This panel takes A-Frame white toggle circuit breakers. They come in a range from 2.5 Amps to 50 Amps rating. Apart from the AC and DC Mains it comes fitted with part number 7210 which is a 15 Amp model.
You have to purchase these breakers separately and install them yourself. Its easier to do this before you install the panel as there are no wires to get in the way. I suggest you get a variety, maybe some 5, 10, 20 and a 30 Amp breaker. You can check the price by looking up the price of the 7210, they should all cost the same.