Transformer black outline icon
Electrical transformer box with a lightning bolt and three columns of stacked insulators on top
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About the Transformer black outline icon
A rectangular substation housing carries a lightning bolt on its face, topped by three columns of stacked insulator discs. The drawing points to power distribution, voltage step-down and grid infrastructure rather than a generic energy mark. It suits utility dashboards, electrical engineering diagrams, energy company sites, industrial safety notices and infrastructure map legends.
Trapezoid insulator plates repeat three times per column to signal high voltage, while the bolt sits centered and slightly angled for balance. Pair it with power line, meter and solar panel icons; keep it at 32 px or larger so the stacked discs do not merge together.
This is the black outline version of the transformer icon: even, monoline strokes that stay crisp at small sizes and suit clean, minimal interfaces, wireframes and light backgrounds.
It downloads free as an SVG vector or transparent PNG in seven sizes, and the free online editor lets you recolor it, apply gold, silver, neon and gradient styles, add animation, or convert it to EPS, PDF and DXF.
Free for personal and commercial use with attribution.
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