Lightning current discharge arrester (class I) with rare-gas-filled spark gap for the use in three-phase TNC systems. 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. Application in the non-measured area in front of energy meter only after consulting of the power network operator. Connection boxes in the pre-counter section for the use in 3 phase TNC sytems according to DIN VDE 0100-443 und -534.
- Connection Boxes with SPD Type 1
- Applicable at the boundaries LPZ 0A - 1
- Test standard: IEC 61643-11 / EN 61643-11
- Remote changeover contact (FM)
- Inflammability class according to UL 94 V0
- no leackage current
- Optical status indication (red pin appears)
- Degree of protection according to IEC EN 60529: IP 66
- Single modules can be replaced easily
- Sealable
| IEC category | Type 1 / class I |
| Nominal voltage ACUN | 230/400 V~ |
| Max. continuous operating voltage AC (50/60 Hz) Uc | 350 V~ |
| Lightning impulse current (10/350 µs) totalItotal | 75 kA |
| Lightning impulse current (10/350 µs) L-N/N-PE/L-PENIimp | - / - / 25 kA |
| Nominal discharge current (8/20 µs) L-N/N-PE/L-PENIn | - / - / 25 kA |
| Protection levelUp | ≤ 2,5 kV |
| Follow-on current extinguishing capability AC L-N (260 V AC) Ifi | 10 kAeff |
| Short-circuit withstand capability at max. back-up fuseISCCR | 50 kAeff |
| Max. acceptable backup fuse (branch wiring) | 250 A gG |
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. connection torque for terminals | 4,0 Nm |
| Inflammability class according to UL 94 | V0 |
| Max. operating voltage remote contact FM | 250 V AC/125 V DC |
| Max. operating current remote contact FM | 1 A AC/200 mA DC |
| Max. locking torque FM terminals | 0,25 Nm |
| Max. conductor cross section FM | 1,5 mm² |
| Dimensions of housing (H × W × D) | 300 x 300 x 132 mm |
| Cable feedthrough | 2x M50 |
| Power supply system | 3 phase TNC systems |