Just moved into a house that has Hager CB's all labelled. Brilliant. The one that is currently causing me problems is the one for what is labelled 'gas hob' with 6A Hager circuit breaker. I fitted a Neff Induction hob rated at 4600w and works ok with 1 hob on. Try any more and it trips. Quite prepared to upgrade it to 20w CB, but how do I know what rating the wire is between the hob and CB?
Given it's a hob, I'll guess UK or related, 240VAC countries. Doesn't really matter much, the answer holds for wherever you are.
Basically, a gas "hob" or cooktop or stove or range does not use much electrical power. So it will tend to have a small breaker and small, low capacity wiring. The heat comes from burning gas, not electricity.
Changing a gas hob to an electrical induction hob will require a complete refit from the breaker panel to the hob in order to have properly sized wire and breaker for the vastly larger electrical load, as you are now trying to make heat with electricity.