Blue Sea Systems Battery Switch m-Series Dual CircuitPlus, part number 6011, is a Dual Circuit Plus switch. Simultaneously switches two isolated battery banks or combines battery banks to all loads. IP66 waterproof, ISO 8846 and meets ABYC requirements. Ignition protected?safe for installation aboard gasoline powered boats. Make before break contact design allows switching between battery banks without power interruption. Continuous Rating: 300A, Maximum Voltage: 32V DC. Robust redesign done in July 2017. Premium warranty & support.