MasterShunt 500 CZone Digital Battery Monitor (77020115)
The 77020115 MasterShunt 500 CZone is an intelligent, high-precision DC battery monitor and current shunt that integrates Mastervolt battery management technology directly into CZone and NMEA 2000 digital switching networks. Designed to sit on the primary DC negative bus, it measures battery voltage, current, state of charge (SoC), and remaining time-to-empty, transmitting precise battery telemetry across the onboard network.
In addition to advanced battery monitoring, the MasterShunt 500 serves as a central DC distribution component. It features an integrated main system fuse holder (Class T or ANL depending on configuration) and an onboard system clock for automated system functions. Operating natively on both CZone and MasterBus CAN networks, it allows seamless setup, alarm routing, and automated generator start/stop triggers based on battery state of charge.
Key Features
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High-Precision Battery Telemetry: Accurately measures DC voltage, current, state of charge (0 - 100%), and remaining runtime.
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Dual Network Integration: Supports both CZone (NMEA 2000) and MasterBus communication protocols for flexible power architecture.
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Integrated Main DC Fuse Holder: Built-in fuse housing protects the main positive battery conductor while conserving panel space.
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Automated System Triggers: Configurable internal logic allows automatic generator starting or load shedding based on programmable battery voltage and SoC thresholds.
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Rugged Marine Enclosure: Corrosion-resistant, heavy-duty casing with high-current copper busbar connections engineered for demanding marine engine rooms.