DEHNtrack

Surge Arrester for d.c. Systems > 1 kV

For protecting d.c. systems and rectifier stations against surges. The arresters are especially suited for installation in rolling stock, trolley buses and overhead lines.
  • Metal oxide arrester for d.c. systems up to 4.8 kV
  • Nominal discharge current of 10 kA (8/20 µs)
  • High current withstand capability of 100 kA (4/10 µs)
  • For indoor and outdoor use
  • Maximum protection under conditions of pollution
  • Maximum protection against mechanical vibrations
  • Break resistance in case of overload
  • Freely selectable mounting position

Type

DEHNtrack .. 10 3: For indoor and outdoor use for a rated voltage (d.c.) of 1.2 /.2.4 / 3.6 and 4.8 kV

Details

For protecting d.c. systems and rectifier stations against surges. The arresters are especially suited for installation in rolling stock, trolley buses and overhead lines.

The active part of DEHNtrack d.c. arresters consists of high-quality and thermally stable ZnO varistor discs. The continuous U/I characteristic, quick sparkover performance and low residual voltage of ZnO varistor discs make them ideal components for d.c. arresters.

The coating of the varistor block is decisive for the design of arresters for d.c. systems. High-temperature vulcanised silicone has been used for permanent protection from environmental influences such as air humidity or deposits of pollution. Moreover, repeated climatic and mechanical stress has also been considered.
The rated voltage is selected according to the maximum operating voltage of the d.c. system. DEHNtrack d.c. arresters are available with the following rated voltages:

Ur = 1.2 kV --> DTR 1.2 10 3
Ur = 2.4 kV --> DTR 2.4 10 3
Ur = 3.6 kV --> DTR 3.6 10 3
Ur = 4.8 kV --> DTR 4.8 10 3

Numerous clamp connections and fixing elements are available as accessory.

Models

Surge Arrester for d.c. Voltage Systems > 1 kV

Surge Arrester for d.c. Voltage Systems > 1 kV

Dimension drawing DTR ...

Specifications

Type
Part No.
Nominal discharge current (8/20 µs) (In)
High current impulse (4/10 µs)
Long duration current impulse
Line discharge class
Rated voltage (d.c.) (Ur)
Continuous operating voltage (d.c.) (MCOV) (UC)
Residual voltage at 10 kA (1/2 µs) (ûres)
Residual voltage at 5 kA (8/20 µs) (ûres)
Residual voltage at 10 kA (8/20 µs) (ûres)
Residual voltage at 20 kA (8/20 µs) (ûres)
Residual voltage at 250 A (30/70 µs) (ûres)
Residual voltage at 500 A (30/70 µs) (ûres)
Residual voltage at 1000 A (30/70 µs) (ûres)
Insulation of arrester housing / nominal power frequency withstand voltage (wet) (UPFWL)
Insulation of arrester housing / nominal switching withstand voltage (wet) (USIWL)
Height (H)
Weight (M)
Creepage distance (+/- 5%)
Mechanical shock resistance acc. to IEC 68 Part 2-29
Vibration resistance acc. to IEC 68 Part 2-6
Ambient temperature (TA)
Housing material
Colour
Fittings
Connections
Weight
GTIN
PU
Part No.
  • DTR 1.2 10 3
  • 990 301
  • 10 kA
  • 100 kA
  • 1000 A / 2000 µs
  • 4 (10 kJ/kVUr)
  • 1.2 kV
  • 1.0 kV
  • 2.9 kV
  • 2.5 kV
  • 2.6 kV
  • 2.9 kV
  • 2.1 kV
  • 2,2 kV
  • 2.3 kV
  • ≥ 40 kV
  • ≥ 50 kV
  • 173 mm
  • 3 kg
  • 230 mm
  • 15 g
  • 3 g (10-500 Hz)
  • -40 °C ... +55 °C
  • silicone
  • grey, RAL 7040
  • Al cast alloy
  • stainless steel terminals and screws
  • 3 kg
  • 4013364103085
  • 1 pc(s)
  • 990 301
  • Specifications (PDF)
  • More
    • Further Pictures
      Dimension drawing DTR 1.2 10 3
      open PDF
      Further Information
      Product Specifications (Text)

      Back

      Surge arrester DTR 1.2 10 3
Surge arrester
for protection of dc networks and
rectifiers against atmospheric
and switching surges
according to IEC 99-4 / EN 60099-4
High temperature vulcanised (HTV), hydrophobic
silicon enclosure
Pregreg sheet
High bending resistance
Unbreakable at overloads
Rated voltage:			Ur = 1.2 kV
Continuous operating voltage:	Uc = 1 kV
Nominal discharge current:	In = 10 kA (8/20)
Line discharge class:		3
Ambient temperature:		(-55...+55) °C
Creepage distance:		230 mm
HTV-silicon enclosure::	h = 173 mm;
RAL 7040  

      delivery and installation.

