Skip to main content
eBay Logo

Shop by category

Advanced
    • Daily Deals
    • Brand Outlet
    • Help & Contact
    • Sell
    • WatchlistExpand Watch List
      Loading...
      Sign in to see your user information
    • My eBayExpand My eBay
      • Summary
      • Recently Viewed
      • Bids/Offers
      • Watchlist
      • Purchase History
      • Buy Again
      • Selling
      • Saved Searches
      • Saved Sellers
      • My Garage
      • Messages
      • Collection beta
      • The eBay vault
    • Expand Cart
      Loading...
      Something went wrong. View cart for details.
    {"delay":300}

    There seems to be a problem serving the request at this time

    breadcrumb

    • eBay
      • Business & Industrial
      • Electrical Equipment & Supplies
    • Business & Industrial
    • Electrical Equipment & Supplies
    • Transformers
    • Autotransformers

    Autotransformers

    Side Refine Panel

    Shop by Category

    • Transformers
    • Autotransformers
    • Current Transformers
    • Industrial Control & General Purpose Transformers
    • Pulse Transformers
    • Power Transformers
    • Telecom & Audio Transformers
    • Transformer Accessories

    Best Selling

    See All- Best Selling
    • Uyoyous (20-0234) 20A 110V to 0-130V Variable Converter Transformer, Red
      Uyoyous (20-0234) 20A 110V to 0-130V Variable Converter Transformer, Red
      (1)Total Ratings 1
      $58.29 New
    • VEVOR BYQTDGC-2KVA00001V1 Variac - Red
      VEVOR BYQTDGC-2KVA00001V1 Variac - Red
      (32)Total Ratings 32
      $86.25 New
    • VEVOR TDGC-1KVA Variac Autotransformer
      VEVOR TDGC-1KVA Variac Autotransformer
      (6)Total Ratings 6
      $52.90 New
    • GE ProLine Getr480/277-250W Step Down Transformer - 74119
      GE ProLine Getr480/277-250W Step Down Transformer - 74119
      $22.00 New
      $5.00 Used
    • Victron Energy 100A 120/240V AC Autotransformer
      Victron Energy 100A 120/240V AC Autotransformer
      (1)Total Ratings 1
      $727.60 New
      $599.18 Used
    • Variac Variable AC Power Transformer With Meter 0-130 V Max 20a US
      Variac Variable AC Power Transformer With Meter 0-130 V Max 20a US
      (5)Total Ratings 5
      $58.49 New
    • Superior Electric 3PN116C 120V 10A Transformer
      Superior Electric 3PN116C 120V 10A Transformer
      (5)Total Ratings 5
      $1,032.21 New
      $139.99 Used
    • TRANE TRR00769 AUTO TRANSFORMER 1000VA 208/230/277 VOLTS 60 HZ 210882
      TRANE TRR00769 AUTO TRANSFORMER 1000VA 208/230/277 VOLTS 60 HZ 210882
      $999.00 New
    • All

    • Auction

    • Buy It Now

    • Best Match
    • Time: ending soonest
    • Time: newly listed
    • Price + Shipping: lowest first
    • Price + Shipping: highest first
    • Distance: nearest first
    • List View

    2,852 Results

      • 120/240 V
      • 24 V
      • 110 V
      • 115 V
      • 240/480 V
      • 120 V
      • 220 V
      • 230 V
      • 240 V
      • 277 V
      • 480 V
      • 500 V
      • Variac
      • Autotransformer
      • 1
      • 3
      • STACO
      • Superior
      • Unbranded
      • Standard
      • Teradyne
      • Ohmite
      • AMP
      • Hammond
      • Advance
      • GE
      • Electric
      • Magnetek
      • Stancor
      • All Listings filter applied
    • 5Amp Variable Transformer 500VA 0-130V AC Voltage Regulator Metered LCD Display

      5Amp Variable Transformer 500VA 0-130V AC Voltage Regulator Metered LCD Display

      $54.79
      or Best Offer
      128 sold
      SPONSORED
    • 110V 500VA Variable Transformer With Digital Display LCD 60Hz 0-130V AC Voltage

      110V 500VA Variable Transformer With Digital Display LCD 60Hz 0-130V AC Voltage

      $55.79
      or Best Offer
      SPONSORED
    • 20Amp Variac Transformer Variable AC Voltage Regulator Metered 2000VA 0-130V

