ST2+3 (DM) - compact
DM-024/1-R-DJ
Order number: A06728
coupling impedance (R – resistance)
- 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 | 0.500 A |
| Treshold frequency core-core | f | 4.00 MHz |
| Serial resistance per core | R | 1.00 Ω |
| D1 total discharge current (10/350 µs) cores-PE | ITotal | 1.00 kA |
| C1 voltage protection level mode core-core | Up | 65.00 V |
| C1 test voltage mode core-core | UOC | 4.00 kV |
| C1 voltage protection level mode core-PE | Up | 65.00 V |
| C1 test voltage mode core-PE | UOC | 4.00 kV |
| B2 voltage protection level mode core-core | Up | 50.00 V |
| B2 test voltage mode core-core | UOC | 1.00 kV |
| B2 voltage protection level mode core-PE | Up | 50.00 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 | 8595090567288 |
Files for download
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Product dimensions
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Basic circuit diagram
