Perko Medium Duty Battery Selector Switch, 250A, AFD, Key Lock, CE Certified

Ensure reliable power management and safeguard your marine electrical system with the Perko 8504DP Medium Duty Battery Selector Switch. Engineered for versatility and safety, this switch provides critical control for single or multiple battery/engine configurations, making it an essential component for any vessel. Its ignition-protected design, combined with an innovative Alternator Field Disconnect (AFD) feature, reduces the risk of damage to your alternator if the switch is turned off while the engine is running. Designed for seamless integration and robust performance, this switch is a trusted solution for secure and efficient power distribution, proudly holding CE certification. Upgrade your boat's electrical control today for enhanced peace of mind.

Key Features & Benefits:

• High Current Capacity: Rated for 250 Amps continuous and 360 Amps intermittent (5 min) to handle demanding marine electrical loads.
• Alternator Field Disconnect (AFD): Prevents damage to non-unitized alternators by interrupting the field current if the switch is turned "OFF" while the engine is running.
• Enhanced Security: Features a key lock function for added protection against unauthorized use, securing your vessel's power.
• Ignition Protected: Certified safe for installation in gasoline-powered engine compartments, minimizing the risk of fire or explosion.
• Wide Voltage Compatibility: Designed for use with 6 to 32 Volt DC marine electrical systems, offering broad application versatility.
• Durable Construction: Built with a robust polycarbonate body and corrosion-resistant brass terminals for long-lasting reliability in harsh marine environments.
• Compact & Easy Installation: Features a 5-1/4" diameter and 2-5/8" depth, with a traditional Perko bolt circle for effortless mounting in various locations, even as a replacement.
• Secure Connections: Equipped with 5/16" terminal stud sizes to ensure robust and stable wiring connections.
• Emergency Starting Capability: Facilitates paralleling batteries for emergency starting, providing crucial backup when needed.

Recommended Pairings:

• Pair with Ancor Marine Grade™ Battery Cables for optimal conductivity and corrosion resistance.
• Consider the optional Perko Cable Spacer (Figure No. 0462) for installations requiring larger cable clearances.