© 2021 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.
98
ELECTRICAL
This article provides an overview of the transfer switch and the integrated surge protector.
The transfer switch allows your coach to be powered
by more than one power source, while only allowing
one active power source connection at a time. When
the generator is turned on, this switch automatically
transfers to generator power.
Surge protection was used on select coaches to protect
the coach from power surges during storms and poor
shore power conditions from the incoming shore
power connection. Today, most transfer switches have
integrated surge protection.
There will be a slight delay between the start of the
generator and the electrical connection. This delay
allows the generator to reach normal operating speed
without needing to supply a required load. When the
unit is plugged into shore power, an audible click will be
heard in the transfer switch box. The sound is normal
and indicates that the relay inside the transfer switch is
engaging the outside power source.
Transfer Switches and Surge Protectors
Product(s): This information is associated with more than one product.
Refer to Newgle for more information about the product(s) o
ff
ered for
your coach’s model year.
Source(s): Southwire Automatic Transfer Switch Troubleshooting Guide
(Models 40100, 40101, 40140, 41300, 41301)
Product(s): Southwire 50 Amp Automatic Transfer Switch (Model: 40101,
Newmar Part Number: 157536)
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 o
ff
, and any auto generator
start features must be disabled prior to servicing.
WARNING
!
After market surge protection placed at the shore power
supply source is an optional product, which provides an
increased layer of surge protection. However, it is not
required or installed by Newmar.
NOTE FROM NEWMAR
Southwire 50 Amp Automatic Transfer Switch (Model:
40101-001)
This article provides basic operation instructions for a Southwire 50 Amp Automatic Transfer Switch (Model: 40101).
Testing Operation
Plug the shore power cord into a good shore power
source and, after a short delay, shore power should be
transferred through and available for use. If the generator
is started after approximately 40 seconds, the transfer
switch should transfer power from shore power to
generator power. Turn the generator o
ff
and, after a short
delay, the transfer switch should switch back to the shore
power. (Source: Doc 505-00175a)
This transfer switch has two visual indicators designed to
give the user a quick indication of power conditions that
need to be corrected before using the coach.
Open Ground Indicator Illuminated: Unplug shore power.
Use a voltmeter to check ground and neutral. Voltage
should read -0-. If not, finding another power source is
recommended.
Reverse Polarity Indicator Illuminated: Unplug shore
power. Use a voltmeter to check ground and neutral.
Voltage should read -0-. If not, finding another power
source is recommended.
Summary of Contents for VENTANA 2022
Page 1: ...SM 2022...
