I recently replaced the individual AC circuit breakers on my 89. Since I had to spend a bunch of time looking for the right brand and model I'm posting the info here, in case it's useful to other members:

E-T-A Circuit Protection and Control 2-5700-IG1-K10-DD-10A
E-T-A Circuit Protection and Control 2-5700-IG1-K10-DD-15A

Here's a picture of how they look like installed.