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

New product

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

RelatedProducts