      20Amp Variac Transformer Variable AC Voltage Regulator Metered 2000VA 0-130V

      (32)32 product ratings - 20Amp Variac Transformer Variable AC Voltage Regulator Metered 2000VA 0-130V
      $58.30
      or Best Offer
    • 20Amp Variac Transformer Variable AC Voltage Regulator Metered 2000VA 0-130V

      20Amp Variac Transformer Variable AC Voltage Regulator Metered 2000VA 0-130V

      (1)1 product ratings - 20Amp Variac Transformer Variable AC Voltage Regulator Metered 2000VA 0-130V
      $58.29
      or Best Offer
      170 sold
    • Variac Transformer Variable 1000VA AC Voltage Regulator 10Amp 0~130V US Plug

      Variac Transformer Variable 1000VA AC Voltage Regulator 10Amp 0~130V US Plug

      (6)6 product ratings - Variac Transformer Variable 1000VA AC Voltage Regulator 10Amp 0~130V US Plug
      $52.90
      or Best Offer
    • VEVOR Bench Top 20 Amp Variable Auto Transformer with LCD Digital Display

      VEVOR Bench Top 20 Amp Variable Auto Transformer with LCD Digital Display

      $79.99
      or Best Offer
    • Powerstat variable autotransformer

      Powerstat variable autotransformer

      $20.00
      0 bids
      $15.70 shipping
      Ending Friday at 11:51AM PDT5d 11h
    • STACO ENERGY  Type 3PN171 Variable Autotransformer TESTED WORKING

      STACO ENERGY Type 3PN171 Variable Autotransformer TESTED WORKING

      $39.00
      0 bids
      $14.50 shipping
      Ending Apr 9 at 7:31PM PDT7d 19h
    • POWERSTAT Superior Electric Powerstat Variable Autotransformer 115 V

      POWERSTAT Superior Electric Powerstat Variable Autotransformer 115 V

      $80.00
      18 watching
    • Powerstat 3PN117C Variable Autotransformer

      Powerstat 3PN117C Variable Autotransformer

      $55.00
      0 bids
      $53.24 shipping
      Ending Saturday at 5:20PM PDT6d 17h
      or Best Offer
    • Variac TYPE W2 120V 2.4A General Radio Co Panel Mount Variable AC Transformer

      Variac TYPE W2 120V 2.4A General Radio Co Panel Mount Variable AC Transformer

      $25.00
      1 bid
      $9.99 shipping
      Ending Today at 5:00PM PDT16h 48m
    • 20Amp Variac Transformer Variable AC Voltage Regulator Metered 2000VA 0-130V

      20Amp Variac Transformer Variable AC Voltage Regulator Metered 2000VA 0-130V

      $55.99
      Free shipping
    • Superior Electric Powerstat Variac Model 116

      Superior Electric Powerstat Variac Model 116

      $60.00
      $35.00 shipping
      or Best Offer
    • POWERSTAT VARIAC

      POWERSTAT VARIAC

      $175.00
      $22.12 shipping
      or Best Offer
      Benefits charity
      SPONSORED
    • THE SUPERIOR ELECTRIC Co POWERSTAT variable transformer / variac w/ scale & knob

      THE SUPERIOR ELECTRIC Co POWERSTAT variable transformer / variac w/ scale & knob

      $59.89
      Free shipping
      or Best Offer
      SPONSORED
    • 2000W Variable Transformer AC Voltage 0-230V 110V Universal Plug Iron (Shell)

      2000W Variable Transformer AC Voltage 0-230V 110V Universal Plug Iron (Shell)

      $64.15
      Was: $74.59
      or Best Offer
      278 sold
      SPONSORED
    • Superior Electric No. 116 POWERSTAT Variable Autotransformer 120in 140out 7.5Amp

      Superior Electric No. 116 POWERSTAT Variable Autotransformer 120in 140out 7.5Amp

      $99.00
      $15.00 shipping
    • 20Amp Variac Transformer Variable AC Voltage Regulator Metered 0-130V 2000VA

      20Amp Variac Transformer Variable AC Voltage Regulator Metered 0-130V 2000VA

      $55.98
      Free shipping
    • ✅20Amp Variac Transformer Variable AC Voltage Regulator Metered 2000VA 0-130V✅

      ✅20Amp Variac Transformer Variable AC Voltage Regulator Metered 2000VA 0-130V✅

      $55.97
      Free shipping
    • vintage Ohmite VT5F Variable Transformer 5 Amp 0-140 Volts DIMMER 

      vintage Ohmite VT5F Variable Transformer 5 Amp 0-140 Volts DIMMER 

      $60.00
      $22.00 shipping
    • Staco 3PN1010 Variable Autotransformer Output 0-120/140V *Non-Standard Plug

