ST1 (BD) - compact

BD-250-T

Order number: A05822

compact device

  • lightning current arrester of 2-core signalling lines
  • installation at the boundary of LPZ 0 and LPZ 1 zones at the line entry into building
  • mainly for protection of telecommunication lines against surge voltage

Technical parameters

Parameter name Parameter value
Type of SPD D1,C2
Location of SPD ST 1
Mounting DIN rail 35 mm
Maximum operating voltage Uc 128.00 V AC
Maximum operating voltage Uc 180.00 V DC
Nominal load current IL 1.600 A
Treshold frequency core-core f 120.00 MHz
D1 impulse discharge current (10/350 µs) per core Iimp 2.50 kA
D1 total discharge current (10/350 µs) cores-PE ITotal 5.00 kA
C2 nominal discharge current (8/20 µs) per core In 10.00 kA
C2 total discharge current (8/20 µs) cores-PE ITotal 20.00 kA
C3 voltage protection level mode core-PE at 1 kV/µs Up 550 V
C3 voltage protection level mode core-core at 1 kV/µs Up 550 V
Response time core-core ta 100 ns
Response time core-PE ta 100 ns
Connection (input - output) terminals-terminals
Cross-section of connected conductors solid (max) 6.00 mm2
Cross-section of connected conductors stranded (max) 6.00 mm2
Degree of protection IP 20
Range of ambient temperatures (min/max) -40 / 70 °C
According to standard EN 61643-21+A1,A2:2013, IEC 61643-21+A1,A2:2012
ETIM Class EC001466
Customs tariff number 85363010
EAN 8595090558224

Files for download

  • Product dimensions

  • Basic circuit diagram