| Manufacturer | Part Number | Description |
|---|---|---|
ABB
| 1SCA100431R1001 | neutral and earth terminals |
Calogic
| CA1004 | Micropower Voltage Reference |
| TCA1004 | (TCA1003 / TCA1004) Integrated AD Amplifiers | |
| TCA1003 | (TCA1003 / TCA1004) Integrated AD Amplifiers |