Blue Sea Systems e-Series On Off Battery Switch

Description

Blue Sea Systems e-Series On Off Battery Switch – 9003e

The Blue Sea Systems e-Series On Off Battery Switch (9003e) is a heavy-duty single-circuit ON-OFF battery switch designed to switch one battery to one load group. It provides a dependable way to disconnect and isolate a battery from connected electrical loads in marine, RV, and other DC electrical systems.

The e-Series switch is designed with an ignition-protected construction, making it suitable for installation aboard gasoline-powered boats when installed according to applicable requirements. Its case design allows for both surface mounting and rear-panel mounting, providing flexibility for different installation configurations.

Key Fea tures

• Single Circuit ON-OFF operation
• Switches one battery to one load group
• 350A continuous rating
• 600A intermittent rating for 5 minutes
• 1200A starting rating for 30 seconds
• 48V DC maximum operating voltage
• Ignition protected
• Suitable for gasoline-powered boats
• Supports surface or rear-panel mounting
• Tinned copper studs
• Accepts 4/0 AWG cable
• 3/8″-16 (M10) terminal studs
• Part Number: 9003e

Single Circuit ON-OFF Battery Switch

The 9003e is designed for straightforward battery disconnect applications. Turning the switch ON connects the battery to the selected load group, while turning it OFF disconnects the battery from the load group.

This makes the switch useful for controlling and isolating electrical loads during normal operation, maintenance, storage, or servicing.

High Current Capacity

The e-Series 9003e provides a 350A continuous rating, allowing it to handle substantial DC electrical loads.

It also has a 600A intermittent rating for 5 minutes and a 1200A starting rating for 30 seconds, making it suitable for demanding marine electrical applications where high current may be required during engine starting.

Ignition Protected

The 9003e is ignition protected, making it suitable for installations aboard gasoline-powered boats when properly installed.

This feature helps make the switch appropriate for marine battery systems where ignition protection is an important installation requirement.

Flexible Mounting

The case design allows the switch to be installed using either surface mounting or rear-panel mounting. This provides flexibility when integrating the battery switch into a boat, electrical enclosure, dashboard, or battery management system.

Heavy-Duty Terminals

The switch features tinned copper terminal studs with 3/8″-16 (M10) terminal stud size.

The terminals accept cables up to 4/0 AWG (120mm²) when installed to meet the specified ratings.

Product Specifications

Brand: Blue Sea Systems
Product: e-Series On Off Battery Switch
Part Number: 9003e
Switch Type: Single Circuit ON-OFF
Color: Red
Switch Positions: 2
Maximum Voltage: 48V DC
Continuous Rating: 350A
Intermittent Rating: 600A for 5 minutes
Starting Rating: 1200A for 30 seconds
Battery Inputs: 1
Cable Size: 4/0 AWG (120mm²)
Cable Clearance: 1.10 in
Terminal Stud: 3/8″-16 (M10)
Stud Material: Tinned Copper
Terminal Stud Torque: 140 in-lb (15.82 Nm)
Mounting Holes: Accept 1/4″ (M6) screws
Switching Rating: 25A
Ignition Protected: Yes

Installation

The 9003e can be installed using either surface mounting or rear-panel mounting. Follow the manufacturer’s installation instructions and ensure that cable size, terminal connections, torque, and system ratings are appropriate for the application.

Ideal Applications

The Blue Sea Systems 9003e is suitable for applications requiring a reliable high-current battery disconnect, including:

• Marine electrical systems
• Boat battery systems
• RV electrical systems
• Battery isolation
• Main battery disconnect applications
• DC power distribution systems
• Electrical maintenance and service isolation

Important

The 9003e is a single-circuit ON-OFF battery switch. It does not provide battery combining and does not include an alternator field disconnect function.

Always verify the required voltage, current rating, cable size, and installation configuration before installation.

Additional information

Downloads

• Manual