Balmar 48V Alternator Overvoltage Protection Module

The Balmar Alternator Protection Module provides best-in-class surge protection using technology developed for the automotive industry. That technology has been adapted specifically for the demands of a marine electrical system.

It protects against battery switch disconnects, lithium battery BMS disconnects, and surges from solenoids, combiners, starters, and other motors. These are the kind of sudden electrical events that can happen without warning on a boat running several high-draw systems at once.

The APM excels in both short-duration and longer-duration voltage spikes, where lesser protection products tend to fail. This 48V version is built specifically for 48-volt systems. See what else we carry in marine alternators.

• Automotive-grade surge protection technology
• Protects against battery switch and BMS disconnects
• Handles both short and longer-duration spikes
• Built for 48V systems