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Used control technology in 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...

      $210 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 !

        $187 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 !

          $338 USD
          Zschepplin, Germany

        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.