Like a light bulb, a breaker seldom cares which wire goes where. Most work wired in any direction.
Primary side is ac in. Secondary is the low volt wind. Figuring out each low volt winding output by size vs the pic size is usually easy. The schematic shows the windings separate, but they are really "stacked" inline . The wide/long one is high volts, short/narrow between them is 5v, etc.
Photo?
