Project Description



Sub-D dataline surge protector, fine protection for serial ports of computers and control systems against impact of transient overvoltage

  • For RS232, RS422, RS485 communication lines
  • All pins protected
  • Low voltage protection level
  • Fast and easy installation
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Type D9-12
SPD according to EN 61643-21 / IEC 61643-21 type 3 / class III
Nominal voltage Un 12 V
Max. continuous operating d.c. voltage Uc 15 V
C1 Nominal discharge current (8/20μs) line-SG (In) 0,1 kA
C1 Nominal discharge current (8/20μs) SG-PG (In) 0,1 kA
Voltage protection level line-SG for IC1 (Up) < 24 V
Voltage protection level SG-PG for IC1 (Up) < 200 V
Voltage protection level line-SG at 1 kV/μs C3 (Up) < 21 V
Voltage protection level SG-PG at 1 kV/μs C3 (Up) < 130 V
Cut-off frequency (fG) 10 MHz
Capacitance line-SG (C) 700 pF
Capacitance SG-PG (C) 350 pF
Range of operating temperatures (TU) -40/+80°C
Degree of protection IP 20
For mounting on female sub-D9 / male sub-D9
Enclosure material thermoplastic
Place of installation indoor installation


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