DEHNrail modular
- Two-pole surge arrester consisting of a base part and a plug-in protection module
- High discharge capacity due to heavy-duty zinc oxide varistor/spark gap combination
- Energy coordination with other arresters of the Red/Line product family
- Operating state/fault indication by green / red indicator flag in the inspection window
- Narrow (modular) design according to DIN 43880
- Easy replacement of protection modules due to module locking system with module release button
- Vibration and shock-tested according to EN 60068-2
DEHNrail DR M 2P 255
Part No. 953200 DR M 2P 255
GTIN 4013364108301, Customs tariff No.: 85363030, Gross weight: 91.70 g, PU: 1.00 pc(s)
Disassembling DEHNrail DR M 2P 255
DEHNrail M 2P…
Two-pole surge arrester consisting of a base part and a plug-in protection module.
Technical data
| Type | DR M 2P 30 | DR M 2P 60 | DR M 2P 75 | DR M 2P 150 | DR M 2P 255 | |
| Part No. | 953 201 | 953 202 | 953 203 | 953 204 | 953 200 | |
| SPD according to EN 61643-11 / IEC 61643-11 | type 3 / class III | |||||
| Nominal voltage (a.c.) (UN) (50 / 60 Hz) | 24 V | 48 V | 60 V | 120 V | 230 V | |
| Max. continuous operating voltage (a.c.) (UC) (50 / 60 Hz) | 30 V | 60 V | 75 V | 150 V | 255 V | |
| Max. continuous operating voltage (d.c.) (UC) | 30 V | 60 V | 75 V | 150 V | 255 V | |
| Nominal load current (a.c.) (IL) | 25 A | |||||
| Nominal discharge current (8/20 μs) (In) | 1 kA | 1 kA | 2 kA | 2 kA | 3 kA | |
| Total discharge current (8/20 μs) [L+N-PE] (Itotal) | 2 kA | 2 kA | 4 kA | 4 kA | 5 kA | |
| Combination wave (UOC) | 2 kV | 2 kV | 4 kV | 4 kV | 6Â kA | |
| Combination wave [L+N-PE] (UOC total) | 4 kV | 4 kV | 8 kV | 8 kV | 10 kV | |
| Voltage protection level [L-N] (UP) | ≤ 180 V | ≤ 350 V | ≤ 400 V | ≤ 640 V | ≤ 1250V | |
| Voltage protection level[N-PE] (UP) | ≤ 630 V | ≤ 730 V | ≤ 730 V | ≤ 800 V | ≤ 1500 V | |
| Response time [L-N] (tA) | ≤ 25 ns | |||||
| Response time [L/N-PE] (tA) | ≤ 100 ns | |||||
| Max. mains-side overcurrent protection | 25 A gL/gG or B 25 A | |||||
| Short-circuit withstand capability for mains-side overcurrentprotection with 25 A gG (ISCCR) | 6 kArms | |||||
| Temporary overvoltage (TOV) [L-N] (UT) – Characteristic | — | — | — | — | 335 V / 5 sec. – withstand | |
| Temporary overvoltage (TOV) [L-N] (UT) – Characteristic | — | — | — | — | 440 V / 120 min. – safe failure | |
| Temporary overvoltage (TOV) [L/N-PE] (UT) – Characteristic | — | — | — | — | 335 V / 120 min. – withstand | |
| Temporary overvoltage (TOV) [L/N-PE] (UT) – Characteristic | — | — | — | — | 440 V / 5 sec. – withstand | |
| Temporary overvoltage (TOV) [L+N-PE] (UT) – Characteristic | — | — | — | — | 1200 V + UREF / 200 ms – safe failure | |
| Operating temperature range (TU) | -40°C…+80°C | |||||
| Operating state / fault indication | green / red | |||||
| Number of ports | 1 | |||||
| Cross-sectional area (min.) | 0.5 mm2Â solid / flexible | |||||
| Cross-sectional area (max.) | 4 mm2Â solid / 2.5 mm2Â flexible | |||||
| For mounting on | 35 mm DIN rails acc. to EN 60715 | |||||
| Enclosure material | thermoplastic, red, UL 94 V-0 | |||||
| Place of installation | indoor installation | |||||
| Degree of protection | IP 20 | |||||
| Capacity | 1Â module(s), DIN 43880 | |||||
| Approvals | KEMA, VDE, UL, CSA | |||||
DEHNrail M 2P … FM
Two-pole surge arrester consisting of a base part and a plug-in protection module; with floating remote signalling contact.
