FYI - Catalina used a 30 amp circuit breaker on late 80s and early 90s cat 30s . Perhaps other models and years. If you are having issues and have tripped your's numerous times it may be a result of a defective breaker. Several years ago I tried to find a replacement but couldn't I find one.This was after talking to Catalina Direct and Catalina.This year I found a source at the following site and reasonable price.
Paneltronics Breaker 30 Amps w/Reverse Polarity Trip Coil - White
Buy with the best price Paneltronics Breaker 30 Amps w/Reverse Polarity Trip Coil - White MPN: 206-087 UPC: 602290204009 from NVN Marine! Same day shipping before 3pm.
nvnmarine.com