Electric devices (SEIKO)
| Earth leakage relay | GD-8 | 03T |
| 12T | ||
| 25T | ||
| 510T | ||
| GD-C | ― | |
| K4 | ||
| GD-D | ― | |
| K3 | ||
| K4 | ||
| K5 | ||
| GD-E | 4B | |
| 8B | ||
| GD-W | ||
| ZCT | GDZM | 16BT |
| 30AT | ||
| 42AT | ||
| 65AT | ||
| 80AT | ||
| 107AT | ||
| 16B | ||
| 30A | ||
| 42A | ||
| 65A | ||
| 80A | ||
| Input module | SLC | 16-1 |
| 16C-1 | ||
| SLE | 32-1FA | |
| 32-1HA | ||
| Output module | SOM | 16-1A |
| HLS Input module | SLE | 32-1CA |
| HLS Output module | SOE | 32-1CA |
| 32-1CB | ||
| 32-1CC | ||
| 24-1CA | ||
| Modbus Input module | SLC | 16-1MB |
| Relay / Detector | SDL-5 | |
| SDL225-5 | ||
| SCER-5 | ||
| SDL0A-1A-E | ||
| SDV | ||