Battery Master Switches
Built for salt, vibration and heat, our marine battery master switches use materials chosen for longevity and safe current handling:
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Housings: impact-resistant polycarbonate or ABS for rigidity, UV stability and crack resistance; low-profile flush/flange or compact surface-mount formats.
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Conductive parts: high-conductivity copper contacts and nickel-plated brass removable keys/pins for low contact resistance and strong corrosion resistance in marine environments.
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Fasteners & springs: stainless-steel hardware/springs on selected models for long-term anti-corrosion performance.
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Sealing & protection: water-protected keys and sealing caps keep spray and dirt out; selected models are ignition-protected (ISO 8846 / EN 28846) and CE compliant.
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Mounting & serviceability: internal/external fitments, flush (flange) mounts, compact 68–72 mm panels, and robust stud connections (e.g., M10 on heavy-duty units) for secure cable lugs.
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Operating envelope: options for 12/24/48 V systems with continuous/peak ratings up to 300 A cont. and 2,500 A peak on heavy-duty models; 1-2-BOTH selectors use make-before-break internals for smooth switching.
Battery Switch Selector 2‑Battery 1‑2‑Both
Heavy-duty battery selector switch with 3-position rotary control. Rated for 800 A instantaneous and 350 A continuous current. Designed for 12V marine systems using dual batteries.
Delivery within 10 working days.
Battery ON/OFF Switch (12/24/48V, 700A Peak)
Compact marine-grade ON/OFF battery switch rated for 700 A peak and 300 A continuous. Operates on 12V, 24V, and 48V systems. Secure, durable, and easy to install.
In stock
Marine Battery Switch – 100 A DC with Removable Key
Durable black polycarbonate marine battery switch, 100 A continuous / 1000 A peak, flange-mounted with splash-proof removable key and waterproof cap – CE / ISO 8846 certified.
In stock
Heavy‑Duty Battery Selector Switch 350 A
Marine-grade battery selector switch, rated 350 A continuous and 600 A peak. Available in ON/OFF, 1‑2‑BOTH, and dual‑circuit versions. Compact (98×98 mm) and key-operated for secure power control.
Delivery within 10 working days.
Marine Battery Selector Switch 300 A
Heavy-duty marine battery selector switch rated 300 A continuous / 500 A peak (variant 01638‑3: 450 A peak). Available in ON/OFF, 1‑2‑BOTH, and dual-circuit versions. Compact 71.8 × 71.8 mm with corrosion-resistant parts and integrated security key.
Delivery within 10 working days.
Selecta New MKII Battery Switch 14.921.00 – 300 A Continuous, 450 A Peak
Flush‑mount marine battery switch (OFF‑1‑2‑PARALLEL) rated 300 A continuous / 450 A peak. Flame-resistant PC/PTB casing, copper contacts, stainless spring, ISO‑certified.
In stock
Osculati Selecta New MKIII Battery Switch – 300 A Continuous (450 A Peak)
Flush-mount MKIII battery switch with OFF–1–Parallel positions, 300 A continuous / 450 A peak. Copper contacts, stainless springs, flame-resistant PC/PTB housing, ISO‑8846 certified.
In stock
Battery Switch – 300 A ON/OFF, Fixed Key
Compact marine-grade ON/OFF battery switch rated 300 A continuous / 450 A intermittent / 1000 A start (5 sec). Side cable exits, wall or panel mount, ISO‑compliant.
Delivery within 10 working days.
Heavy-Duty Battery Switch – 290 A Continuous with Removable Key
Heavy-duty marine battery switch rated 290 A continuous / 2,500 A peak (5 s), with splash-proof removable key and polycarbonate body. Flange-mountable, CE-approved.
In stock
Marine Battery ON/OFF Switch 250 A
Compact marine-grade ON/OFF battery switch rated 250 A continuous / 350 A instantaneous at 12 V. Ideal for secure battery isolation on small to medium vessels.
Delivery within 10 working days.