The transformer steps down the mains voltage (220-400V) to the low voltage required by the control board or safety circuit, typically 24V.

Types: standard transformer (traditional winding) and toroidal (ring-shaped core, more compact and efficient) — available in various power ratings expressed in VA (e.g. 5VA, 8VA, 16VA, 80VA), to be chosen based on the current draw of the circuit being powered.

Compatibility: dedicated transformers available for SR/ITR family boards (e.g. AVM 220/380 24V 8VA), for Berkel (mod. M and M Quadro), Omas (T7802) and Sirman dispensers.

How to choose the right part: check input voltage (220/230/380/400V), output voltage (typically 24V) and power in VA — all three values must match the original or the requirements of the connected board.

For the connected electronic boards go back to Electronic Boards or Electronic Spare Parts.

Frequently asked questions

What does the power rating in VA mean?
It indicates the apparent power the transformer can supply: it must be chosen equal to or greater than the connected circuit's current draw, never lower.

What's the advantage of a toroidal transformer over a standard one?
For the same power, it's more compact, more efficient and generates less magnetic dispersion.