ST1+2+3 (BDM, BDG) - plugable

BDM-024-V/4-JFR1

Order number: A06422

pluggable module, coupling impedance (R – resistance), line separated from protective earth via GDT

  • lightning current arrester with coarse and fine surge protection for four 1-core signalling lines
  • installation at the boundary of LPZ 0 and LPZ 1 zones or higher, at the line entry into building and also installation close to protected device
  • for protection of communication inter- faces of I&C, MaR systems, electronic security and fire detection systems, etc. (mainly for RS-485 interfaces) against impact of surge voltage
  • coarse and fine surge protection (core – GND) in differential mode and coarse surge protection in common mode (line – PE)

Technical parameters

Parameter name Parameter value
Type of SPD D1,C2
Location of SPD ST 1+2+3
Mounting DIN rail 35 mm
Nominal voltage Un 24 V DC
Nominal load current IL 1.000 A
Treshold frequency core-core f 4.00 MHz
Serial resistance per core R 0.80 Ω
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) GND-PE In 10.00 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 nominal discharge current (10/1000 µs) core-PE ISM 10 A
C3 nominal discharge current (10/1000 µs) core-core ISM 10 A
C3 voltage protection level mode GND-PE at 1 kV/µs Up 550.00 V
C3 voltage protection level mode core-GND at 1 kV/µs Up 46.00 V
Response time core-GND ta 1 ns
Response time GND-PE ta 100 ns
Connection (input - output) terminals-terminals
Cross-section of connected conductors solid (min) 0.14 mm2
Cross-section of connected conductors solid (max) 4.00 mm2
Cross-section of connected conductors stranded (min) 0.14 mm2
Cross-section of connected conductors stranded (max) 2.50 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 EC001625
Plug module BDM-024-V/4-J-0
Customs tariff number 85363010
EAN 8595090564225

Files for download

  • Product dimensions

  • Basic circuit diagram

Replacement module