ST2+3 (DM) - compact

DM-024/1-L2-DJ

Order number: A06732

coupling impedance (L2 – inductance)

  • coarse and fine surge protection for 2-core signalling lines
  • installation close to protected equipment
  • for protection of communication interfaces of I<(>&<)>C, electronic security and fire detection systems, etc. (mainly for RS-485 interfaces) against impact of surge voltage
  • coarse and fine surge protection in differential mode (core – core) and common mode (core – PE)

Technical parameters

Parameter name Parameter value
Type of SPD D1,C1,C2,C3,B2
Location of SPD ST 2+3
Mounting DIN rail 35 mm
Nominal voltage Un 24 V DC
Maximum operating voltage Uc 25.00 V AC
Maximum operating voltage Uc 36.00 V DC
Nominal load current IL 2.000 A
Treshold frequency core-core f 0.15 MHz
Serial resistance per core R 0.22 Ω
Serial inductance per core L 100.00 uH
D1 total discharge current (10/350 µs) cores-PE ITotal 1.00 kA
C1 voltage protection level mode core-core Up 50.00 V
C1 test voltage mode core-core UOC 4.00 kV
C1 voltage protection level mode core-PE Up 50.00 V
C1 test voltage mode core-PE UOC 4.00 kV
B2 voltage protection level mode core-core Up 55.00 V
B2 test voltage mode core-core UOC 1.00 kV
B2 voltage protection level mode core-PE Up 55.00 V
B2 test voltage mode core-PE UOC 1.00 kV
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
C2 voltage protection level mode core-PE at In Up 75 V
C2 test voltage mode core-PE UOC 20.00 kV
C2 voltage protection level mode core-core at In Up 75 V
C2 test voltage mode core-core UOC 20.00 kV
C3 voltage protection level mode core-PE at 1 kV/µs Up 50 V
C3 voltage protection level mode core-core at 1 kV/µs Up 50 V
Response time core-core ta 1 ns
Response time core-PE ta 1 ns
Connection (input - output) terminals-terminals
Cross-section of connected conductors solid (max) 4.00 mm2
Cross-section of connected conductors stranded (max) 4.00 mm2
Degree of protection IP 20
Range of ambient temperatures (min/max) -40 / 80 °C
Humidity 5 - 95 %
According to standard EN 61643-21+A1,A2:2013, IEC 61643-21+A1,A2:2012
ETIM Class EC001625
Customs tariff number 85363010
EAN 8595090567325

Files for download

  • Product dimensions

  • Basic circuit diagram