| Nominal voltage | Uₒ | 230V / 50Hz – 60Hz | | |
| Maximum continuous voltage AC | U꜀ | 275V / 50Hz – 60Hz | | |
| Maximum load current | IL | 40A | 63A | 125A |
| L-N Maximum discharge current (8/20μs) | Iₘₐₓ | 50kA | 50kA | 50kA |
| L-N Impulse current (10/350μs) | Iᵢₘₚ | 6.25kA | 6.25kA | 6.25kA |
| L-N Nominal discharge current (15 x 8/20μs) | Iₙ | 20kA | 20kA | 20kA |
| L-N Voltage protection level @ 3kA (8/20μs) | Uₚ | <360V | <360V | <360V |
| N-PE Combined impulse current (10/350μs) | Iᵢₘₚ | 50kA | 50kA | 50kA |
| N-PE Combined nominal discharge current (15 x 8/20μs) | Iₙ | 50kA | 50kA | 50kA |
| N-PE Voltage protection level @ 1kV/μs | Uₚ | <1000V | <1000V | <1000V |
| Dimensions | 📐 | W 284mm X H 344mm X D 110mm | | |
| Weight | 📦 | 15kg | | |
| Product Datasheet | PDF | SFM1-40-50-275 | SFM1-63-50-275 | SFM1-125-50-275 |