The Blue Sea Systems ML-Series Heavy Duty Solenoid Switch 7701 is engineered for reliable switching in demanding marine and industrial environments. Rated for 500 amp continuous, 700 amp intermittent, and 1,450 amp 30-second cranking at 12 volts DC, it handles high loads without manual control. Its magnetic latching design consumes no current in steady ON or OFF states, enhancing efficiency by drawing power only during switching. Silver alloy contacts ensure robust, high-reliability connections under load. The 3/8”-16 tin-plated copper studs and one-piece stainless flange nuts deliver superior conductivity and corrosion resistance, while 7/8-inch stud length accommodates multiple cable terminals securely. The unit includes an ML-series remote control contura switch (P/N 2145) and features LED output indication with an optional LED light. Built to withstand harsh conditions, it is IP66 rated for dust and water ingress and complies with ISO 8846 marine and SAE J1171 ignition protection standards, also holding CE certification. Recessed label spaces facilitate clear circuit identification, making this solenoid switch a dependable choice for heavy-duty, marine-grade power switching applications.

 

500 amp 12 volt DC latching solenoid switch allows switching under load where manual control is not required.

• Blue Sea ML-series solenoid switch
• 12 volt DC nominal voltage
• Includes ML-series remote control contura switch P/N 2145
• Magnetic latching draws no current in ON or OFF state and only draws current when changing state of switch
• Silver alloy contacts provides high reliability for switching live loads
• LED output indicates switch state with addition of LED light – sold separately
• 500 amp DC continuous rating
• 700 amp DC intermittent rating
• 1,450 amp DC 30 second cranking rating
• 3/8”-16 tin-plated copper studs for excellent conductivity and corrosion resistance
• 7/8 in. stud length accepts multiple cable terminals
• One piece stainless flange nuts ensures secure connections
• 1.18 in. terminal ring diameter clearance
• Label recesses for circuit identification labels
• IP 66 rated against dust ingression and water intrusion
• ISO 8846 marine
• Meets SAE J1171 marine ignition protection requirements
• CE certified