Exterior Components› Body Panels and Components
BUSSMANN
28X HI-AMP CIRCUIT BREAKER
SKU: B03L 285060F-121-1
Description
This breaker combines switching and circuit protection into a single unit, ideal for applications in trucks, buses, RVs, and marine systems. It features a visible yellow reset lever that indicates a tripped condition and a trip-free design that prevents the breaker from being held closed after a trip. The housing is constructed from thermoset plastic and it is ignition protected, meeting SAE J1171 external ignition protection requirements, making it safe for installation on gasoline-powered boats. It also boasts an IP67 rating for weather resistance.
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 | BUSSMANN |
| Part Number | B03L 285060F-121-1 |
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