PP B TNS 50/100/FM-350
Article Nr. : 374125
The SPDs of the series PowerPro B feature a high thermal resistance and an outstanding discharge capability for lightning impulse currents of 50 kA (10/350 µs) per pole. Therefore, they can be applied according to DIN EN 62305 (VDE 0185-305). The arresters can be installed at the transition 0A to 1 according to the lightning protection zones concept. Multi-pole lightning current arrester type 1 (class I) for 3-phase TN-S systems.
- Remote signalling contact: break contact
- Lightning current arresters type 1 (class I)
- Test standard: IEC 61643-11 / EN 61643-11
- Discharge capacity up to 100 kA (10/350 µs)
- High insulation resistance
- High TOV resistance
- High quenching of follow-on short-circuit currents
- Operates independently of atmospheric air pressure and ambient humidity
- Degree of protection according to IEC EN 60529: IP 20
- Mounting on 35 mm DIN rail (EN 60715)
- EAC certification
| IEC category | Type 1 / class I |
| Nominal voltage ACUN | 230/400 V~ |
| Max. continuous operating voltage AC (50/60 Hz) Uc | 350 V~ |
| Insulation resistanceRisol | >10 GΩ |
| Protection level at 100% lightn. imp. sparkover voltage (1.2/50µs)Up | ≤ 4,0 kV |
| Protection levelUp | ≤ 4,0 kV |
| Response timetA | <50 ns |
| Lightning impulse current (10/350 µs) totalItotal | 100 kA |
| Lightning impulse current (10/350 µs) L-N/N-PE/L-PENIimp | 50 / - / - kA |
| Follow-on current extinguishing capability at Uc (50/60 Hz)Ifi | 4 kA |
Additional Information
| Short-circuit withstand capability at max. back-up fuseISCCR | 50 kAeff |
| Max. acceptable back-up fuse F2 (spur wiring) | 250 A gG |
| Max. acceptable back-up fuse F1 (serial wiring) | 125 A gG |
| Operating temperature rangeTU | -40 - +80 °C |
| Max. conductor cross section | 50 mm² stranded/35 mm² flexible |
| Recommended conductor cross section | 25 mm² |
| Max. connection torque for terminals | 4,0 Nm |
| Enclosure material / colour | polycarbonate (halogen-free) UL 94-V0 / yellow |
| Min. conductor cross section at terminals | 4mm² solid/ 2,5mm² flexible |
| Switching capacity FM | 250 V/2 A |
| Max. conductor cross section FM | 1,5 mm² |
| Max. locking torque FM terminals | 0,25 Nm |
| Power supply system | 3 phase TNS systems |
| Dimension (DIN 43880) | 8 TE |