PP BCD TN 25/50/FM
Article Nr. : 381215
Combined arrester for the protection of low-voltage consumers’ installations in industry, business and residential areas against transient surges caused by lightning (LEMP) or switching actions in the network (SEMP). Combined two-pole arrester for 1-phase TN systems.
- Remote signalling contact: break contact
- Combined Arresters Class I+II+III (T1+T2+T3)
- Test standard: IEC 61643-11 / EN 61643-11
- No leakage currents, thus, allowing installation upstream of power meters
- Rare-gas-filled spark gap, hermetically sealed
- Degree of protection according to IEC EN 60529: IP 20
- Mounting on 35 mm DIN rail (EN 60715)
- EAC certification
| IEC category | Type 1 + 2 + 3 / class I+II+III |
| Nominal voltage ACUN | 230/400 V~ |
| Max. continuous operating voltage AC (50/60 Hz) Uc | 255 V~ |
| Insulation resistanceRisol | > 10 GΩ |
| Protection level at 100% lightn. imp. sparkover voltage (1.2/50µs)Up | ≤ 1,0 kV |
| Protection levelUp | ≤ 1,0 kV |
| Response timetA | < 50 ns |
| Lightning impulse current (10/350 µs) totalItotal | 50 kA |
| Lightning impulse current (10/350 µs) L-N/N-PE/L-PENIimp | 25 / 25 / - kA |
| Follow-on current extinguishing capability at Uc (50/60 Hz)Ifi | 4,0 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 | stranded 50/fine stranded 35 mm² |
| Recommended conductor cross section | 25 mm² |
| Max. connection torque for terminals | 4,0 Nm |
| Enclosure material / colour | polycarbonate (halogen-free) UL 94-V0 / yellow |
| Degree of protection (IEC EN 60529) | IP 20 |
| Mounting on | 35 mm DIN rail (EN 60715) |
| FM contact / contact type | break contact |
| Switching capacity FM | 250 V/2 A |
| Max. locking torque FM terminals | 0,25 Nm |
| Power supply system | 1 phase TN systems |
| Dimension (DIN 43880) | 4 TE |