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ELECTRICAL
A Newmar coach's electrical and lighting system is designed for maximum reliability, functionality,
and style. Electrical wiring holes in the aluminum frame are ringed with plastic grommets to protect
wires from chafing. This category provides detailed information about the components of your 12
Volt and 120 Volt electrical systems, your chassis and house batteries, as well as your coach
management systems and fuse panels.
Under each sub-category, you have access to owners manuals, user guides, parts and service manuals, and product
specifications for each aspect of your coach's electrical system.
WARNING
Due to the risk of electrical shock, service should be performed by a qualified electrican or authorized service
technician. The electrical system may have multiple 120/240 volt power sources. All power sources must be
turned off, and any auto generator start features must be disabled prior to servicing.
12 VOLT ELECTRICAL SYSTEM
Provides general information about the components and functions of the 12 Volt Electrical System
(DC) in Newmar coaches.
POWER SOURCES
The 12 Volt Electrical System allows certain components to
maintain a low voltage from the battery bank. The battery
bank is controlled by the coach charging system, which
consists of a charge bridge solenoid, a bi-directional isolator
relay delay (BIRD), or a battery isolation manager (BIM).
When the coach engine is running, the alternator charges
the chassis batteries and may assist in charging the house
batteries through the BIM, BIRD, or Charge Bridge.
When the coach is connected to shore power or when the
coach generator is in use (when shore power is
unavailable), the converter or inverter/converter
combination recharges the house batteries, and with the
assistance of a BIM, BIRD, or Charge Bridge, it can also
charge the chassis batteries.
In addition to the alternator and converter, the coach may also be equipped with solar panels to provide an additional
option for charging your house batteries.
ALTERNATOR
The alternator is a belt-driven component attached to the coach engine and is supplied by the chassis manufacturer.
The alternator supplies power for chassis components such as batteries, lights, wipers, dash HVAC, and power seats,
as well as all of the driver controls located in the cockpit. The alternator charges the chassis batteries, but with the
addition of a BIM, BIRD, or Charge Bridge, it may also assist in charging the coach's house batteries.
© 2018 Copyright Newmar Corporation. All rights reserved. For the most up-to-date version of this content, and for more product-specific information, please refer to Newgle.
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