Fuses+holders for protection of 3-phase+N Type 1 AC SPD
SFD1-25S-40
Part Number: 64057
- Specific Fuses (SPD Fusing Disconnectors) for short circuit protection of AC SPD
- For Type 1 SPD
- Surge current withstand: 25 kA (@10/350µs)
- Very compact
- Included fuses
- Remote signaling and status signaling
Datasheet
The SFD range has been especially designed to associated with Type 1 SPDs. These very specific fuses are able to conduct huge surge currents in rather small dimensions to protect Type 1 SPDs against harsh current circuit failures.
In order to comply IEC 61643-11 standards, AC power SPD must be protected against short circuit failures: these specific fusing disconnectors must be installed in the SPD branch.
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| AC system | IT | |
| Max. AC operating voltage | Uc | 500 Vac |
| Nominal discharge current | In | 80 kA |
| Max. discharge current | Imax | 100 kA |
| Impulse current by pole | Iimp | 25 kA |
| Breaking capacity | 100 000 A | |
| Residual voltage | Up | < 0.5 kV @ 25 kA |
| Fuse configuration | Cylindrical 22x58 mm | |
| Fuse holder configuration | Circuit breaker configuration for 3-phase+N | |
| Mounting | Symmetrical rail 35 mm (EN 60715) | |
| Accessory(s) provided | Fuse(s) included | |
| Operating temperature | Tu | -40/+85°C |
| Protection rating | IP20 | |
| Disconnection indicator | Striker | |
| Spare module(s) | SFD1-25 | |
| Remote signaling of disconnection | Yes | |
| Dimensions | See diagram |
| Standards compliance | EN 61643-11 /IEC 61643-11 /EN 60269-1/EN 60269-2/IEC 60269-1/IEC 60269-2 |
| Equivalent rated AC current | 250 A |
