Blue Sea Systems 9001E e-Series Battery Switch, 4 Position Selector, 32V DC 325A, Red

The Blue Sea Systems 9001E is a 4 position selector battery switch built for boats that need flexible control over multiple battery banks. It lets you select between battery banks individually or combine them to supply power to onboard systems, making it a common choice for dual battery bank setups where switching between house and start batteries (or combining them) is required. The compact design fits tight installation spaces, and the switch supports multiple mounting options, including surface mounting or rear panel mounting, so it can be installed to suit the available space around the helm or engine compartment.

The 9001E is ignition protected, meaning it is rated for mounting in the engine room of gasoline powered boats. It uses one piece copper studs measuring 7/8 inch long that accept multiple cables, helping maintain secure, low resistance electrical connections at the switch. The switch face has tactile textures so the operator can identify and operate the correct position by feel in low light or no light conditions, an important detail for a component often mounted out of direct sightline. The housing is red plastic, and the unit is rated for 32 volts DC at up to 325 amps. This model does not include an alternator field disconnect (AFD) feature.

Specifications

• Brand: Blue Sea Systems
• Manufacturer Part Number: 9001E
• Operation Mode: Selector 4 Position
• Number of Positions: 4
• Current Rating: 325 Amps
• Operating Voltage: 32 Volts DC
• Terminal Type: One piece copper studs, 7/8 inch long, accept multiple cables
• Material: Plastic
• Color: Red
• Mounting Type: Panel Mount, Surface Mount
• Dimensions: 3.85 x 3.85 x 3.1 inches
• Weight: 1.3 pounds
• Ignition Protection: Ignition Protected (suitable for gasoline powered boat engine rooms)
• Alternator Field Disconnect: Not included
• International Protection Rating: IP66
• Warranty: Limited Lifetime

Fitment

Ignition protected for installation in the engine room of gasoline powered boats. Suited to boats with two battery banks that need selector or combine control.

Frequently Asked Questions

What does the 4 position selector on the Blue Sea Systems 9001E do? The 9001E is a 4 position selector switch that lets you choose between two battery banks individually, combine them, or turn the circuit off, giving flexible control over which battery bank supplies power to onboard systems.

Is the Blue Sea Systems 9001E safe to mount in a gasoline engine room? Yes, the 9001E is ignition protected, which means it is rated for mounting in the engine room of gasoline powered boats.

Does the 9001E include an alternator field disconnect (AFD)? No, the Blue Sea Systems 9001E does not include an alternator field disconnect feature.

What voltage and current is the 9001E rated for? The 9001E is rated for 32 volts DC and up to 325 amps.

What are the terminal studs on the 9001E made of, and what size are they? The 9001E uses one piece copper studs that are 7/8 inch long and accept multiple cables for secure, low resistance connections.

What are the dimensions and weight of the Blue Sea Systems 9001E? The 9001E measures 3.85 x 3.85 x 3.1 inches and weighs 1.3 pounds.

Can the 9001E be mounted on the surface of a panel or from behind it? Yes, the 9001E supports multiple mounting options and can be installed on the surface or on the rear of a panel.

How is the correct switch position identified in low light? The 9001E has tactile textures on its face that let the operator identify and operate the correct switch position by feel in low or no light conditions.

What color and material is the 9001E housing? The Blue Sea Systems 9001E has a red plastic housing.

What is the difference between the Blue Sea Systems 9001E and the 9002E? Both are 4 position selector switches, but the 9002E includes AFD (alternator field disconnect) terminals while the 9001E does not.

What warranty comes with the Blue Sea Systems 9001E battery switch? The 9001E is backed by a limited lifetime warranty from Blue Sea Systems.

What environmental protection rating does the 9001E carry? The Blue Sea Systems 9001E carries an IP66 protection rating.