| Manufacturer part number (MPN) | T5N 400 PR221DS-LS/I In=400 4p |
| EAN / GTIN | 8015644554200 |
| HS code | 8536.90 |
| Sales unit | pcs |
| Number of poles | 4 |
| Rated permanent current Iu | 400 A |
| With integrated under voltage release | No |
| Overload release current setting | 160–400 A |
| Rated voltage | 690 V |
| Power loss | 16.5 W |
| Degree of protection (IP) | IP20 |
| Position of connection for main current circuit | Front side |
| Motor drive integrated | No |
| Type of electrical connection of main circuit | Bolt connection |
| Type of control element | Wing knob |
| With switched-off indicator | No |
| Rated short-circuit breaking capacity Icu at 400 V, 50 Hz | 36 kA |
| Adjustment range short-term delayed short-circuit release | 400–4000 A |
| Adjustment range undelayed short-circuit release | 400–4000 A |
| Suitable for DIN rail (top hat rail) mounting | No |
| Integrated earth fault protection | No |
| Motor drive optional | Yes |
| Device construction | Built-in device fixed built-in technique |
| DIN rail (top hat rail) mounting optional | No |
| Complete device with protection unit | Yes |
| Country of origin | Italy |