Blue Sea Systems Heavy Duty 4-position battery switch

✅ Onboard power management.
⚡ Allows isolating or combining two battery banks.
🛥️ Designed for demanding marine environments.
🔌 500 A continuous current, maximum operating voltage of 48 V.
🔋 Battery combiner: auxiliary battery, engine battery, or both.
💪 700 A intermittent current (5 minutes) and 1600 A peak current (10 seconds).
🔩 12 mm studs, compatible with 95 mm² cables.
⚖️ Weight: 0.59 kg.
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BLUE SEA SYSTEMS HEAVY DUTY 4-POSITION BATTERY SWITCH: ONBOARD ELECTRICITY MANAGEMENT
The Blue Sea Systems Heavy Duty 4-position battery switch is an essential component for managing your boat's power supply. Designed for demanding marine environments, this battery switch allows you to isolate or combine two battery banks to power different circuits, such as the engine, auxiliary systems, or bow thruster.
This battery switch is designed to accept a continuous current of 500 A. It offers a reliable solution for switching off your boat's 12 V, 24 V, or 36 V circuits.
The Blue Sea Systems Heavy Duty 4-position battery switch acts as a battery combiner, allowing you to use an auxiliary battery, an engine battery, or both simultaneously, for starting or general operation of the onboard electrical network. It supports an intermittent current of 700 A (5 minutes) and a cranking current of 1600 A (10 seconds). The maximum operating voltage is 48 V. The studs have a diameter of 12 mm and are compatible with 95 mm² cables. It allows the coupling of two battery banks for engine starting. Its weight is 0.59 kg.
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Technical specifications
- Continuous current: 500 A
- Maximum voltage: 48 V
- Intermittent current: 700 A (5 minutes)
- Peak current: 1600 A (10 seconds)
- Stud diameter: 12 mm
- Cable compatibility: 95 mm²
- Weight: 0.59 kg
- 4 positions: Allows to isolate or combine two battery banks
- Function: Coupling of two battery banks for engine starting




















