Manual Battery Switches

Battery switches isolate the potentially destructive energy in the battery banks when the boat is not in use or during emergencies. They are available in different configurations according to the application.

These are familiar to most boaters as a large, usually red switch with a round face and prominent knob. The 4-position selector switch has long been the industry standard for managing the selection and charging of two battery banks. Blue Sea Systems has three families of manual battery switches.

The compact m-Series is rated at 300A continuous and is ideal for outboard motors or small inboard engines.
The standard e-Series has a 350A continuous current rating and is a popular replacement switch.
The heavy-duty HD-Series can carry up to 600A of continuous current, making it an excellent choice for boats with large diesel engines.

Blue Seas Battery Switch

Some switches have an auxiliary contact called an AFD (for Alternator Field Disconnect) which is used to disable the alternator field whenever the switch is turned to an open position. Otherwise, the alternator diodes are susceptible to damage by "cutting" the charge current to the battery.

Part No	Name	Afd	Positions	Poles	Price (inc GST)
BSS.6006	Blue Sea Switch Battery M ON/OFF w/Knob SKU: BSS.6006	No AFD	ON-OFF	Single Pole	$46.70 $44.35
BSS.6007	Blue Sea Switch Battery M Selector SKU: BSS.6007	No AFD	1-OFF-2-BOTH	Single Pole	$65.40 $64.90
BSS.9003e	Blue Sea Switch Battery e ON/OFF SKU: BSS.9003e	No AFD	ON-OFF	Single Pole	$66.50
BSS.9001e	Blue Sea Switch Battery e Selector SKU: BSS.9001e	No AFD	1-OFF-2-BOTH	Single Pole	$73.20 $70.00
BSS.6010	Blue Sea Switch Battery M DualCirc SKU: BSS.6010	No AFD	ON-OFF	Double Pole	$78.50 $74.50
LIT.880064	SR Single Pole Panel Mount w/Lock-Out 300A Switch - Littelfuse 880064 SKU: LIT.880064	No AFD	ON-OFF	Single Pole	$75.00
BSS.9002e	Blue Sea Switch Battery e Selector w/AFD SKU: BSS.9002e	AFD	1-OFF-2-BOTH	Single Pole	$80.40 $77.50
BSS.6011	Blue Sea Switch Battery M DualCircPlus SKU: BSS.6011	No AFD	ON-OFF-BOTH	Double Pole	$78.50
BSS.11001	Blue Sea Switch Battery e Selector 3p w/AFD SKU: BSS.11001	AFD	1-OFF-2	Single Pole	$83.00 $78.90
BSS.6008	Blue Sea Switch Battery M Selector 3 position SKU: BSS.6008	No AFD	1-OFF-2	Single Pole	$79.50
BSS.5511e	Blue Sea Switch Battery e DualCircPlus SKU: BSS.5511e	No AFD	ON-OFF-BOTH	Double Pole	$91.60 $87.05
BSS.5510e	Blue Sea Switch Battery e DualCirc SKU: BSS.5510e	No AFD	ON-OFF	Double Pole	$90.80
BSS.9004e	Blue Sea Switch Battery e ON/OFF w/AFD SKU: BSS.9004e	AFD	ON-OFF	Single Pole	$97.50 $92.65
BSS.3000	Blue Sea Switch Battery HD ON/OFF SKU: BSS.3000	No AFD	ON-OFF	Single Pole	$147.50 $119.90
BSS.3002	Blue Sea Switch Battery HD Selector SKU: BSS.3002	No AFD	1-OFF-2-BOTH	Single Pole	$153.80 $130.95
BSS.3001	Blue Sea Switch Battery HD ON/OFF w AFD SKU: BSS.3001	AFD	ON-OFF	Single Pole	$141.40 $133.90
BSS.3003	Blue Sea Switch Battery HD Selector w/AFD SKU: BSS.3003	AFD	1-OFF-2-BOTH	Single Pole	$146.50
BSS.11003	Blue Sea Switch Battery HD Selector 3p w/AFD SKU: BSS.11003	AFD	1-OFF-2	Single Pole	$162.00 $153.90