      Brand: DEHN
      Type: DTR 1.2 10 3
      Part No.: 990 301

      or equivalent.
      Installation Instructions
  • DTR 2.4 10 3
  • 990 302
  • 10 kA
  • 100 kA
  • 1000 A / 2000 µs
  • 4 (10 kJ/kVUr)
  • 2.4 kV
  • 2.0 kV
  • 5.5 kV
  • 4.8 kV
  • 5.0 kV
  • 5.5 kV
  • 4.0 kV
  • 4.1 kV
  • 4.2 kV
  • ≥ 40 kV
  • ≥ 50 kV
  • 180 mm
  • 3 kg
  • 237 mm
  • 15 g
  • 3 g (10-500 Hz)
  • -40 °C ... +55 °C
  • silicone
  • grey, RAL 7040
  • Al cast alloy
  • stainless steel terminals and screws
  • 5,38 kg
  • 4013364103092
  • 1 pc(s)
  • 990 302
  • Specifications (PDF)
  • More
    • Further Pictures
      Dimension drawing DTR 2.4 10 3
      open PDF
      Further Information
      Product Specifications (Text)

      Back

      Surge arrester DTR 2.4 10 3
Surge arrester
for protection of d.c. networks and
rectifiers against atmospheric
and switching surges
according to IEC 99-4 / EN 60099-4
High temperature vulcanised (HTV), hydrophobic
silicon enclosure
Pregreg sheet
High bending resistance
Unbreakable at overloads
Rated voltage:			Ur = 2.4 kV
Continuous operating voltage:	Uc = 2.0 kV
Nominal discharge current:	In = 10 kA (8/20)
Line discharge class:		3
Ambient temperature:		(-55...+55) °C
Creepage distance:		237 mm
HTV-silicon enclosure::	h = 180 mm;
RAL 7040  

      delivery and installation.

      Brand: DEHN
      Type: DTR 2.4 10 3
      Part No.: 990 302

      or equivalent.
      Installation Instructions
  • DTR 3.6 10 3
  • 990 303
  • 10 kA
  • 100 kA
  • 1000 A / 2000 µs
  • 4 (10 kJ/kVUr)
  • 3.6 kV
  • 3.0 kV
  • 8.3 kV
  • 7.3 kV
  • 7.6 kV
  • 8.3 kV
  • 6.1 kV
  • 6.2 kV
  • 6.4 kV
  • ≥ 40 kV
  • ≥ 50 kV
  • 187 mm
  • 3 kg
  • 244 mm
  • 15 g
  • 3 g (10-500 Hz)
  • -40 °C ... +55 °C
  • silicone
  • grey, RAL 7040
  • Al cast alloy
  • stainless steel terminals and screws
  • 3 kg
  • 4013364103108
  • 1 pc(s)
  • 990 303
  • Specifications (PDF)
  • More
    • Further Pictures
      Dimension drawing DTR 3.6 10 3
      open PDF
      Further Information
      Product Specifications (Text)

      Back

      Surge arrester DTR 3.6 10 3
Surge arrester
for protection of dc networks and
rectifiers against atmospheric 
and switching surges
according to IEC 99-4 / EN 60099-4
High temperature vulcanised (HTV), hydrophobic
silicon enclosure
Pregreg sheet
High bending resistance
Unbreakable at overloads
Rated voltage:			Ur = 3.6 kV
Continuous operating voltage:	Uc = 3.0 kV
Nominal discharge current:	In = 10 kA (8/20)
Line discharge class:		3
Ambient temperature:		(-55...+55) °C
Creepage distance:		244 mm
HTV-silicon enclosure::	h = 187 mm;
RAL 7040  
Shock resistance:		15 g 
according to DIN IEC 68 Part 2.29
Vibration resistance:		3 g (10-500 Hz)
according to DIN IEC 68 Part 2-6
Supply and mount

      delivery and installation.

      Brand: DEHN
      Type: DTR 3.6 10 3
      Part No.: 990 303

      or equivalent.
      Installation Instructions
  • DTR 4.8 10 3
  • 990 304
  • 10 kA
  • 100 kA
  • 1000 A / 2000 µs
  • 4 (10 kJ/kVUr)
  • 4.8 kV
  • 4.0 kV
  • 10.9 kV
  • 9.5 kV
  • 10.0 kV
  • 10.9 kV
  • 7.9 kV
  • 8.1 kV
  • 8.3 kV
  • ≥ 40 kV
  • ≥ 50 kV
  • 193 mm
  • 3 kg
  • 250 mm
  • 15 g
  • 3 g (10-500 Hz)
  • -40 °C ... +55 °C
  • silicone
  • grey, RAL 7040
  • Al cast alloy
  • stainless steel terminals and screws
  • 3 kg
  • 4013364103115
  • 1 pc(s)
  • 990 304
  • Specifications (PDF)
  • More
    • Further Pictures
      Dimension drawing DTR 4.8 10 3
      open PDF
      Further Information
      Product Specifications (Text)

      Back

      Surge arrester DTR 4.8 10 3
Surge arrester
for protection of dc systems and 
rectifiers against atmospheric
and switching surges
according to IEC 99-4 / EN 60099-4
High temperature vulcanised (HTV), hydrophobic
silicon enclosure
Pregreg sheet
High bending resistance
Unbreakable at overloads
Rated voltage:			Ur = 4.8 kV
Continuous operating voltage:	Uc = 4.0 kV
Nominal discharge current:	In = 10 kA (8/20)
Line discharge class:		3
Ambient temperature:		(-55...+55) °C
Creepage distance:		250 mm
HTV-silicon enclosure::	h = 193 mm;
RAL 7040

      delivery and installation.

      Brand: DEHN
      Type: DTR 4.8 10 3
      Part No.: 990 304

      or equivalent.
      Installation Instructions