Blue Sea 8257 AC Current Transformer

The Blue Sea 8257 AC Current Transformer is a precision marine electrical component designed for vessels that require accurate AC current monitoring and metering. This transformer allows your onboard electrical system to measure alternating current safely and reliably, isolating high-amperage circuits from sensitive measurement instrumentation.

Built to Blue Sea Systems' exacting marine standards, this current transformer steps down AC current to measurable levels without introducing significant voltage drop or heat generation. Its compact form factor—measuring just 2 by 1 by 4 inches and weighing only 0.3 pounds—fits easily into tight electrical compartments common on cruising sailboats and motor vessels.

Cruising sailors, live-aboard boaters, and marine electricians rely on the 8257 to integrate with digital panel meters, shore power monitors, and energy management systems that demand precise AC measurements. Its robust construction handles the vibration, salt spray, and thermal cycling that characterize the marine environment, ensuring long-term stability and accuracy in your electrical metering infrastructure.