Blue Sea HD-Series Battery Selector 4 Position Switches 500A.

Blue Sea HD Series 500A Battery Selector 4 Position Switches

Models:

• 3002-BSS: 4 Position Battery Selector Switch

• 3003-BSS: 4 Position Battery Selector Switch with Alternator Field Disconnect (AFD)

Blue Sea Systems 3000 Series 500A Battery Selector Switches provide robust and reliable power switching for multi-battery systems. These switches feature tin-plated copper studs for maximum conductivity and corrosion resistance, designed to accept large battery cables (up to 4/0 AWG) and multiple cable terminals. The one-piece terminal stud design ensures the studs never loosen, even under heavy use. Compatible with Perko and Guest low amperage battery switch hole patterns, the switches offer flexible mounting options including surface, rear, or front panel. The tactile indicator allows for position confirmation by feel. Waterproof to IP66 rating and ignition protected, these switches are safe for gasoline-powered boats. The make-before-break contact design allows switching between battery banks without power interruption, essential for uninterrupted power management.

Key Features

• Tin-plated copper studs for excellent conductivity and corrosion resistance

• Accepts up to 4/0 AWG battery cables with 7/8" (22mm) stud length

• One-piece terminal stud design that never loosens

• Fits most Perko and Guest low amperage battery switch hole patterns

• Flexible mounting options: surface, rear, or front panel

• Tactile knob position indicator for intuitive use

• Waterproof rated IP66 against powerful water jets

• Ignition protected, safe for gasoline-powered boats

• Make-before-break contact prevents power interruption during bank switching

• Model 3003 includes Alternator Field Disconnect (AFD) for additional battery management

Specifications Comparison

These switches are ideal for high-capacity battery bank management in marine or industrial applications, combining durability, safety, and uninterrupted power switching functionality.