381208_PP_BCD_TN_25_50LED_M_v03.jpg
Combined two-pole arrester for 1-phase TN systems.
  • Combined Arresters Class I+II+III (T1+T2+T3)
  • Test standard: IEC 61643-11 / EN 61643-11
  • Surge arrester based on varistors (MOV) and GDT
  • Execution with a 40 kA MOV
  • Very low voltage protection level
  • EAC certification
  • Not leackage current free
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 350 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
Residual voltage at 5kA (8/20 μs)Ures 600 V
Lightning impulse current (10/350 µs)Iimp 25 kA
Nominal discharge current (8/20 µs)In 40 kA
Response timetA <50 ns
Additional Information
Follow-on current extinguishing capability at Uc (50/60 Hz)Ifi 4,0 kA
Short-circuit withstand capability at max. back-up fuseISCCR 25 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 (IEC min. 16 mm²) 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)
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 1 phase TN systems
Dimension (DIN 43880) 4 TE