Maretron Current Transducer w/Cable - 400 Amp f/ACM100

The Maretron Current Transducer w/Cable – 400 Amp for ACM100 is a precision marine monitoring component designed for serious boaters and marine electricians who need accurate real-time insight into their vessel's electrical systems. Whether you're running a large displacement cruiser, a commercial fishing boat, or any vessel with substantial DC power demands, this current transducer provides the foundation for reliable system diagnostics and preventive maintenance. It integrates seamlessly with Maretron's ACM100 Alternating Current Monitor, giving you the visibility necessary to catch electrical anomalies before they become costly failures on the water.

Engineered to measure AC current loads up to 400 amps, this transducer employs a solid-state sensing design that captures precise electrical data without the voltage drop or heat generation associated with older shunt-style monitoring. The included cable terminates in a standardized Maretron connector, eliminating guesswork during installation and ensuring a weather-sealed connection critical to saltwater environments. At just one pound with compact 4 x 2 x 4 inch dimensions, the unit installs easily in engine rooms or electrical compartments with minimal footprint, while its robust construction withstands the vibration, thermal cycling, and corrosive salt-air exposure inherent to marine service.

Operators managing vessels with high-amperage loads—auxiliary generators, thruster systems, inverter banks, or refrigeration arrays—rely on this transducer to monitor system health and optimize power distribution across their DC bus. Installation pairs directly with the ACM100 monitor head, which displays current draw, load trends, and system faults on your existing Maretron N2K network or standalone display. Whether you're upgrading an aging electrical monitoring setup or equipping a new-build, this transducer is an essential diagnostic tool for any serious marine electrical system.