Ignitions and Electrical› Wiring Components
BLUE SEA
CIRCUIT BREAKER PUSH BUTTON ST 3A
SKU: B03C 2129-BSS
Beginner — under 30 min
Description
MIA's Description
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | BLUE SEA |
| Part Number | B03C 2129-BSS |
Videos
Marine Wiring Made Easy: Why We Switched to Blue Sea Push-Button Breakers
Blue Sea Systems WeatherDeck Fuse Panel Overview - EP 1
Blue Sea Systems 285 187 & Klixon Circuit Breakers
Blue Sea Systems Thermal Circuit Breaker
Installed: Blue Sea Systems 200 amp circuit breaker
Blue Sea Systems 8023 Circuit Breaker Panel
Blue Sea Systems Common Busbars
Blue Sea System | SafetyHub 150 – All-in-One Circuit Protection
Blue Sea Systems 5025 5035 5045 5046
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return Policy