Blue Sea Systems Battery Switch 2pos 350A – BSS-9003E

Blue Sea Systems e-Series Battery Switch BSS-9003E is a 2-position (On/Off) battery disconnect designed to control a single batterys DC circuit with a 350A continuous ratingideal for clean, simple master shutoff in marine electrical systems.

Key Features

• 2-position (On/Off) e-Series marine battery switch for single-circuit battery control
• 350A continuous DC rating for reliable battery disconnect
• e-Series design for dependable DC circuit switching
• Manufacturer Part Number: BSS-9003E

Product Compatibility

• Marine battery management systems requiring a simple single-battery on/off disconnect
• Single-battery setups where a master DC shutoff is needed
• Boat electrical systems that use a battery switch for isolation during maintenance or storage

Product Details

• Brand: Blue Sea Systems
• Product Type: Battery switch
• Switch Positions: 2-position (On/Off)
• Rating: 350A continuous
• Manufacturer Part Number: BSS-9003E
• SKU/Variant: BSS-9003E

Parts Desk Insights

Best Use Case: Choose this switch when you want a straightforward master disconnect for one battery circuitturning electrical loads off when the boat is not in use or during maintenance.

Common Issues: If your switch is difficult to turn or the electrical circuit behaves inconsistently, double-check terminal connections and routing to ensure proper, secure contact at the battery switch terminals. Also confirm the switch hole pattern and mounting location match your installation plan before final tightening.

Related Products & Accessories

• Blue Sea Systems e-Series 4-Position 350A Battery Switch (BSS-9001E) – Alternative e-Series battery switch option with more positions.
• Blue Sea Systems 4-Position 300A Battery Switch (BSS-6007) – Alternative multi-position option for different battery management needs.
• Blue Sea Systems M-Series 2-Position Lock 30A (BSS-6004) – 2-position lock style switch for lower amperage applications.
• Blue Sea Systems ML-Series Remote Battery Switch (BSS-7700) – Remote battery switch option when you need location flexibility.
• Blue Sea Systems e-Series On-Off with AFD (BSS-9004E) – On/Off configuration with AFD capability for alternator protection.
• Blue Sea Systems e-Series 4-Position Selector with AFD (BSS-9002E) – Selector configuration with AFD for alternator protection.