They provide extremely high discharge capacity with at the same time very low protection levels and they also do not need any damageable internal or external electronic trigger. Lightning current discharge arrester with rare-gas-filled spark gap and very low protection level < 1.5 kV for the use in 2-phase TT systems. Connection boxes in the pre-counter section for the use in 3 phase TT or TNS sytems according to DIN VDE 0100-443 und -534. Application in the non-measured area in front of energy meter only after consulting of the power network operator.
- Connection boxes with SPD type 1 + 2
- Applicable at the boundaries LPZ 0A - 2
- Test standard: IEC 61643-11 / EN 61643-11
- Inflammability class according to UL 94 V0
- Degree of protection according to IEC EN 60529: IP 66
- Remote changeover contact (FM)
- no leackage current
- Single modules can be replaced easily
- Sealable
| IEC category | Type 1 + 2 / class I+II |
| Nominal voltage ACUN | 230/400 V~ |
| Max. continuous operating voltage AC (50/60 Hz) Uc | 350 V~ |
| Lightning impulse current (10/350 µs) totalItotal | 100 kA |
| Lightning impulse current (10/350 µs) L-N/N-PE/L-PENIimp | 25 / 100 / - kA |
| Nominal discharge current (8/20 µs) L-N/N-PE/L-PENIn | 25 / 100 / - kA |
| Protection levelUp | ≤ 1,5 kV |
| Follow-on current extinguishing capability AC L-N (260 V AC) Ifi | 4 kAeff |
| Follow-on current extinguishing capability AC N-PEIfi | 100 Aeff |
| Short-circuit withstand capability at max. back-up fuseISCCR | 50 kAeff |
Additional Information
| Max. acceptable backup fuse (V-type through wiring) | 125 A gG |
| Operating temperature rangeTU | -40 - +80 °C |
| Min. conductor cross section at terminals | 10 mm² solid/flexible |
| Max. conductor cross section | 50 mm² stranded/35 mm² flexible |
| Max. conductor cross section FM | 1,5 mm² |
| Max. connection torque for terminals | 4,0 Nm |
| Max. locking torque FM terminals | 0,25 Nm |
| Max. operating voltage remote contact FM | 250 V AC/125 V DC |
| Max. operating current remote contact FM | 1 A AC/200 mA DC |
| Dimensions of housing (H × W × D) | 300 x 300 x 132 mm |
| Cable feedthrough | 2x M50 |
| Power supply system | 3 phase TNS and TT systems |