Blue Sea M Series Single Circuit Battery Switch With Key

The Blue Sea Systems M-Series (Mini) Battery Switch Single Circuit ON/OFF is a compact, heavy-duty marine battery isolator designed to safely connect or disconnect a single battery from a single load group. Supplied complete with a switch key, it allows quick battery isolation for maintenance, storage or emergency situations.

Rated for 300 Amps continuous with a 1,500 Amp cranking capacity, it is ideal for outboard engines and small petrol or diesel-powered vessels.

Built with tin-plated copper studs for maximum conductivity and corrosion resistance, the switch features a one-piece terminal stud design that prevents loosening over time. The rugged housing offers surface, front panel or rear panel mounting, while the snap-on insulating cover protects rear terminals and allows flexible cable routing.

The switch is ignition protected, making it safe for installation in petrol engine compartments, and is certified to IP66, protecting against powerful water jets. Fully compliant with CE, ISO 8846, UL 1107, UL1500, SAE J1171 and ABYC standards, it delivers dependable battery isolation for demanding marine environments.

• Supplied complete with ON/OFF switch key
• Single circuit ON/OFF battery switch
• Ignition protected for petrol-powered boats
• Tin-plated copper terminals for excellent conductivity
• One-piece terminal studs resist loosening
• Surface, front or rear panel mounting
• Snap-on insulating cover with flexible cable entry
• IP66 water-resistant construction
• Compatible with Blue Sea Paralleling Link Bus 8-29159
• Meets CE, ISO 8846, UL 1107, UL1500, SAE J1171 and ABYC requirements