Blue Sea Systems E Series Selector Battery Switch with AFD

BLUE SEA SYSTEMS E-Series Selector Battery Switch with AFD

Take full command of your vessel´s power with the BLUE SEA SYSTEMS E-Series Selector Battery Switch, a premium solution for managing complex electrical systems in marine environments. Engineered for reliability and safety, this switch provides the ultimate flexibility in controlling your power sources, ensuring you have the power you need, when you need it. It is the ideal choice for boat owners who demand robust performance and uncompromising safety for their electrical connections.

Unmatched Control, Safety, and Reliability

The E-Series Selector Battery Switch is designed to give you complete authority over your boat´s power distribution. It expertly switches isolated battery banks to all loads or combines the power from all battery banks into a single source, perfect for emergency starting or when running high-demand accessories.

A standout feature is the integrated Alternator Field Disconnect (AFD). This critical safety system protects your alternator´s diodes from damage if the switch is turned to the "OFF" position while the engine is running. This intelligent protection helps prevent costly repairs and ensures the longevity of your charging system.

Experience seamless power management thanks to the innovative make-before-break contact design. This technology allows you to switch between your battery banks without any power interruption. Your sensitive electronics, navigation equipment, and lighting will remain powered on during the transition, eliminating the need to reset systems and providing a truly uninterrupted onboard experience.

Safety is paramount, especially on gasoline-powered boats. This switch is ignition protected, meeting stringent safety standards that make it safe for installation in engine compartments and other areas where explosive fumes could be present. The durable case design adds to its versatility, allowing for either a straightforward surface mount or a clean, professional-looking rear panel installation to suit your helm or panel layout.

Switches

This powerful selector switch is built to handle the demanding loads of modern vessels. It provides a simple and intuitive interface to manage multiple battery banks.
- Switches isolated battery banks to all loads or combines battery banks to all loads
- Includes AFD (Alternator Field Disconnect) to protect alternator diodes
- Make-before-break contact design allows switching between battery banks without power interruption
- Ignition protected—safe for installation aboard gasoline powered boats
- Case design allows for versatile surface or rear panel mounting

Technical Specifications:
- Switch Type: Selector 4 Position
- Switch Positions: 4 (Battery 1 / Battery 2 / Both / Off)
- Maximum Voltage: 32V DC
- Continuous Rating: 350A
- Intermittent Rating: 600A (5 min)
- Cranking Rating (30 sec): 1200A
- Battery Inputs: 2
- Terminal Stud Torque: 140 in-lb (15.82 Nm)
- Terminal Stud Size: 3/8" - 16 (M10)
- Stud Material: Tinned Copper for maximum conductivity and corrosion resistance
- Cable Clearance For 4/0 AWG Cables: 1.10in (27.94 mm)
- Cable Size to Meet Ratings: 4/0 AWG (120mm²)
- Mounting Holes: Accept 1/4" (M6) Screw
- Weight: 1.30lb (0.59 kg)