DV M TT 255 TT FM, DV M TT 255 FM 951315, 951 315, 951315, chống sét nguồn điện 3 pha, nhập khẩu thiết bị chống sét DEHN
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DV M TT 255 TT FM, DV M TT 255 FM 951315, 951 315, 951315, chống sét nguồn điện 3 pha, nhập khẩu thiết bị chống sét DEHN
DV M TT 255 TT FM, DV M TT 255 FM 951315, 951 315, 951315, chống sét nguồn điện 3 pha, nhập khẩu thiết bị chống sét DEHN
Download tài liệu DV M TT 255 FM
Hướng dẫn lắp đặt thiết bị chống sét DV M TT 255 FM
Download tài liệu thiết bị chống sét DEHN
- Prewired spark-gap-based type 1 and type 2 combined lightning current and surge arrester consisting of a base part and plug-in protection modules
- Maximum system availability due to RADAX Flow follow current limitation
- No tripping of 20 A gG fuses up to short-circuit currents of 50 kArms
- Discharge capacity up to 100 kA (10/350 µs)
- Capable of protecting terminal equipment
- Operating state / fault indication by green / red indicator flag in the inspection window
- Easy replacement of protection modules without tools due to module locking system with module release button
- Vibration and shock-tested according to EN 60068-2
Modular DEHNventil M TT 255 FM combined arrester Pluggable and modular four-pole combined arrester for use in 230/400 V TT and TN(C)-S systems, width: 8 mod. with remote signalling contact Type 1 + type 2 SPD according to EN 61643-11 RADAX Flow spark gap technology for follow current limitation Max. continuous operating voltage: 264 V a.c. Voltage protection level: <= 1.5 kV Lightning impulse current (10/350 µs): 100 kA Follow current extinguishing capability: up to 100 kArms Energy-coordinated according to IEC 62305-4 with arresters of the Red/Line series and terminal equipment
delivery and installation.
Brand: DEHN + SÖHNE
Type: DV M TT 255 FM
Part No.: 951 315
or equivalent.
|
Type |
DV M TT 255 FM |
|
Part No. |
951 315 |
|
SPD according to EN 61643-11 / IEC 61643-11 |
type 1 + type 2 / class I + class II |
|
Energy coordination with terminal equipment (≤ 5 m) |
type 1 + type 2 + type 3 |
|
Nominal voltage (a.c.) (UN) |
230 / 400 V (50 / 60 Hz) |
|
Max. continuous operating voltage (a.c.) [L-N] (UC) |
264 V (50 / 60 Hz) |
|
Max. continuous operating voltage (a.c.) [N-PE] (UC (N-PE)) |
255 V (50 / 60 Hz) |
|
Lightning impulse current (10/350 µs) [L1+L2+L3+N-PE] (Itotal) |
100 kA |
|
Specific energy [L1+L2+L3+N-PE] (W/R) |
2.50 MJ/ohms |
|
Lightning impulse current (10/350 µs) [L-N]/[N-PE] (Iimp) |
25 / 100 kA |
|
Specific energy [L-N]/[N-PE] (W/R) |
156.25 kJ/ohms / 2.50 MJ/ohms |
|
Nominal discharge current (8/20 µs) [L-N]/[N-PE] (In) |
25 / 100 kA |
|
Voltage protection level [L-N]/[N-PE] (UP) |
≤ 1.5 / ≤ 1.5 kV |
|
Follow current extinguishing capability [L-N]/[N-PE] (Ifi) |
50 kArms / 100 Arms |
|
Follow current limitation / Selectivity |
no tripping of a 20 A gG fuse up to 50 kArms (prosp.) |
|
Response time (tA) |
≤ 100 ns |
|
Max. backup fuse (L) up to IK = 50 kArms |
315 A gG |
|
Max. backup fuse (L-L') |
125 A gG |
|
Temporary overvoltage (TOV) [L-N] (UT) – Characteristic |
440 V / 120 min. – withstand |
|
Temporary overvoltage (TOV) [N-PE] (UT) – Characteristic |
1200 V / 200 ms – withstand |
|
Operating temperature range [parallel] / [series] (TU) |
-40 °C ... +80 °C / -40 °C ... +60 °C |
|
Operating state / fault indication |
green / red |
|
Number of ports |
1 |
|
Cross-sectional area (L1, L1', L2, L2', L3, L3', N, N', PE, 9) (min.) |
10 mm2 solid / flexible |
|
Cross-sectional area (L1, L2, L3, N, PE) (max.) |
50 mm2 stranded / 35 mm2 flexible |
|
Cross-sectional area (L1', L2', L3', N', 9) (max.) |
35 mm2 stranded / 25 mm2 flexible |
|
For mounting on |
35 mm DIN rails acc. to EN 60715 |
|
Enclosure material |
thermoplastic, red, UL 94 V-0 |
|
Place of installation / Degree of protection |
indoors / IP 20 |
|
Place of installation |
|
|
Degree of protection |
|
|
Capacity |
8 module(s), DIN 43880 |
|
Approvals |
KEMA, VDE, UL |
|
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 |
|
Extended technical data: |
--------------------------------- |
|
Voltage protection level [L-PE] (UP) |
2.2 kV |
|
For use in switchgear installations with prospective short-circuit currents of more than 50 kArms (tested by the German VDE) |
--------------------------------- |
|
– Max. prospective short-circuit current |
100 kArms (220 kApeak) |
|
– Limitation / Extinction of mains follow currents |
up to 100 kArms (220 kApeak) |
|
– Max. backup fuse (L) up to IK = 100 kArms |
315 A gG |
|
Weight |
1,28 kg |
|
GTIN |
4013364108189 |
|
PU |
1 pc(s) |
|
Part No. |
951 315 |
