Blue Sea Systems 3002 Heavy-Duty 4-Position Battery Selector Switch, 500A Continuous

The Blue Sea Systems 3002 is a heavy-duty, 4-position battery selector switch built to isolate battery banks from all loads or combine battery banks to power all loads aboard a boat. Turning the rotary knob to OFF, 1, 2, or BOTH lets the operator control exactly how the battery banks connect to the vessel's electrical system, which is essential for isolating a cranking battery from house loads or combining banks in an emergency.

The switch is ignition protected, making it safe for installation aboard gasoline-powered boats, and it carries an IP66 rating so it is protected against powerful water jets in an open engine compartment or helm station. A tactile indicator lets the operator feel the knob's position without needing to see it, which is useful in low light or when reaching the switch by feel. The housing is constructed of plastic with tin-plated copper contacts, and the switch accepts two 4/0 AWG (95 mm squared) battery cables per terminal on 1/2 inch terminal studs. An Icon Circuit Identification Label Kit (7902) is available separately for labeling the switch positions to match the vessel's specific circuits.

The 3002 is rated for a continuous current of 500 amps, an intermittent (5 minute) rating of 700 amps, and a cranking rating of 1,600 amps for 30 seconds, at a maximum operating voltage of 32 volts DC. It is panel mounted and meets CE marking, ISO 8846, UL 1107, ABYC, UL 1500, and SAE J1171 external ignition protection requirements, making it suitable for use as a primary battery selector switch on gasoline or diesel powered boats.

Specifications

• Brand: Blue Sea Systems
• Manufacturer Part Number: 3002
• Item Type: Heavy-Duty Battery Selector Switch, 4-Position
• Number of Positions: 4
• Continuous Rating: 500 Amps
• Intermittent Rating (5 min): 700 Amps
• Cranking Rating (30 sec): 1,600 Amps
• Maximum Operating Voltage: 32 Volts DC
• Terminal Stud Size: 1/2 inch
• Cable Capacity: Two 4/0 AWG (95 mm squared) battery cables per terminal
• Mounting Type: Panel Mount
• Ingress Protection Rating: IP66
• Regulatory Compliance: CE marked, ISO 8846, UL Listed (UL 1107), meets ABYC requirements, meets UL 1500 and SAE J1171 external ignition protection requirements
• Material: Plastic
• Contact Material: Tin-plated Copper
• Color: Beige
• Dimensions: 9 x 6 x 3 inches
• Weight: 1.25 pounds
• Accessory: Icon Circuit Identification Label Kit 7902 (sold separately)

Frequently Asked Questions

What does the Blue Sea Systems 3002 battery switch do? It switches isolated battery banks to all loads or combines battery banks to power all loads, letting the operator control which batteries are connected to the boat's electrical system via a 4-position rotary knob (OFF, 1, 2, BOTH).

Is the 3002 safe to install on a gasoline powered boat? Yes. The 3002 is ignition protected and meets UL 1500 and SAE J1171 external ignition protection requirements, so it is rated for installation aboard gasoline-powered boats.

What is the continuous amperage rating of the 3002 switch? The Blue Sea Systems 3002 is rated for 500 amps continuous, 700 amps intermittent for 5 minutes, and 1,600 amps cranking for 30 seconds, at a maximum operating voltage of 32 volts DC.

What size battery cables does the 3002 accept? Each terminal on the 3002 accepts two 4/0 AWG (95 mm squared) battery cables, with a terminal stud size of 1/2 inch.

Is the switch waterproof? The 3002 carries an IP66 rating, meaning it is protected against powerful water jets, and it is also rated to ISO 8846 for marine ignition protection standards.

What is the 3002 switch made of? The housing is constructed of plastic with tin-plated copper contacts inside the switch mechanism.

How do I know what position the 3002 knob is in without looking? The Blue Sea Systems 3002 has a tactile indicator built into the knob that conveys its position by feel, so the operator can identify OFF, 1, 2, or BOTH without needing to see the switch face.

How much does the 3002 battery switch weigh? It weighs 1.25 pounds.

What are the dimensions of the 3002? The 3002 measures 9 x 6 x 3 inches.

How is the 3002 different from Blue Sea Systems' 3000 and 3001 switches? The 3002 is rated for 500 amps continuous, 700 amps intermittent, and 1,600 amps cranking, while the 3000 and 3001 switches are rated higher at 600 amps continuous, 900 amps intermittent, and 1,750 amps cranking; both share the same 32 volt DC maximum operating voltage.

Can I label the switch positions for my specific battery banks? Yes, the Icon Circuit Identification Label Kit (part number 7902) is available separately and can be used to label the 3002's switch positions.

Is this a genuine Blue Sea Systems part? Yes, this is the genuine Blue Sea Systems 3002 heavy-duty 4-position battery selector switch, not an aftermarket equivalent.