| 620 - 629 : POWER | ||
|---|---|---|
| 620 | Power (Grouped) | |
| 621 | High voltage system | |
| 622 | Medium voltage system | |
| 623 | Low voltage system | |
| 624 | ||
| 625 | Uninterruptible power supply | |
| 626 | Battery power systems | |
| 627 | Power subcircuit | |
| 628 | Power trunking / conduit | |
| 629 | Parts and accessories | |