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Used Allen-Bradley Power Transformers

  • Allen Bradley,1497-N8,Control Transformer Ser A

    Allen Bradley,1497-N8,Control Transformer Ser A

    • Manufacturer: Allen-Bradley

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $32 USD
    Galion, OH
  • ALLEN BRADLEY,40171-002-03,TRANSFORMER MODULE 480V

    ALLEN BRADLEY,40171-002-03,TRANSFORMER MODULE 480V

    • Manufacturer: Allen-Bradley

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $10 USD
    Galion, OH
  • Allen-Bradley,120883-04,Transformer 100VA NOS

    Allen-Bradley,120883-04,Transformer 100VA NOS

    • Manufacturer: Allen-Bradley

    New without original box, NOS. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictures to...

    $60 USD
    Galion, OH
  • Allen Bradley,800E-2TL5,Transformer Module

    Allen Bradley,800E-2TL5,Transformer Module

    • Manufacturer: Allen-Bradley

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $8 USD
    Galion, OH
  • Allen Bradley,1497-N11,Control Circuit Transformer NOS

    Allen Bradley,1497-N11,Control Circuit Transformer NOS

    • Manufacturer: Allen-Bradley

    New, box is extremely dirty from storage. NOS. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review...

    $95 USD
    Galion, OH
  • ALLEN BRADLEY,25634-141-01,TRANSFORMER .075KVA 240/480V

    ALLEN BRADLEY,25634-141-01,TRANSFORMER .075KVA 240/480V

    • Manufacturer: Allen-Bradley

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $20 USD
    Galion, OH
  • ALLEN-BRADLEY,X-208238,TRANSFORMER 120V 60/50CY NOS

    ALLEN-BRADLEY,X-208238,TRANSFORMER 120V 60/50CY NOS

    • Manufacturer: Allen-Bradley

    ALLEN-BRADLEY,X-208238,TRANSFORMER 120V 60/50CY NOS What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will...

    $15 USD
    Galion, OH
  • ALLEN BRADLEY,80022-197-12 3 KVA, TRANSFORMER

    ALLEN BRADLEY,80022-197-12 3 KVA, TRANSFORMER PRI 480V SEC 120V 1PH

    • Manufacturer: Allen-Bradley

    What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...

    $850 USD
    Galion, OH
  • Allen-Bradley,1487 N27,Control Circuit Transformer Ser

    Allen-Bradley,1487 N27,Control Circuit Transformer Ser B Type M 240/480V 60Hz

    • Manufacturer: Allen-Bradley

    Used and in good condition. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictures to ma...

    $80 USD
    Galion, OH
  • ALLEN BRADLEY,40022-050-03,DRY TYPE TRANSFORMER 25KV

    ALLEN BRADLEY,40022-050-03,DRY TYPE TRANSFORMER 25KV HV 480V LV 240V/120V 1PH

    • Manufacturer: Allen-Bradley

    WILL ARRANGE SHIPPING WITH BUYER 280LBS MEASURING 24X24X28 What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then ...

    $750 USD
    Galion, OH
  • Trusted Seller
    Allen Bradley 1388-T012DR Control Transformer

    Allen Bradley 1388-T012DR Control Transformer 1.25 KVA 240/480V 120V 3Ph

    • Manufacturer: Allen-Bradley

    Used, in Good Working Condition. Removed From a Working Environment If this item ships as Flat Rate Freight please see details in Shipping tab

    $765 USD
    Millersburg, IN
  • Trusted Seller
    ALLEN BRADLEY 1497-N8 SERIES A

    ALLEN BRADLEY 1497-N8 SERIES A TRANSFORMER ($50 OBO)

    • Manufacturer: Allen-Bradley

    “USED, EXCELLENT” ALLEN BRADLEY 1497-N8 SERIES A TRANSFORMER 250 VA 220/440 - 240/480VAC PRIMARY 50/60 HERTZ 100/120 VAC SECONDARY ***Local deliveries available, simply message us before purchasing so we can prop...

    $50 USD
    Waukesha, WI
  • Trusted Seller
    ALLEN BRADLEY 1497-N46PA TRANSFORMER ($70

    ALLEN BRADLEY 1497-N46PA TRANSFORMER ($70 OBO)

    • Manufacturer: Allen-Bradley

    “USED, EXCELLENT” ALLEN BRADLEY 1497-N46PA TRANSFORMER 60 HERTZ 240/480 PRIMARY VOLTAGE 24 SECONDARY VOLTAGE ***Local deliveries available, simply message us before purchasing so we can properly adjust the listin...

    $70 USD
    Waukesha, WI
  • Trusted Seller
    ALLEN BRADLEY 1497-N16 CONTROL TRANSFORMER

    ALLEN BRADLEY 1497-N16 CONTROL TRANSFORMER ($90 OBO)

    • Manufacturer: Allen-Bradley

    “USED, EXCELLENT” ALLEN BRADLEY 1497-N16 CONTROL TRANSFORMER .130 KVA SN TYPE 220/440V - 240/480V 50/60 HERTZ ***Local deliveries available, simply message us before purchasing so we can properly adjust the listi...

    $90 USD
    Waukesha, WI
  • Trusted Seller
    ALLEN BRADLEY 1497-N11 SERIES A

    ALLEN BRADLEY 1497-N11 SERIES A TRANSFORMER ($45 OBO)

    • Manufacturer: Allen-Bradley

    “USED, EXCELLENT” ALLEN BRADLEY 1497-N11 SERIES A TRANSFORMER 0.35 KVA 220/440 VAC PRIMARY 110/120 VAC SECONDARY 50/60 HERTZ ***Local deliveries available, simply message us before purchasing so we can properly a...

    $45 USD
    Waukesha, WI
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Overview

Power transformers transfer electrical energy between voltage levels for utilities, substations, and large industrial plants. These heavy, high-capacity units come in oil-filled or dry-type designs, with cooling classes (ONAN, ONAF, etc.), on-load tap changers, bushings and protection gear. Buyers must match voltage class, impedance, capacity (kVA/MVA), and cooling to system needs, and plan for foundation, handling, transport and commissioning.

FAQ

What specifications should I check when buying a used power transformer?

Confirm voltage ratios, kVA/MVA rating, impedance, cooling type, phase configuration, on-load tap changer condition, bushing types and insulation class, and recent test reports (DGA, insulation resistance, turns ratio).

How do I verify a used transformer's condition before purchase?

Request factory and maintenance records, Dissolved Gas Analysis (DGA), insulation resistance, power factor tests, sweep-frequency response (SFRA) and a visual inspection report for leaks, rust and bushing integrity.

What are the key shipping considerations for heavy power transformers?

Plan for specialized heavy-haul transport, load lifting equipment, route permits, weight/axle limits, skidding or cradling, draining oil if required by regulations, and coordination with local authorities for oversized loads.

What site preparations are needed before delivery and installation?

Prepare a level, rated foundation or skid with proper anchoring, ensure crane access and pad capacity, verify cable entry, grounding, oil containment for liquid-filled units, and arrange for qualified rigging and electrical commissioning crews.

What ongoing maintenance keeps a power transformer reliable?

Perform regular DGA, insulation resistance and oil quality tests, thermographic inspections, tap changer maintenance, bushing checks, cooling system inspections and timely repairs. Follow manufacturer intervals and keep detailed service records.