Glossary of Terms

Alternator - A device that converts mechanical energy (an engine) into electrical energy (a generator), for use in any type 120/240 volt AC equipment.

Amperage – The strength or intensity of an electric current, measured in Amperes (Amps).

Automatic Standby Generator – A generator permanently installed into your home electrical system, connected directly to a natural gas or propane fuel supply and designed to automatically start and shut off as needed.

Automatic Transfer Switch – A system used with a standby, permanently installed generator that allows for a safe simultaneous connection and transfer between your home’s electrical system and the generator.

Ground – A connection between electrical circuits and the earth.

Load – The amount of electricity required to run an appliance.

NEMA 3R
– Transfer switch enclosure intended for outdoor use primarily to provide a degree of protection against falling rain and sleet; undamaged by ice which forms on the enclosure. This is the most common outdoor enclosure.

Running Wattage
– The amount of electricity necessary to run an appliance continuously.

Sound-Attenuated Enclosure
– A custom enclosure used to lower decibels of the generator.

Starting Wattage – The amount of electricity necessary to start the electric motor in some tools and appliances.

Volt – The unit of electrical force.

Watt – A unit of electrical power (Volts x Amps = Watts).

Wire Gauge – The size of the wire used to transmit electrical current. Wire gauge must be large enough to accommodate the amperage rating of the appliance.