2017 OWNERS MANUAL /
210
CIRCUIT BREAKERS
Models
All
Purpose
All major boat circuits are protected from shorting and overload
by resettable circuit breakers. When an electrical fault is detected,
mechanical switch circuit breakers will “trip” and automatically in-
terrupt the flow of electricity. In a circuit breaker, when the electrical
flow exceeds specified design tolerances, the electromagnetic bar
snaps and cuts off further electrical passage. (The XStar features a
complex, digital operation instead, with the same purpose.)
This can be extremely important in protecting persons on-board
and also in preventing electrical fires.
In a water setting, such as those in which boats operate, it is espe-
cially important to avoid electrical shocks. As a result, MasterCraft
utilizes GFI, or Ground Fault Interruption, circuit breaker boards,
except in the XStar. These are solid-state devices that sense when
there is a ground fault, which often occurs in instances involving
water penetration.
Circuit breakers are preferred over fuses in boats for most
operations because each fuse is usable only once. When the
electrical flow is interrupted through a fuse, it then has to be
replaced rather than reset. MasterCraft now uses digitally
resettable EPDM modules rather than fuses in every boat. Access
to the EPDM is very limited and should only be accessed by an
authorized MasterCraft dealer. Fuses can be reset however on
any of MasterCraft’s helm mounted digital display’s. For more
information regarding resetting the EPDM see your boat’s
respective screen operation in the chapters above.
BASIC
ELECTRICAL
COMPONENTS
Summary of Contents for NXT20 2017
Page 3: ...2017 OWNERS MANUAL SAFETY KNOWLEDGE ...
Page 27: ...2017 OWNERS MANUAL 48 2017MODEL FEATURESANDSPECS ...
Page 40: ...2017 OWNERS MANUAL 74 DASHESAND VIDEOSCREENS ...
Page 42: ...2017 OWNERS MANUAL 78 XANDXTSERIESINSTRUMENTPANEL 4 3 VIDEOSCREEN XSTARINSTRUMENTPANEL ...
Page 43: ...2017 OWNERS MANUAL 80 PROSTARINSTRUMENTPANEL NXTSERIESINSTRUMENTPANEL ...
Page 58: ...2017 OWNERS MANUAL 110 XANDXTSERIES VIDEOSCREEN OPERATIONSHV450 ...
Page 67: ...2017 OWNERS MANUAL 128 XSTAR VIDEOSCREEN OPERATIONS XSTARINSTRUMENTPANEL ...
Page 80: ...2017 OWNERS MANUAL 154 PROSTAR VIDEOSCREEN OPERATIONS ...
Page 97: ...2017 OWNERS MANUAL 188 NXT OPERATIONS ...
Page 101: ...2017 OWNERS MANUAL 196 NXT20 22 VIDEOSCREEN OPERATIONS ...
Page 107: ...2017 OWNERS MANUAL 208 BOAT OPERATIONS ...
Page 158: ...2017 OWNERS MANUAL 310 PREPARATION ...
Page 172: ...2017 OWNERS MANUAL 338 CAREAND MAINTENANCE ...
Page 204: ...2017 OWNERS MANUAL 402 TRAILERS ...