HUGHES CORP

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals

This includes establishments primarily engaged in manufacturing instruments for measuring and testing the characteristics of electricity and electrical signals. Examples of products made by these establishments are circuit and continuity testers, voltmeters, ohm meters, wattmeters, multimeters, and semiconductor test equipment.

Switchgear and Switchboard Apparatus Manufacturing

This includes establishments primarily engaged in manufacturing switchgear and switchboard apparatus.

Illustrative Examples:

Circuit breakers, power, manufacturing
Control panels, electric power distribution, manufacturing
Ducts for electrical switchboard apparatus manufacturing
Fuses, electric, manufacturing
Power switching equipment manufacturing
Switches, electric power (except pushbutton, snap, solenoid, tumbler), manufacturing

Relay and Industrial Control Manufacturing

This includes establishments primarily engaged in manufacturing relays, motor starters and controllers, and other industrial controls and control accessories.