{"product_id":"mastervolt-77020115-mastershunt-500-czone-battery-monitor","title":"Mastervolt 77020115 MasterShunt 500 CZone Battery Monitor","description":"\u003cp\u003eThe Mastervolt MasterShunt 500 CZone is a high-accuracy digital battery monitor designed to measure and distribute essential battery-bank information throughout an integrated marine, mobile or off-grid electrical system. Installed in the main DC connection near the battery bank, it measures current flow, voltage, state of charge and estimated runtime, then shares that information with compatible MasterBus, CZone and NMEA 2000 equipment such as chargers, inverter\/chargers, displays and system-control devices.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMonitors battery voltage, current, state of charge and estimated time remaining\u003c\/li\u003e\n\u003cli\u003eSupports MasterBus, CZone and NMEA 2000 communication\u003c\/li\u003e\n\u003cli\u003eMeasures up to 300 amps continuously\u003c\/li\u003e\n\u003cli\u003eHandles 400 amps for 10 minutes, 500 amps for five minutes and 600 amps for two minutes\u003c\/li\u003e\n\u003cli\u003eProgrammable alarms for low voltage, low state of charge and high voltage\u003c\/li\u003e\n\u003cli\u003eIntegrated real-time clock supports timers and automated system events\u003c\/li\u003e\n\u003cli\u003eCan initiate compatible generator auto-start and stop functions\u003c\/li\u003e\n\u003cli\u003eService mode helps preserve stored battery history during maintenance\u003c\/li\u003e\n\u003cli\u003eMultiple MasterShunt units can be installed in parallel for higher-current MasterBus systems\u003c\/li\u003e\n\u003cli\u003eAccepts optional Class T or ANL main fuses\u003c\/li\u003e\n\u003cli\u003eIncludes insulated protection around the high-current DC connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eApplication Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe MasterShunt 500 CZone is intended for battery-powered systems requiring accurate monitoring and integration, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRecreational and commercial marine vessels\u003c\/li\u003e\n\u003cli\u003eMotor yachts and cruising boats\u003c\/li\u003e\n\u003cli\u003eRecreational vehicles\u003c\/li\u003e\n\u003cli\u003eEmergency and specialty vehicles\u003c\/li\u003e\n\u003cli\u003eIndustrial battery systems\u003c\/li\u003e\n\u003cli\u003eMobile workshops and service vehicles\u003c\/li\u003e\n\u003cli\u003eOff-grid and infrastructure power systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOne MasterShunt monitors one battery bank. Additional units are required when separate battery banks must be monitored independently.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBattery and Electrical Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProduct version: MasterShunt 500 CZone\u003c\/li\u003e\n\u003cli\u003eBattery voltage: 12 or 24 volts DC\u003c\/li\u003e\n\u003cli\u003eLater hardware version K also supports 36- and 48-volt DC systems\u003c\/li\u003e\n\u003cli\u003eVoltage measurement range: 0–60 volts\u003c\/li\u003e\n\u003cli\u003eCurrent measurement range: 0–500 amps\u003c\/li\u003e\n\u003cli\u003eContinuous current capacity: 300 amps\u003c\/li\u003e\n\u003cli\u003eTen-minute current capacity: 400 amps\u003c\/li\u003e\n\u003cli\u003eFive-minute current capacity: 500 amps\u003c\/li\u003e\n\u003cli\u003eTwo-minute current capacity: 600 amps\u003c\/li\u003e\n\u003cli\u003eVoltage accuracy: ±0.6%\u003c\/li\u003e\n\u003cli\u003eCurrent accuracy: ±0.8%\u003c\/li\u003e\n\u003cli\u003eMaximum monitored battery capacity: 9,999 Ah\u003c\/li\u003e\n\u003cli\u003eNormal idle consumption: 23 mA\u003c\/li\u003e\n\u003cli\u003ePower-saving consumption with MasterBus off: Less than 1 mA\u003c\/li\u003e\n\u003cli\u003eSupported battery types: Flooded lead-acid, AGM, gel and lithium-ion\u003c\/li\u003e\n\u003cli\u003eProtection rating: IP21\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eDisplayed and Shared Information\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eWhen connected to a compatible Mastervolt or CZone display, the MasterShunt can provide:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBattery-bank voltage\u003c\/li\u003e\n\u003cli\u003eCharge or discharge current\u003c\/li\u003e\n\u003cli\u003eConsumed amp-hours\u003c\/li\u003e\n\u003cli\u003eRemaining battery capacity as a percentage\u003c\/li\u003e\n\u003cli\u003eEstimated operating time remaining\u003c\/li\u003e\n\u003cli\u003eCharger and inverter operating status\u003c\/li\u003e\n\u003cli\u003ePower Sharing information\u003c\/li\u003e\n\u003cli\u003eBattery alarms and special system events\u003c\/li\u003e\n\u003cli\u003eHistorical battery information\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA separate compatible display is required to view this information locally. The MasterShunt itself does not include a customer-facing display screen.