EV-Transformer is the highest-voltage of the four transformers in Industrial Craft 2, converting EU (the mod's energy unit) between 8192 EU/t and 2048 EU/t. In the default step-down mode the EV-Transformer accepts 8192 EU/t through the higher-voltage face and outputs 2048 EU/t through the five lower-voltage faces; step-up mode accepts 2048 EU/t from the lower-voltage faces and outputs 8192 EU/t. The face marked with five dots is the higher-voltage side, and the single dot on each of the five remaining faces marks a lower-voltage side, so the wiring direction reads at a glance. Players craft the EV-Transformer on a crafting table with an Advanced Circuit on the left, an HV-Transformer in the center and a Lapotron Crystal on the right of the middle row, plus an HV Cable centered in the top and bottom rows.

Mode control keeps an EV-Transformer energy net predictable: the default setting runs step-down without a redstone signal and switches to step-up when a signal arrives, while the fixed step-down and fixed step-up options in the GUI lock the mode against stray signals that cause explosive failures. A wrench reorients the placed EV-Transformer: right-click the face that should carry the higher voltage, or shift-right-click to target the opposite face. Wrenching the higher-voltage face removes the EV-Transformer. Transformers also keep a small internal EU buffer that the GUI does not display. Industrial Craft 2 ships four transformers — LV, MV, HV and EV — and the EV-Transformer covers the top 8192 EU/t step of that ladder.