      Staco 3PN1010 Variable Autotransformer Output 0-120/140V *Non-Standard Plug

      (24)24 product ratings - Staco 3PN1010 Variable Autotransformer Output 0-120/140V *Non-Standard Plug
      $95.00
      $12.50 shipping
    • Powerstat Type 246, Superior Electric Co., 240 V 15 Amp autotransformer, Tested

      Powerstat Type 246, Superior Electric Co., 240 V 15 Amp autotransformer, Tested

      $599.95
      $42.15 shipping
      or Best Offer
    • 5Amp Variac Transformer Variable 500VA AC Voltage Regulator 110V 0-130V

      5Amp Variac Transformer Variable 500VA AC Voltage Regulator 110V 0-130V

      $37.94
      Was: $46.84
      Free shipping
      87 sold
    • Superior Powerstat Type 21 Variable Autotransformer 0.63 kVA 4.5 Amps 0-140 VAC

      Superior Powerstat Type 21 Variable Autotransformer 0.63 kVA 4.5 Amps 0-140 VAC

      $9.99
      1 bid
      $17.65 shipping
      Ending Today at 5:20PM PDT17h 9m
    • 500/1000/2000/3000VA Variac Variable Transformer Singe Phase  Durability POPULAR

      500/1000/2000/3000VA Variac Variable Transformer Singe Phase Durability POPULAR

      $54.99 to $65.99
    • General Radio Company - Variac Auto Transformer  Type W2M - Tested

      General Radio Company - Variac Auto Transformer Type W2M - Tested

      $119.99
      $18.00 shipping
      or Best Offer
    • General Radio W20HMT3A Metered Variac 0-280V 8 Amps 240V  NSN 59509260742 NIB

      General Radio W20HMT3A Metered Variac 0-280V 8 Amps 240V NSN 59509260742 NIB

      $350.00
      $30.00 shipping
      18 watching
    • Technipower W20HMT3A Double Metered Variac 0-300V 10 Amps. For Parts/Repair

      Technipower W20HMT3A Double Metered Variac 0-300V 10 Amps. For Parts/Repair

      $160.00
      $40.00 shipping
      or Best Offer
      SPONSORED
    • GE PROLINE Ballast Step Down Autotransformer 60Hz 74119 GETR480/277-250W NEW 6pc

      GE PROLINE Ballast Step Down Autotransformer 60Hz 74119 GETR480/277-250W NEW 6pc

      $149.99
      or Best Offer
      SPONSORED
    • 20 Amp Variable Transformer, 2000va Max, 0~130 Volt Output

      20 Amp Variable Transformer, 2000va Max, 0~130 Volt Output

      $94.99
      SPONSORED
    • STACO ENERGY PRODUCTS INC VARIABLE AUTOTRANSFORMER TYPE 3PN1010

      STACO ENERGY PRODUCTS INC VARIABLE AUTOTRANSFORMER TYPE 3PN1010

      $130.00
      Free shipping
      or Best Offer
      SPONSORED
    • Variac Variable Transforme 0.5/1/2/3KVA LCD Digital Display 0-130V AC Voltage

      Variac Variable Transforme 0.5/1/2/3KVA LCD Digital Display 0-130V AC Voltage

      $57.68 to $69.99
    • Superior Electric Type 126U Powerstat Variable Transformer 0-140V 15A 2.1KVA New

      Superior Electric Type 126U Powerstat Variable Transformer 0-140V 15A 2.1KVA New

      $160.00
      $25.48 shipping
    • General Radio Variac Autotransformer W10MT 0-135 V 10Amp Variable Transformer

      General Radio Variac Autotransformer W10MT 0-135 V 10Amp Variable Transformer

      $200.00
      $14.52 shipping
      or Best Offer
    • Powerstat Model 116B Variable Auto Transformer

      Powerstat Model 116B Variable Auto Transformer

      $69.99
      $12.79 shipping
      10 watching
    • 500W Variac Transformer Variable AC Voltage Regulator Metered 5Amp 110V 0-130V

      500W Variac Transformer Variable AC Voltage Regulator Metered 5Amp 110V 0-130V

      $46.89
      or Best Offer
      16 watching
    • STACO ENERGY PRODUCTS INC VARIABLE AUTOTRANSFORMER TYPE 3PN1010

