKG 40KM (RDRKG40KM) 1.2 kVA Prim. 3 x 230/400 - 480 V sec. 24 V DC 40 A 50 - 60 Hz with a three-phase bridge rectifier downstream !

                  $191 USD
                  Zschepplin, Germany
                • Trusted Seller
                  RIEDEL isolation transformer

                  RIEDEL isolation transformer

                    Isolating transformer, three-phase isolating transformer M. RIEDEL TRANSFORMERS 3 UI 120/75 (3UI120 /75) 5.0 kVA Prim. 3 x 400V sec. 3 x 220 V AC 13.12 A 50 - 60 Hz Spare part for TRAUB TND300! Used !

                    $346 USD
                    Zschepplin, Germany
                  • Trusted Seller
                    BLOCK isolating transformer

                    BLOCK isolating transformer

                      isolation transformer BLOCK ETTK1000 1.0 kVA 50 - 60 Hz IP67 Used!

                      $429 USD
                      Zschepplin, Germany
                    • Trusted Seller
                      SIEMENS isolation transformer

                      SIEMENS isolation transformer

                      • Manufacturer: Siemens

                      Control transformer, control transformer SIEMENS SIDAC T 4AP2595-0BA00-8A 6.3 kVA Prim. 500V 3AC sec. 380V 3AC 50 - 60 Hz unused!

                      $536 USD
                      Zschepplin, Germany
                    • Trusted Seller
                      PAGUS Mobile Isolation Transformer

                      PAGUS Mobile Isolation Transformer

                      • Manufacturer: Pagus

                      Mobile isolating transformer, extra-low voltage transformer PAGUS 300VA 42V Transformer core ( UI - 90 ): length: 150 mm, width: 90 mm, thickness: 50 mm used, checked!

                      $179 USD
                      Zschepplin, Germany
                    2930313233

                    Overview

                    Isolation transformers provide electrical separation between the supply and the load to reduce electrical noise, prevent ground loops, and improve personnel and equipment safety. Common in industrial and control applications, they come in dry or oil-filled designs, single- or three-phase, and a wide range of kVA ratings. They protect sensitive electronics and stabilize power for panels, drives, and mobile equipment charging.

                    FAQ

                    What should I consider when buying a used isolation transformer?

                    Check kVA rating, primary/secondary voltages, phase, impedance, insulation condition, nameplate details and test records. Verify oil condition for oil-filled units, look for corrosion or damage, and request recent ratio and insulation resistance tests.

                    How do I ensure the isolation transformer is shipped safely?

                    Use a carrier experienced with heavy electrical gear, secure lifting points and skids, drain oil if required and comply with hazmat rules for oil-filled units. Crate or brace the unit, label weight and center of gravity, and insure for transit.

                    What is the maintenance schedule for an isolation transformer?

                    Perform visual checks monthly, tighten connections and inspect bushings yearly, carry out insulation resistance and turns-ratio tests annually, do oil sampling and treatment per manufacturer intervals, and use thermography for load checks.