TM 10-7310-281-13&PMODERN BURNER UNIT (MBU)0002 00LOCATION AND DESCRIPTION OF MAJOR COMPONENTS0002 00-3DESCRIPTION OF SYSTEM COMPONENTSThe associated components of the MBU are illustrated and described below:Power Converter. Converts 120 V AC +4% to 24 VDC. Four MBUs can be powered through each of twooutput connectors. Refer to the appropriate powerconfiguration schematic beginning on page 0003. Apower switch turns the unit on and off. The converter iscapable of operating within the same environmentalconditions as the MBU.Battery Pack. Contains two sealed lead acidbatteries and an internal charger. It provides theelectrical storage to start and operate 3 MBUssimultaneously for 3 hours at 750F, or a 2 hour periodat -250F. The module is rechargeable through thestandard NATO vehicular power connector in 2 hoursat an ambient temperature of 750F, and in three hoursat -250F. The battery charger circuit preventsovercharge. A three position function switch controlsthe charging function as well as the voltage suppliedto the output connector. Indicator lights show the stateof the battery charge. The batteries and charger areassembled in an aluminum frame with handles and acover. The pack is capable of operating within thesame environmental conditions as the MBU.24V DC Power Cables.Two types of power cableextensions are furnished, a 15ft length for use in theMKT, and a 25ft length for use with all other systems.In addition, two types of two-branch power cables, onefor exclusive use in the MKT and a four-branch powercable are furnished to connect the MBUs to either oneof the power cable extensions, or directly to the powerconverter.NATO Adapter Cable . To facilitate the connectionbetween a vehicle and the battery module, or betweena vehicle and the MBUs directly, a 25ft adapter cableis provided that is compatible with the power-inreceptacle of the MBU and battery module, as well asthe vehicular output connector.
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