| Terms | Applicable Categories |
|---|---|
| gauge pressure | Pressure Sensors |
| General Purpose Relays | General Purpose Relays |
| global symbol | Programmable Controllers |
| gluing | General Purpose Relays |
| gray code | Rotary Encoders |
| Grid | Programmable Terminals |
| grip output | Safety Switches |
| ground potential | Networks |
| ground relay | Measuring / Motor Protective Relays |
| ground terminal | Limit Switches |
| Group | Programmable Terminals |
| group number | Wireless Components |
| Guard Lock Safety-door Switch | Safety Door Switches |