      STACO ENERGY PRODUCTS INC VARIABLE AUTOTRANSFORMER TYPE 3PN1010

      $130.00
      Free shipping
      or Best Offer
      SPONSORED
    • Variable Transformer Model TDGC2-0.5KVA, Output 0-130V

      Variable Transformer Model TDGC2-0.5KVA, Output 0-130V

      $75.73
      Was: $89.09
      SPONSORED
    • Staco Energy Variable Transformer Variac Model 3PN1010B Gray Grey Blue Body

      Staco Energy Variable Transformer Variac Model 3PN1010B Gray Grey Blue Body

      $175.00
      $25.00 shipping
      or Best Offer
    • Staco Energy Variable Transformer 3PN1010B Grey - 100% Money Back Guarantee

      Staco Energy Variable Transformer 3PN1010B Grey - 100% Money Back Guarantee

      $84.37
      0 bids
      $25.00 shipping
      Ending Thursday at 8:17AM PDT4d 8h
    • Standard Electrical Products Adjust-A-Volt Variable Transformer

      Standard Electrical Products Adjust-A-Volt Variable Transformer

      $80.00
      Free shipping
    • 5Amp Variable Transformer 500VA 0-130V AC Voltage Regulator US Plug

      5Amp Variable Transformer 500VA 0-130V AC Voltage Regulator US Plug

      $46.21
      or Best Offer
    • 20Amp Variac Transformer Variable AC Voltage Regulator Metered 2000VA 0-130V

      20Amp Variac Transformer Variable AC Voltage Regulator Metered 2000VA 0-130V

      (5)5 product ratings - 20Amp Variac Transformer Variable AC Voltage Regulator Metered 2000VA 0-130V
      $58.49
      or Best Offer
    • Staco Energy Products 5010-34 Variable Autotransformer

      Staco Energy Products 5010-34 Variable Autotransformer

      $299.99
      0 bidsEnding Monday at 4:00PM PDT1d 15h
    • Voltage Regulator Variable Transformer Vintage Tested First Electric Co.

      Voltage Regulator Variable Transformer Vintage Tested First Electric Co.

      $99.99
      $18.00 shipping
      or Best Offer
    • Variac Transformer Variable 1kVA AC Voltage Regulator Metered 0-130V 110V

      Variac Transformer Variable 1kVA AC Voltage Regulator Metered 0-130V 110V

      $46.49
      or Best Offer

    Results Pagination - Page 1

    1. 1
    2. 2
    3. 3
    4. 4
    5. 5
    6. 6
    7. 7
    8. 8
    9. 9
    10. 10

    Top Rated

    See All- Top Rated
    • YaeCCC TEK-AB-0308 Variable Transformer - Red
      YaeCCC TEK-AB-0308 Variable Transformer - Red
      (15)Total Ratings 15
      100% agree - Would recommend
      $50.69 New
    • VEVOR BYQTDGC-2KVA00001V1 Variac - Red
      VEVOR BYQTDGC-2KVA00001V1 Variac - Red
      (32)Total Ratings 32
      100% agree - Would recommend
      $86.25 New
    • Staco 3PN1010 Variable Autotransformer
      Staco 3PN1010 Variable Autotransformer
      (24)Total Ratings 24
      90% agree - Would recommend
      $185.00 New
      $95.00 Used
    You May Also Like
    • ABB Current Transformers

    • Autotransformers 3 Phases

    • Transformer Accessories

    • Ohmite Autotransformers

    Shop by Primary Voltage Rating (AC)

    • 120 V

      120 V

    • 240 V

      240 V

    • 120/240 V

      120/240 V

    • 110 V

      110 V

    • 480 V

      480 V

    • 115 V

      115 V

    • 220 V

      220 V

    • 230 V

      230 V

    Shop by Primary Current Rating

    • 10 A

    • 20 A

    • 5 A

    • 30 A

    • 3 A

    • 15 A

    • 7.5 A

    • 22 A

    • 130 A

    • 3.5 A

    • 45 A

    • 9 A

    Additional site navigation

    • About eBay
    • Announcements
    • Community
    • Security Center
    • Seller Center
    • Policies
    • Affiliates
    • Help & Contact
    • Site Map
    Copyright © 1995-2023 eBay Inc. All Rights Reserved. Accessibility, User Agreement, Privacy, Payments Terms of Use, Cookies, Your Privacy Choices and AdChoice