32 Installation TP-5977 7/98
120-V
Outside
Power
AC Vehicle Circuit
Ground Fault
Circuit Protection
L1
L2
Gen.
Set
N
N
N
L0
120 Volt
240-V
Outside
Power
AC Vehicle Circuit
Ground Fault
Circuit Protection
L1
L2
Gen.
Set
N
N
N
L0
240Volt
Figure 6-5. Transfer Switch Connections, 3-Wire
AC Circuit
6.6.2 Circuit Protection
TheACcircuitbreakerinterruptsgeneratoroutputinthe
event of an overload or short circuit in the wiring
between the alternator and generator set components.
Aftercorrectingthefault, resettheACcircuitbreakerby
placing it in the ON position.
Accidental starting.
Can cause severe injury or death.
Disconnect battery cables before
working on generator set. (Remove
negative (--) lead first when
disconnecting battery. Reconnect
negative (--) lead last when
reconnecting battery.)
WARNING
Disabling generator set. Accidental starting can cause
severe injury or death. Before working on the generator set
or connected equipment, disable the generator set asfollows:
1) Disconnect power to battery charger, if equipped.
2) Remove battery cables (remove negative (--) lead first).
Reconnect negative (--) lead last when reconnecting battery.
Follow these precautions to prevent starting of generator set
by the remote start/stop switch.
Hazardous voltage. Moving rotor.
Can cause severe injury or death.
Operate generator set only with all
guards and electrical enclosures in
place.
WARNING
Grounding generator set. Hazardous voltage can cause
severe injury or death. Electrocution is possible whenever
electricity is present. Open main circuit breakers of all power
sources before servicing equipment. Configure the
installation to electrically ground the generator set and
electrical circuits when in use. Never contact electrical leads
or appliances whenstanding inwater oron wetground,as the
chance of electrocution increases under such conditions.
Short circuits. Hazardous voltage/current can cause
severe injury or death. Shortcircuits can cause bodily injury
and/or equipment damage. Do not contact electrical
connections with tools orjewelry while making adjustments or
repairs. Remove wristwatch, rings, and jewelry before
servicing equipment.
Electricalbackfeed toutility. Hazardousbackfeedvoltage
can cause severe injury ordeath. Connectgenerator set to
building/campground electrical system only through an
approved device and after building/campground main switch
is open. Backfeed connections can cause serious injury or
death to utility personnel working on power lines and/or
personnel in the vicinity of the work area. Unauthorized
connectiontoutilityelectrical systemmay be unlawful insome
states and/or localities. Install a transfer switch to prevent
interconnection of generator set power and other sources of
power.
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