| Relays & Limit Switches, Pushbuttons |
| Cutler-Hammer/Westinghouse |
| IDEC |
| Siemens |
| Rees |
| ABB |
|
| Capacitors |
| Spraque |
| ABB |
| Aerovox/Cornell Dubilier |
|
| Photo-Electric & Proximity Switches |
| Cutler-Hammer/Westinghouse |
| Square D/Telecanique |
| Omron |
|
| Enclosures & Wireway |
| Keystone |
| McKinstry |
| Queen |
| Schaefer |
| Hammond |
|
| Test Instruments |
| Calculated Industries |
| Amprobe |
| Greenlee |
| UEI |
|
| Tools |
| Thomas & Betts |
| Ideal |
| Klein |
| Greenlee |
|
| Terminal, Lugs & Tape |
| Panduit |
| 3M |
| Thomas & Betts |
| Greaves |
|
| Conduit |
| EMT |
| Rigid(Galv. & Alum.) |
| PVC |
| Sealtite |
| Flexible |
|
| Fittings |
| Killark |
| Thomas & Betts |
| Bridgeport |
| Russelstoll |
|
| Electrical Wire Connectors for |
| Motor Control |
| Communications Equipment |
| Computers |
| Video Equipment |
|