Don't Overload Generator - Briggs & Stratton 40248 Operator's Manual

Don't Overload Generator

Capacity
You must make sure your generator can supply enough
rated (running) and surge (starting) watts for the items
you will power at the same time. Follow these simple
steps:
1. Select the items you will power at the same time.
2. Total the rated (running) watts of these items. This is
the amount of power your generator must produce
to keep your items running. See Figure 13.
3. Estimate how many surge (starting) watts you will
need. Surge wattage is the short burst of power
needed to start electric motor-driven tools or
appliances such as a circular saw or refrigerator.
Because not all motors start at the same time, total
surge watts can be estimated by adding only the
item(s) with the highest additional surge watts to the
total rated watts from step 2.
Example:
Total Rated (Running) Watts
Highest Additional Surge Watts
Total Generator Output Required = 4875
Power Management
To prolong the life of your generator and attached
devices, it is important to take care when adding electrical
loads to your generator. There should be nothing
connected to the generator outlets before starting it's
engine. The correct and safe way to manage generator
power is to sequentially add loads as follows:
1. With nothing connected to the generator, start the
engine as described in this manual.
2. Plug in and turn on the first load, preferably the
largest load you have.
3. Permit the generator output to stabilize (engine runs
smoothly and attached device operates properly).
4. Plug in and turn on the next load.
5. Again, permit the generator to stabilize.
6. Repeat steps 4 and 5 for each additional load.
16 www.briggsandstratton.com
= 3075
= 1800
Tool or Appliance
Essentials
Light Bulb - 75 watt
Deep Freezer
Sump Pump
Refrigerator/Freezer - 18 Cu. Ft.
Water Well Pump - 1/3 HP
Heating/Cooling
Window AC - 10,000 BTU
Window Fan
Furnace Fan Blower - 1/2 HP
Kitchen
Microwave Oven - 1000 Watt
Coffee Maker
Electric Stove - Single Element
Hot Plate
Family Room
DVD/CD Player
VCR
Stereo Receiver
Color Television - 27"
Personal Computer w/17" monitor
Other
Security System
AM/FM Clock Radio
Garage Door Opener - 1/2 HP
Electric Water Heater - 40 Gallon
DIY/Job Site
Quartz Halogen Work Light
Airless Sprayer - 1/3 HP
Reciprocating Saw
Electric Drill - 1/2 HP
Circular Saw - 7 1/4"
Miter Saw - 10"
Table Planer - 6"
Table Saw/Radial Arm Saw - 10"
Air Compressor - 1-1/2 HP
Figure 13 — Wattage Reference Guide
Never add more loads than the generator capacity.
Take special care to consider surge loads in
generator capacity, as described above.
*Wattages listed are approximate only. Check tool or
appliance for actual wattage.
Additional
Rated*
Surge
(Running)
(Starting)
Watts
Watts
75 -
500 500
800 1200
800 1600
1000 2000
1200 1800
300 600
800 1300
1000 -
1500 -
1500 -
2500 -
100 -
100 -
450 -
500 -
800 -
180 -
300 -
480 520
4000 -
1000 -
600 1200
960 960
1000 1000
1500 1500
1800 1800
1800 1800
2000 2000
2500 2500