Battery Isolator 275A – 2 Position with AFD
Protect your power. Control your current.
This heavy-duty 2-position battery isolator switch handles serious current and includes an AFD (Alternator Field Disconnect) to prevent damage to your alternator during isolation. Perfect for 4WDs, caravans, marine setups, and any high-demand electrical system.
Key features:
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Continuous current: 275A
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Cranking current (10 sec): 1250A
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Surge current (5 min): 455A
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Voltage rating: Up to 48V DC
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AFD protection: Safely disconnects the alternator field before isolating the battery
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2-position operation: ON / OFF for simple, reliable control
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Cable-friendly design: Removable side panels for versatile cable entry
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Built to last: Rugged construction for tough conditions
Best for:
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Dual battery systems in 4WDs and caravans
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Marine electrical systems
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Off-grid or solar setups needing secure isolation
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Protecting alternators during power-off procedures