SKU: CW81398
MPN: 7701100
The Blue Sea 7701100 ML Solenoid 12V 500A with Deutsch Connector is a magnetic latching relay engineered for high-amperage power distribution in vehicles where manual switching is impractical or hazardous. Built for serious automotive builders, this 500-amp solenoid excels in custom wiring harnesses for engine starters, dual battery systems, winch controls, and auxiliary power distribution on trucks, off-road rigs, and marine vessels. The bi-stable magnetic latching design means the solenoid holds its position after energization, reducing continuous current draw and heat generation compared to conventional momentary relays.
The solenoid operates on 12V DC input and delivers 500 amperes continuous capacity, making it capable of handling engine cranking loads, high-output inverters, and house battery circuits without relay chatter or voltage sag. The Deutsch connector provides sealed, weatherproof termination—critical for off-road and marine environments where corrosion and moisture penetration can degrade performance. The magnetic latching (bi-stable) coil architecture requires only a brief pulse to switch on and an opposing pulse to switch off, minimizing parasitic drain on auxiliary batteries and reducing the need for large-gauge control wiring. This design is especially valuable in systems with limited power budgets or multiple switching zones.
Mechanics and fabricators rely on this solenoid for dual-battery isolators, remote winch activation, emergency disconnect circuits, and inverter load management on expedition vehicles and heavy-duty trucks. The 1 lb compact form factor integrates easily under-dash, in engine bays, or behind fender panels. Verify control circuit voltage and wire gauge against your system's amperage before installation; the Deutsch connector accepts standard M-series pins for field repair. Compatible with any 12V negative-ground automotive system, this solenoid pairs seamlessly with modern smart battery isolators and manual isolator switches.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
Blue Sea Systems
Blue Sea Systems
Blue Sea Systems
Blue Sea Systems