Technical data
| Type | DR M 2P 30 FM | DR M 2P 60 FM | DR M 2P 75 FM | DR M 2P 150 FM | DR M 2P 255 FM | |
| Part No. | 953 206 | 953 207 | 953 208 | 953 209 | 953 205 | |
| SPD according to EN 61643-11 / IEC 61643-11 | type 3 / class III | |||||
| Nominal voltage (a.c.) (UN) (50 / 60 Hz) | 24 V | 48 V | 60 V | 120 V | 230 V | |
| Max. continuous operating voltage (a.c.) (UC) (50 / 60 Hz) | 30 V | 60 V | 75 V | 150 V | 255 V | |
| Max. continuous operating voltage (d.c.) (UC) | 30 V | 60 V | 75 V | 150 V | 255 V | |
| Nominal load current (a.c.) (IL) | 25 A | |||||
| Nominal discharge current (8/20 μs) (In) | 1 kA | 1 kA | 2 kA | 2 kA | 3 kA | |
| Total discharge current (8/20 μs) [L+N-PE] (Itotal) | 2 kA | 2 kA | 4 kA | 4 kA | 5 kA | |
| Combination wave (UOC) | 2 kV | 2 kV | 4 kV | 4 kV | 6Â kA | |
| Combination wave [L+N-PE] (UOC total) | 4 kV | 4 kV | 8 kV | 8 kV | 10 kV | |
| Voltage protection level [L-N] (UP) | ≤ 180 V | ≤ 350 V | ≤ 400 V | ≤ 640 V | ≤ 1250V | |
| Voltage protection level[N-PE] (UP) | ≤ 630 V | ≤ 730 V | ≤ 730 V | ≤ 800 V | ≤ 1500 V | |
| Response time [L-N] (tA) | ≤ 25 ns | |||||
| Response time [L/N-PE] (tA) | ≤ 100 ns | |||||
| Max. mains-side overcurrent protection | 25 A gL/gG or B 25 A | |||||
| Short-circuit withstand capability for mains-side overcurrentprotection with 25 A gG (ISCCR) | 6 kArms | |||||
| Temporary overvoltage (TOV) [L-N] (UT) – Characteristic | — | — | — | — | 335 V / 5 sec. – withstand | |
| Temporary overvoltage (TOV) [L-N] (UT) – Characteristic | — | — | — | — | 440 V / 120 min. – safe failure | |
| Temporary overvoltage (TOV) [L/N-PE] (UT) – Characteristic | — | — | — | — | 335 V / 120 min. – withstand | |
| Temporary overvoltage (TOV) [L/N-PE] (UT) – Characteristic | — | — | — | — | 440 V / 5 sec. – withstand | |
| Temporary overvoltage (TOV) [L+N-PE] (UT) – Characteristic | — | — | — | — | 1200 V + UREF / 200 ms – safe failure | |
| Operating temperature range (TU) | -40°C…+80°C | |||||
| Operating state / fault indication | green / red | |||||
| Number of ports | 1 | |||||
| Cross-sectional area (min.) | 0.5 mm2Â solid / flexible | |||||
| Cross-sectional area (max.) | 4 mm2Â solid / 2.5 mm2Â flexible | |||||
| For mounting on | 35 mm DIN rails acc. to EN 60715 | |||||
| Enclosure material | thermoplastic, red, UL 94 V-0 | |||||
| Place of installation | indoor installation | |||||
| Degree of protection | IP 20 | |||||
| Capacity | 1Â module(s), DIN 43880 | |||||
| Approvals | KEMA, VDE, UL, CSA | |||||
| Type of remote signalling contact | changeover contact | |||||
| Switching capacity (a.c.) | 250 V / 0.5 A | |||||
| Switching capacity (d.c.) | 250 V / 0.1 A; 125 V / 0.2 A; 75 V / 0.5 A | |||||
| Cross-sectional area for remote signalling terminals | max. 1.5 mm2 solid / flexible | |||||
