Ignitions and Electrical› Charging Systems

BLUE SEA

SWITCH BATTERY HD SELECTOR 3P W/AFD

$136.49

SKU: B03C 11003-BSS

Special Order
Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Beginner — under 30 min

Description

The Blue Sea HD-Series Battery Switch is a 3-position charging system component designed for marine applications. It meets ABYC requirements and is ignition protected, making it safe for installation on gasoline-powered boats. The switch accepts two 4/0 AWG (95mm) battery cables and features M12 tin-plated copper studs for maximum conductivity.

Fitment

Fitment Guaranteed

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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

BrandBLUE SEA
Part NumberB03C 11003-BSS

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.

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