350A 9002E e-Series Battery Switch 350A Continuous 12V to 32V Battery Combiner and Selector Switch 4 Position

Key Features

• Electrical Rating: 350A continuous, 600A intermittent (5 min), 1200A cranking (30 sec).
• Voltage: Rated for up to 32V DC systems.
• Functionality: 4-position selector switches between two isolated battery banks or combines them for emergency starting or charging.
• Construction: Tin-plated copper studs for maximum conductivity and corrosion resistance.
• Design: Continuous contact design allows switching between battery banks without power interruption.
• Safety: Ignition protected (ISO 8846) and waterproof (IP66) for use in marine engine compartments.
• Mounting: Case design allows for surface, rear panel, or front panel mounting options.

Replaces / Cross-Reference Part Numbers

• 9002E
• Blue Sea Systems 9002E

Compatibility & Fitment

• Application: Designed for marine vessels, RVs, and heavy-duty vehicles with multi-battery systems.
• System Voltage: Compatible with 12V, 24V, and 32V DC electrical systems.
• Terminals: Accepts 3/8"-16 (M10) ring terminals.

When to Replace

• Switch fails to make a reliable connection, causing intermittent power.
• Physical damage to the housing, terminals, or selector knob.
• Signs of overheating, arcing, or melting at the terminals.
• Selector knob becomes excessively stiff, loose, or will not engage in a set position.

Installation Tips

• Disconnect all battery negative terminals before starting the installation.
• Use marine-grade wiring and terminal lugs sized appropriately for the system's amperage.
• Ensure all cable connections are clean and tighten terminal nuts to the manufacturer's specified torque.
• Mount the switch in an accessible location, protected from direct spray and physical impact.
• After installation, test all switch positions to confirm correct operation before reconnecting loads.