| Manufacturer part number (MPN) | 5SD74221 |
| EAN / GTIN | 4001869340302 |
| Sales unit | pcs |
| System configuration DC | No |
| System configuration IT | No |
| System configuration TN | No |
| System configuration TN-C | No |
| System configuration TT | No |
| System configuration other | No |
| Number of conductors (without earthing) | 1 |
| Nominal discharge surge current (8/20) | 40 kA |
| Max. discharge surge current (8/20) | 40 kA |
| Nominal voltage AC | 230 V |
| Max. continuous voltage AC | 350 V |
| Voltage protection level L-N | 1.4 kV |
| Voltage protection level N-PE | 1.5 kV |
| Max. overcurrent protection device, series connection (fuse) | 63 A |
| Short-circuit breaking capacity (Isccr) | 25 kA |
| Integrated short-circuit protection | No |
| Integrated backup fuse | No |
| Mounting method | DIN rail (top hat rail) 35 mm |
| Max. conductor cross section solid (solid, stranded) | 25 mm² |
| Max. conductor cross section flexible (fine-strand) | 16 mm² |
| With remote signalling contact | Yes |
| Signalling at the device | Optical |
| Category type 2 | Yes |
| Degree of protection (IP) | IP20 |
| Country of origin | Germany |