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCommunication Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe 77020115 version supports:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMasterBus\u003c\/li\u003e\n\u003cli\u003eCZone\u003c\/li\u003e\n\u003cli\u003eNMEA 2000\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis distinguishes it from Mastervolt part number 77020110, which is the MasterBus-only version. Confirm the vessel’s network type before ordering.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eSystem Automation\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe MasterShunt can send battery information and event commands to compatible connected equipment. Supported system functions can include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLow-voltage warnings\u003c\/li\u003e\n\u003cli\u003eLow state-of-charge warnings\u003c\/li\u003e\n\u003cli\u003eHigh-voltage alarms\u003c\/li\u003e\n\u003cli\u003eTimed events\u003c\/li\u003e\n\u003cli\u003eAutomatic generator starting and stopping\u003c\/li\u003e\n\u003cli\u003eCharger and inverter control\u003c\/li\u003e\n\u003cli\u003eLoad-management actions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAvailable automation depends on the connected MasterBus or CZone devices and the way the system has been configured.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFuse Compatibility\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe MasterShunt includes a solid bus bar as standard. An optional main fuse can be installed within the housing using either:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClass T fuse\u003c\/li\u003e\n\u003cli\u003eANL fuse\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe fuse is not included and must be selected according to battery-bank short-circuit capacity, cable size, connected equipment and applicable marine electrical standards.\u003c\/p\u003e\n\u003cp\u003eMastervolt specifically identifies Class T fusing for systems with high available short-circuit current, including many lithium battery installations.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eDimensions and Weight\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eHeight: 5.9 inches \/ 150 mm\u003c\/li\u003e\n\u003cli\u003eWidth: 5.9 inches \/ 150 mm\u003c\/li\u003e\n\u003cli\u003eDepth: 2.6 inches \/ 65 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 1.5 lb \/ 0.7 kg\u003c\/li\u003e\n\u003cli\u003eDC terminal hardware: M8 bolts\u003c\/li\u003e\n\u003cli\u003eProtection rating: IP21\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eIncluded Components\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eMastervolt lists the 77020115 package as including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMasterShunt 500 CZone\u003c\/li\u003e\n\u003cli\u003eBattery-temperature sensor\u003c\/li\u003e\n\u003cli\u003eMasterBus terminator\u003c\/li\u003e\n\u003cli\u003eInsulating cover for the DC connections\u003c\/li\u003e\n\u003cli\u003eOne-metre Mastervolt-to-CZone drop cable\u003c\/li\u003e\n\u003cli\u003eDC terminal covers and connection hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePackage contents should be checked before installation, particularly when purchasing older or previously opened stock.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eFitment Notice\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003ePart number 77020115 is the CZone- and MasterBus-compatible MasterShunt 500. It should not be confused with part number 77020110, which does not include the same CZone interface.\u003c\/p\u003e\n\u003cp\u003eConfirm the following before ordering:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBattery-bank voltage\u003c\/li\u003e\n\u003cli\u003eMaximum continuous and surge current\u003c\/li\u003e\n\u003cli\u003eBattery chemistry\u003c\/li\u003e\n\u003cli\u003eRequired network protocol\u003c\/li\u003e\n\u003cli\u003eFuse type and rating\u003c\/li\u003e\n\u003cli\u003eNumber of battery banks to be monitored\u003c\/li\u003e\n\u003cli\u003eCompatible display or control interface\u003c\/li\u003e\n\u003cli\u003eAvailable mounting space near the battery bank\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSupport for 36- and 48-volt battery banks depends on the MasterShunt hardware revision. Verify that the unit is hardware version K or later before specifying it for those voltages.