DSH TT 255 FM, DSH TT 255 FM 941 315, 941 315, 941315, nhập khẩu chống sét nguồn điện 3 pha, DEHNshield TT FM, DEHN + SÖHNE
DSH TT 255 FM, DSH TT 255 FM 941 315, 941 315, 941315, nhập khẩu chống sét nguồn điện 3 pha, DEHNshield TT FM, DEHN + SÖHNE
DSH TT 255 FM, DSH TT 255 FM 941 315, 941 315, 941315, nhập khẩu chống sét nguồn điện 3 pha, DEHNshield TT FM, DEHN + SÖHNE
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- Application-optimised and prewired spark-gap-based type 1 and type 2 combined lightning current and surge arrester
- Compact design due to space-saving spark gap technology with a width of only 1 module / pole
- Fulfils the minimum requirements on the lightning current discharge capacity according to IEC 60364-5-53
- Allows compact lightning equipotential bonding including protection of terminal equipment
- Discharge capacity up to 50 kA (10/350 µs)
- Operating state / fault indication by green / red indicator flag in the inspection window
- High follow current extinguishing capacity (Ifi = 25 kArms)
DEHNshield TT 255 FM combined arrester
Four-pole combined arrester for 230/400 V TT und TN (C)-S systems, width: 4 mod.
With remote signalling contact
Type 1 + type 2 SPD according to EN 61643-11
Application-optimised use in compact electrical installations
Spark gap technology with follow current limitation
Fault indication
Max. continuous operating voltage: 255 V a.c.
Voltage protection level: <= 1.5 kV
Lightning impulse current (10/350): 50 kA
Energy-coordinated according to IEC 62305-4 with
arresters of the Red/Line series and terminal equipment
delivery and installation.
Brand: DEHN + SÖHNE
Type: DSH TT 255 FM
Part No.: 941 315
or equivalent.
|
Type |
DSH TT 255 FM |
|
Part No. |
941 315 |
|
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.) (UC) |
255 V (50 / 60 Hz) |
|
Lightning impulse current (10/350 µs) [L1+L2+L3+N-PE] (Itotal) |
50 kA |
|
Specific energy [L1+L2+L3+N-PE] (W/R) |
625.00 kJ/ohms |
|
Lightning impulse current (10/350 µs) [L-N]/[N-PE] (Iimp) |
12.5 / 50 kA |
|
Specific energy [L-N]/[N-PE] (W/R) |
39.06 / 625.00 kJ/ohms |
|
Nominal discharge current (8/20 µs) [L-N]/[N-PE] (In) |
12.5 / 50 kA |
|
Voltage protection level [L-N]/[N-PE] (UP) |
≤ 1.5 / ≤ 1.5 kV |
|
Follow current extinguishing capability [L-N]/[N-PE] (Ifi) |
25 kArms / 100 Arms |
|
Follow current limitation / Selectivity |
no tripping of a 32 A gG fuse up to 25 kArms (prosp.) |
|
Response time (tA) |
≤ 100 ns |
|
Max. mains-side overcurrent protection |
160 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 (TU) |
-40 °C ... +80 °C |
|
Operating state / fault indication |
green / red |
|
Number of ports |
1 |
|
Cross-sectional area (L1, L2, L3, N, PE, 9) (min.) |
1.5 mm2 solid / flexible |
|
Cross-sectional area (L1, L2, L3, N, PE, 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 |
indoor installation |
|
Degree of protection |
IP 20 |
|
Capacity |
4 module(s), DIN 43880 |
|
Approvals |
KEMA, VDE |
|
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) |
2.0 kV |
|
Weight |
448 g |
|
GTIN |
4013364275324 |
|
PU |
1 pc(s) |
|
Part No. |
941 315 |
