Item #874763

MasterVolt MasterShunt 500 CZone Enhanced Battery Monitor - 77020115

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MasterVolt MasterShunt 500 CZone Enhanced Battery Monitor - 77020115

Item # 874763


Mastervolt's MasterShunt 500 CZone is an integrated battery monitor that shares information about the battery bank with other MasterBus, CZone or NMEA 2000 enabled devices such as battery chargers, inverter/chargers and displays.


  • MasterBus, CZone and NMEA 2000 communication interface
  • Fits in a CZone system including setup tools and configuration file
  • Provides the information needed for monitoring your battery bank and controlling your system
  • Digital shunt provides energy systems with extensive information and historical data
  • Programmable events and an integrated real time clock make it possible to fully automate your system
  • Service mode prevents memory loss during system maintenance
  • Multiple MasterShunt models may be installed in parallel for a higher current
  • Very accurate and reliable determination of State of Charge (SOC)
  • Supplied with an internal bus bar, to be used in situations where an external fuse holder is selected
  • In case the MasterShunt is installed close to the battery, the bus bar may be replaced by either an ANL type or Class T main fuse, saving both space and cost (sold separately)
  • For use in marine, mobile, industrial, infrastructure where batteries need to be monitored for increased reliability, battery life comfort and runtime
  • Straight forward, easy to install
  • Freedom of choice for fuse type, rating and location
  • Robust, marine grade housing designed to isolate the DC connections


  • Communication interfaces: MasterBus, CZone, NMEA 2000
  • Battery types: Gel, AGM, flooded, Lithium Ion
  • Battery voltage: 12, 24, 36 or 48 V DC
  • Voltage measurement: 0-60 V (0.1V resolution)
  • Voltage accuracy: ± 0.6 % ± 1 digit
  • Current measurement: 0-10A: <0.2A resolution, 10-100A: <0.5A resolution, 100-600A: <5A resolution
  • Current accuracy: ± 0.8 % of reading ± 1 digit
  • Maximum current (With busbar or T fuse 500A): 300A continuously, 400A for 10 min, 500A for 5 min, 600A for 2 min
  • Parallel operation: Yes, for load currents which exceed 300A continuously
  • Amp hours configuration: 30-10000 Ah (5 Ah resolution)
  • Time remaining: 0-480 hours (1 min resolution)
  • State of charge accuracy ± 1%
  • Supply voltage: 8-60 V DC Main fuse bus bar included in MasterShunt, or Class T main fuse (500A) to be ordered separately
  • Idle consumption: 23 mA (normal operation), <1 mA (power saving, MasterBus off)
  • System information: e.g. Time remaining, voltage, current, state of charge
  • Programmable alarms: Warning low voltage, low state of charge, high voltage
  • Remote panel: Touch 10, Touch 5


  • Dimensions: 5.9 x 5.9 x 2.6 inch (150 x 150 x 65 mm)
  • Weight: 1.5 lb (0.7 kg)
  • Protection degree: IP21

Mastervolt MasterShunt 500 CZone Product Information

Mastervolt MasterShunt 500 User and Installation Manual (1.14 MB)


This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm.

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Part Numbers for MasterVolt MasterShunt 500 CZone Enhanced Battery Monitor - 77020115

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