CAUTION: Electric motors and electric motor
driven equipment will draw much greater amperage
for starting, than for running these motors. Follow
the chart “A” for code G electric motors, but pay
special attention to caution concerning the code L
electric motors.
CAUTION: Code L Electric Motors, used on
equipment such as air compressors, air
conditioners, or submersible water pump motors
require an extreme high amount of starting power,
up to 6 or 8 times the motor name plate running
amps. The gen-set wattage rating must be sized to
the electric motor starting watts.
THREE PHASE: Some models are available with
three phase power upon special request. The
nameplate rating will always be shown as KVA (Kilo
-Volt amps) rather than the watts for single phase.
If three phase output (KVA) is not given on
equipment nameplate, approximate output can be
determined by multiplying volts X amps X sq. root
of 3 X powerfactor, divided by 1000.
EXTENSION CORDS: When electric power is to be
provided to various loads at some distance from
generating set, extension cords are normally used.
These cords should be sized to allow for distance in
length and amperage so that the voltage drop between
the set and point of use is held to a minimum. See
Chart “B”.
CAUTION: Plugged in equipment damage can result
from low voltage due to small wire size in extension
cord or too long in extension cord length.
GROUND FAULT CIRCUIT INTERRUPTION: When
certain adverse conditions exist, an electric shock
potential is possible to the operator of all electric
generator sets. It is recommended by the NATIONAL
ELECTRICAL CODE (NEC) and OCCUPATIONAL
HEALTH AND SAFETY ADMINISTRATION (OSHA)
to utilize a device that will automatically disconnect
the electric load from the electric power source when
these health and the life threatening conditions exist.
Your GPE model generator set has this protection
located on each receptacle panel. See page 10 for
details.
These GFCI protection devices should be tested for
correct operation before each use. Test procedure
with gen-set in operation: See page 10, Item Q for
further information and operation details for GFCI
shock and overload protection on all GPE model
generators.
Article 305-6 of the National Electrical Code, l990,
states that ground fault protection for personnel on
construction sites shall be provided for all l25 volt, l5
amp and 20 amp receptacles. GILLETTE generators
are unique and exclusive by also protecting the 250
volt receptacles, as well. Gen-Pro portable
generators provide this personnel electric shock
protection by means of a "ground-fault circuit
interrupter" (GFCI) and an overload circuit breaker in
the same enclosure. This UL approved device meets
OSHA and NEC requirements for the ultimate in
electric shock prevention on job-site portable electric
power appliances.
WARNING: GFCI protection should not be
considered an all inclusive answer for total electrical
shock protection, as all possible use conditions are
too extensive to be considered.
WARNING: GFCI protection should not be used
directly or indirectly with life support apparatus
or associated circuitry.
Page 6
CHART A
FOR SINGLE PHASE MOTORS
VOLTS X AMPS X 1.73 (SQ.-ROOT-OF-3) X P.F. / 1000=KVA
ELEC. MOTOR
HORSE POWER
CODE G ELECTRIC MOTORS
*STARTING WATTS RUNNING WATTS
1/2 2000 1100
1 3800 1800
2 6000 2800
3 8000 4000
4 11000 5500
5 13000 6500
CHART B
AMPS
LOAD
DROP CORD LENGTH IN FEET
AT IN
#10 #12 #14 #16
240 V. WATTS
GA. CORD GA. CORD GA. CORD GA. CORD
10 2400 250 150 100 75
20 4800 125 75 50 25
30 7200 70 35 25 10
40 9600 50 15 10 *
50 12000 30 5 * *
60 14400 15 * * *
DETERMINING ALTERNATOR LOAD REQUIREMENTS
RUNNING TOTAL
APPLIANCE NOTES
WATTS WATTS
VCR (1) 70
Light Bulb 1000
Radio 100
Television (1) 100
Stereo (1) 120
Fry Pan 150
Home Computer (1) 150
Vacuum Cleaner 250
Attic Fan, 1/4 hp (2) 400
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