Blue Sea 300A Black Mini m-Series 3 Position (OFF/1/2) Battery Selector Switch

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Description

Blue Sea 300A Black Mini m-Series 3 Position (OFF/1/2) Battery Selector SwitchHigh Current Battery Selector Switch for Marine & 4WD Dual Battery Systems The Blue Sea m Series Mini 3 Position Battery Selector Switch is designed for dependable, high current battery management where clear isolation and simple selection matter. In boats, caravans, camper trailers and 4WD touring vehicles, battery systems are often asked to support critical loads such as fridges, lighting, comms, bilge pumps, winches and inverters. This switch

Modern off-grid systems increasingly rely on high-capacity lithium (LiFePO4) batteries

common return path for each circuit directly at the fuse block

this sensor pairs seamlessly with an optional 1-1/4 inch BSP to 5-hole flange adapter

84mm² conductors ensure maximum conductivity and reduced resistance

The side skirts feature pre-moulded knockouts that can be easily removed to accommodate various cable sizes and entry angles

1x 400mm NTC temperature sensor with dual probes

If you’re upgrading your battery management or adding a proper isolation point to a new build

This allows you to install the inverter out of sight near your batteries while keeping full control and status monitoring easily accessible from your cabin or main control panel

and remote workstations

Vibration Resistant: Reinforced internal design to withstand wave pounding and impact

2A active balancing ensures all 16 cells stay within millivolts of each other

and recreational vehicles (RVs) where consistent power delivery and safety are non-negotiable

Exchange/Return Notes