HSAF3/250 S
Article number: 30 309- Three-phase, two-stage surge arresters type T2+T3 equipped with high-frequency filters for serial connection.
- Intended for protection of electronic appliances against the effects of switching, induced and residual overvoltage generated in LV power supply systems.
- Remote monitoring is solved on the basis of a potential-free swithing contact.
- Any installation position without affecting function and parameters.
- Produced in basic version for mounting straight onto the switchboard’s construction by screws M8.
- S indication specifies a version with remote monitoring.
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| Test class according to EN 61643-11:2012 (IEC 61643-11:2011) | T2, T3 | |
| System | TN-C-S, TN-S | |
| Number of poles | 4 | |
| Rated operating AC voltage | UN | 230 V |
| Maximum continuous operating voltage AC | UC | 320 V |
| Rated load current | IL | 250 A |
| Open circuit voltage of the combination wave generator (L/N, L/PE) | UOC | 6 kV |
| Open circuit voltage of the combination wave generator (N/PE) | UOC | 10 kV |
| Voltage protection level at UOC (L/N) | Up | < 1.25 kV |
| Nominal discharge current for class II test (8/20) L/N, L/PE | In | 20 kA |
| Nominal discharge current for class II test (8/20) N/PE | In | 50 kA |
| Maximum discharge current (8/20) | Imax | 40 kA |
| Impulse discharge current for class I test (10/350) N/PE | Iimp | 50 kA |
| Total discharge current (8/20) L1+L2+L3+N->PE | ITotal | 50 kA |
| Asymmetrical attenuation of filter at f = 1.5 MHz | > 70 dB | |
| Asymmetrical attenuation of filter at f = 0.15 ÷ 30 MHz | > 30 dB | |
| Temporary overvoltage test (TOV) for tT = 5 s (L/N) | UT | 337 V |
| Temporary overvoltage test (TOV) for tT = 120 min (L/N) | UT | 440 V |
| Temporary overvoltage test (TOV) for tT = 0.2 s (N/PE) | UT | 1 200 V |
| Response time (L/N) | tA | < 25 ns |
| Response time (L/PE, N/PE) | tA | < 100 ns |
| Power dissipation at 20 °C | Pz | < 70 W |
| Maximal back-up fuse | 250 A gL/gG | |
| Residual current | IPE | ≤ 5 µA |
| Follow current interrupt rating (N/PE) | Ifi | 0.1 kArms |
| Lightning protection zone | LPZ 1-2, LPZ 2-3, LPZ3 | |
| Housing material | Steel plate 0.8 mm | |
| Degree of protection | IP20 | |
| Operating temperature | ϑ | - 40 ÷ 55 °C |
| Humidity range | RH | 5 ÷ 95 % |
| Recommended cross-section of connected conductors | S | 120 mm2 |
| Clamp fastening range (solid conductor) | 35 ÷ 240 mm2 | |
| Clamp fastening range (stranded conductor) | 35 ÷ 240 mm2 | |
| Tightening moment | 26 | |
| Installation | Using the M8 screws on the chassis | |
| Operating position | Any | |
| Product placement environment | Internal | |
| Signalling at the device | None | |
| Remote signalling | Yes | |
| Potential free signal contact (S) (recommended cross-section of remote monitoring max. 1 mm2) | AC: 250 V / 0.5 A, DC: 250 V / 0.1 A | |
| Includes EMI / EMC filter | Yes | |
| Modular design | No | |
| Lifetime | > 100 000 h |