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eInstallation Notes\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eInstall the MasterShunt as close to the battery bank as practical. The shunt must be positioned so that all current entering or leaving the monitored battery bank passes through the measuring connection. Loads or charging sources connected directly to the battery side of the shunt will not be measured correctly.\u003c\/p\u003e\n\u003cp\u003eUse heavy-duty battery cables with properly crimped terminals and keep the conductors as short as practical. DC cable size and fuse protection must be selected for the installation’s maximum current and cable length.\u003c\/p\u003e\n\u003cp\u003eThe unit should be installed in a dry, protected location. Its IP21 rating does not permit direct exposure to rain, spray, bilge water or washdown. Mastervolt requires a compatible CZone tee connector when integrating the unit into a CZone network; the tee connector is not included.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eWhen This Product Needs Replacement\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eInspect or replace the MasterShunt if:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBattery readings remain inaccurate after recalibration\u003c\/li\u003e\n\u003cli\u003eCurrent or voltage values are missing or unstable\u003c\/li\u003e\n\u003cli\u003eThe device repeatedly loses communication with known-good network equipment\u003c\/li\u003e\n\u003cli\u003eDC terminals or the internal bus bar show heat damage\u003c\/li\u003e\n\u003cli\u003eThe housing or insulated terminal covers are cracked\u003c\/li\u003e\n\u003cli\u003eMoisture intrusion or corrosion is visible\u003c\/li\u003e\n\u003cli\u003eThe unit no longer stores battery history or state-of-charge information\u003c\/li\u003e\n\u003cli\u003eAlarm or automation events fail despite correct system programming\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBefore replacing the unit, inspect the battery connections, network cable, terminators, fuse, temperature sensor and system configuration. Incorrect wiring or a device connected on the wrong side of the shunt can produce inaccurate battery readings.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCompatible Displays and Accessories\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMastervolt EasyView 5 display – 77010310\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/mastervolt-smartremote-77010600-single-device-network-display\"\u003eMastervolt SmartRemote – 77010600\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eCompatible CZone Touch displays\u003c\/li\u003e\n\u003cli\u003eMasterBus network cables and terminators\u003c\/li\u003e\n\u003cli\u003eMastervolt-to-CZone drop cable\u003c\/li\u003e\n\u003cli\u003eCompatible NMEA 2000 displays\u003c\/li\u003e\n\u003cli\u003eClass T fuse and holder components\u003c\/li\u003e\n\u003cli\u003eANL fuse\u003c\/li\u003e\n\u003cli\u003eAdditional MasterShunt 500 units for separate battery banks or supported parallel installations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe MasterShunt 500 pairs well with the \u003ca href=\"\/products\/mastervolt-35513000-combimaster-12-3000-160-inverter-charger-2600w-12v\"\u003eMastervolt CombiMaster 12\/3000-160 Inverter\/Charger\u003c\/a\u003e for a fully integrated MasterBus\/CZone power system.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eAlternate Part Numbers\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMastervolt product code: 77020115\u003c\/li\u003e\n\u003cli\u003eProduct name: MasterShunt 500 CZone\u003c\/li\u003e\n\u003cli\u003eUnspaced catalogue reference: 77020115\u003c\/li\u003e\n\u003cli\u003eMasterBus-only version: 77020110 — not directly equivalent\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eParts Desk Insight\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThe MasterShunt 500 is more than a standalone battery gauge. It acts as the battery-information centre for an integrated Mastervolt or CZone system, allowing chargers, inverter\/chargers, displays and generator controls to respond to actual battery conditions. The 77020115 version is the correct choice when CZone or NMEA 2000 integration is required in addition to MasterBus.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51156151795748,"sku":"469-77020115","price":693.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/56ab4475-ed62-48ea-83e6-a3fcb3f43831.png?v=1785031141","url":"https:\/\/marisolmarine.com\/products\/mastervolt-77020115-mastershunt-500-czone-battery-monitor","provider":"Marisol Marine Company","version":"1.0","type":"link"}