KM-DMG-024/1-RB

Two-stage surge current arrester for signal lines
Coarse and fine surge protection for 2 core signalling networks.

Install close to equipment for protection of communication interfaces.

Category: Part: KM-DMG-024/1RB
Order number
KM-DM-048/1-RB
Connection (input - output)
screwless terminals - screwless terminals
Nominal voltageUn
24V DC
Maximum operating voltage (AC/DC)Uc
25V AC/36V DC
Nominal load currentIL
0.5A
C2 Nominal discharge current (8/20μs) per coreIn
5kA
C2 Nominal discharge current (8/20μs) cores-PEItotal
10kA
C2 Voltage protection level mode core-core at lnUp
50V
C2 Voltage protection level mode core-PE at lnUp
350V
C3 Voltage protection level mode core-core at 1kV/μsUp
45V
C3 Voltage protection level mode core-PE at 1kV/μsUp
500V
Response time core-core/coreta
1ns
Response time core-PEta
100ns
Serial resistance per coreR
1.6Ω
Threshold frequency core-coref
5MHz
Cross-section of connected conductors (solid) (min - max)
0.08mm² - 4mm²
Cross-section of connected conductors (stranded) (min - max)
0.08mm² - 2.5mm²
Degree of protection
IP20
Range of operating temperatures (min - max)
-40°C - +70°C
Mounting
DIN rail 35mm
According to standard
EN 61643-21+A1,A2:2013, IEC 61643-21+A1,A2:2012 / C2, C3
ETIM Class
EC 001625
Weight
35g (nett), 60g (gross)
  • Screwless terminals
  • Coupling impedance (resistance)
  • Use on systems up to 24 volts

Coarse and fine surge protection in differential mode (core – core) and coarse protection in common mode (core – PE).

EN 61643-11 (surge protection devices).