| Terms | Applicable Categories |
|---|---|
| TR Area | Programmable Controllers |
| trace memory | Programmable Controllers |
| transfer | General Purpose Relays |
| transfer output | Temperature Controllers |
| transferring data using a Memory Card | Programmable Terminals |
| transistor output | Programmable Controllers |
| transmission delay | Networks |
| transmission distance | Networks |
| travel time | Temperature Controllers |
| triac output | Programmable Controllers |
| triangulation | Photoelectric Sensors |
| trigger circuit | Solid-state Relays |
| tripping | Inverters |
| Troubleshooter SAP | Programmable Terminals |
| TV rating (UL/CSA) | General Purpose Relays |
| twin contacts | General Purpose Relays |