FR3 Transformer Fluid

FR3 Transformer Fluid



Sale price$1,116
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Premium FR3 Fluid for Electrical Transformers

FR3 is a biodegradable dielectric coolant specifically formulated for electrical transformers. This innovative solution is designed to enhance transformer performance and longevity while prioritizing environmental safety and sustainability.

Key Features:

  1. Superior Fire Resistance: FR3 fluid significantly increases the fire safety of transformers, with a higher flash point compared to traditional mineral oils, reducing the risk of fire and enhancing overall operational safety.

  2. Excellent Dielectric Properties: Offering high dielectric strength, this fluid provides outstanding insulation for transformer internals, minimizing the risk of electrical disturbances and breakdowns.

  3. Extended Transformer Life: The unique formulation of FR3 fluid helps in maintaining the integrity of insulation paper within transformers, effectively doubling the lifespan of transformer insulation and reducing maintenance costs.

  4. Environmentally Friendly: Made from renewable vegetable oils, this fluid is readily biodegradable and non-toxic, significantly reducing environmental hazards in the event of a spill or leak.

  5. Improved Heat Dissipation: It possesses excellent thermal conductivity, allowing for more effective cooling and heat dissipation, which enhances the efficiency and performance of transformers.

  6. Compatibility: FR3 fluid is compatible with a broad range of transformer components and materials, ensuring it can be used in various transformer types without the need for significant modifications.


  • Power and distribution transformers in high-fire-risk environments
  • Transformers in ecologically sensitive areas
  • Industrial and commercial transformers where safety and sustainability are a priority


  • Meets or exceeds key industry standards for transformer coolants
  • Available in various quantities to cater to different project scales

Opt for FR3 Fluid to not only boost the performance and lifespan of your transformers but also to commit to a safer and more sustainable operational environment. Ideal for modern power systems, it is the perfect blend of performance, safety, and environmental responsibility.

Free 5-7 day shipping is included in the price of this product. Call for expedited shipping rates.

Ordered the wrong product? Our web store exchange policy has you covered! We’ll send you a replacement product. All you pay for is shipping, plus the difference in unit price. Our policy lasts 30 days. If 30 days have gone by since your purchase, we cannot offer you a refund or exchange, but we still may be interested in buying the unit back. Proof of purchase is required to process a return or exchange.

Read more here: Return and Refund Policy

This product is covered by our 1 year warranty.

Reviews from our customers:

“I spoke with Josh Long and he was the most knowledgeable sales rep on transformers I had the pleasure of speaking with during my 2 month long ordeal to find a very specific transformer for my machine from overseas. I really appreciate his expertise on the matter and I look forward to working Josh again.”

Hien Tran

“I love this company. I'm an electrical contractor and I use them for all my transformer needs and recommend them wherever I can. Josh Long and Chris Stouffer always return my calls and answer my emails. They provide a great, personalized service. It's nice to go straight to the source to buy rather than going through an electrical supply house or another middle man.”

Naomi Doire

“Your service and response was impeccable. The equipment quality is excellent. It was a pleasure to work with Jeremiah. He was fantastic, sent me all the drawings and paperwork superfast. Can't wait to need another transformer. Thank you very much.”

Elliott Foy