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Variac Transformer TDGC2-2 with 20 Amp Max Output

Item no. TDGC2-2
Free shipping

Variac Transformer TDGC2-2 with 20 Amp Max Output

Item no. TDGC2-2
416 In stock

Variac Transformer TDGC2-2 with 20 Amp Max Output

Variac Transformer TDGC2-2 is an affordable, versatile way to control AC voltage output. This Variac transformer compares favorably with the Variac 3PN1010B model for 25% the price, and with a high efficiency output and no waveform distortion, this Variac autotransformer can be used for a wide array of professional and DIY applications. 

Variac Transformer TDGC2-2 features:

  • Quality control testing
  • Equipment testing on low and high voltage
  • Precise control over heat and speed
  • Ability to simulate various voltage and line conditions
  • Rated up to 20 Amps or 2KVA Peak (16A Continuous)
  • Requires AC input, provides AC output (does not convert AC to DC)
  • Does not affect cycle rate



The Variac Transformer TDGC2-2 does not convert AC to DC. It requires an AC input and the output is also AC. Also, the unit will not affect the cycle rate from the power company. If your power system is providing 60Hz, the Variac auto transformer will not change that, the ouput will be an undistorted 60Hz. This unit is rated up to 20 Amps or 2KVA Peak (16A Continous).

Note: Variacs are not compatible with most GFI (Ground Fault Interrupter) wall outlets.  We have found that the inductive load that the Variac represents is not compatible with most GFI circuits and they will trip the breaker.

Note: Not equipped with an isolated transformer.

Note: This unit is rated at 20 amps and most household outlets are only rated for 15 amps. Because 20 amps is peak output, if used in a home environment it is only recommended for peak operation for short periods of time; sustained operation shouldn't be at more than 15 amps of continuous output, with 20 amp peaks for no more than 10-15 minutes.

Helpful Links

For a more powerful version, we also sell a 30 amp version of this variac.

To learn more about modifying this variac by adding a digital panel meter, check this out.

This Variac features user replaceable brushes that can be ordered here.

Product Details

Programmable: NO

Product Type: AC Power Supply

# of Outputs: 1


1-year limited warranty

30 day satisfaction guarantee
Satisfaction Guarantee
Your satisfaction is important to us. If you're not satisfied, return the product within 30 days of purchase for a refund or credit.

Return policy
One year warranty
Limited Warranty
Circuit Specialists wants you to be happy with your purchase. This product comes with a one-year limited warranty.

Warranty policy
Free tech support
Free Tech Support
Circuit Specialists offers free technical support for the life of your product. Please call our technical team with any questions.

1-800-528-1417 ext. 3
Mon - Fri: 8:00 AM - 5 :00 PM (MST)

Expected delivery within 3-7 business days after shipping. Free shipping offer applies only to orders that weigh under 150 lbs. Offer limited to the contiguous U.S. Certain exclusions and limitations may apply. Circuit Specialists reserves the right to modify or discontinue any offer at any time.

Some products must be specially ordered, usually resulting in a 1–2 business day delay. Please contact us for an estimated delivery date.