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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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

 

Download tài liệu DSH TT 255 FM

Download tài liệu hướng dẫn lắp đặt DSH TT 255 FM

Download tài liệu thiết bị chống sét DEHN

 

  • 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)
 
Application-optimised and prewired combined lightning current and surge arrester for TT and TN-S systems with a nominal voltage of 230 / 400 V (3+1 configuration); with floating signalling contact.
 
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 mmsolid / 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

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