DEHNconnect SD2

Terminal block with integrated surge protection
  • For protecting measuring and control circuits and bus systems
  • Maximum impulse current carrying capability Imax up to 20 kA (8/20 µs)
  • Low voltage protection level, capable of protecting terminal equipment
Modular disconnection function
  • Disconnection module for disconnecting the signal circuit for maintenance work
  • Module fixing and mechanical ejector
  • Module in "parked" position after disconnection
Space-saving and function-optimised design
  • Terminal block with integrated surge protection (width of 6 mm)
  • Fast conductor connection without tools thanks to direct plug-in technology
  • Can be used with jumper bar (accessory)

Details

Terminals with direct-plug-in technology – fast and vibration-proof connection.
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Slots for jumper bars – for quickly connecting signal circuits.
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Marking of the protected side – minimises wiring errors.
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Disconnection module with ejector – for disconnecting the signal circuits.
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DCO SD2 ME

Energy-coordinated surge arrester with disconnection function for protecting two single lines sharing a common reference potential as well as unbalanced interfaces.

3 Products

Part No. 917920 DCO SD2 ME 12

GTIN 4013364150560, Customs tariff No.: 85363010, Gross weight: 42.52 g, PU: 1.00 pc(s)

Predecessor

Images

Additional information

Coordinated DCO SD2 ME 12 surge arrester with disconnection function
DEHNconnect SD2 terminal block with integrated surge protection
SPD class: type 2 / P1
Tested to EN 61643-21 and
energy-coordinated according to IEC 61643-22
For protecting two single cores or one pair
Two-pole terminal with direct plug-in technology
Width: 6 mm
Signal interruption via plug-in module
Max. continuous operating voltage (d.c.): 14 V
Nominal current at 80 °C: 0.5 A
D1 Lightning impulse current (10/350 µs) per line: 1 kA
C2 Total nominal discharge current (8/20 µs): 10 kA

Brand: DEHN
Type: DCO SD2 ME 12
Part No.: 917920
or equivalent.

Certificates

 

Technical data

SPD class Q
Max. continuous operating voltage (d.c.) (UC ) 14 V
Nominal current at 80 °C (IL ) 0.5 A
D1 Lightning impulse current (10/350 µs) per line (Iimp ) 1 kA
C2 Total nominal discharge current (8/20 µs) (In ) 10 kA
Cut-off frequency line-PG (fG ) 2.5 MHz
Approvals UL, CSA, SIL, EAC, ATEX, IECEx

Product 917920 was added to Notepad.

Product 917920 was added to the cart.

Part No. 917921 DCO SD2 ME 24

GTIN 4013364150577, Customs tariff No.: 85363010, Gross weight: 42.38 g, PU: 1.00 pc(s)

Predecessor

Images

Additional information

Coordinated DCO SD2 ME 24 surge arrester with disconnection function
DEHNconnect SD2 terminal block with integrated surge protection
SPD class: type 2 / P1
Tested to EN 61643-21 and
energy-coordinated according to IEC 61643-22
for protecting two single cores or one pair
Two-pole terminal with direct plug-in technology
Width: 6 mm
Signal interruption via plug-in module
Max. continuous operating voltage (d.c.): 33 V
Nominal current at 80 °C: 0.5 A
D1 Lightning impulse current (10/350 µs) per line: 1 kA
C2 Total nominal discharge current (8/20 µs): 10 kA

Brand: DEHN
Type: DCO SD2 ME 24
Part No.: 917921
or equivalent.

Certificates

 

Technical data

SPD class Q
Max. continuous operating voltage (d.c.) (UC ) 33 V
Nominal current at 80 °C (IL ) 0.5 A
D1 Lightning impulse current (10/350 µs) per line (Iimp ) 1 kA
C2 Total nominal discharge current (8/20 µs) (In ) 10 kA
Cut-off frequency line-PG (fG ) 6 MHz
Approvals UL, CSA, SIL, EAC, ATEX, IECEx

Product 917921 was added to Notepad.

Product 917921 was added to the cart.

Part No. 917922 DCO SD2 ME 48

GTIN 4013364150584, Customs tariff No.: 85363010, Gross weight: 42.29 g, PU: 1.00 pc(s)

Predecessor

Images

Additional information

Coordinated DCO SD2 ME 48 surge arrester with disconnection function
DEHNconnect SD2 terminal block with integrated surge protection
SPD class: type 2 / P1
Tested to EN 61643-21 and
energy-coordinated according to IEC 61643-22
For protecting two single cores or one pair
Two-pole terminal with direct plug-in technology
Width: 6 mm
Signal interruption via plug-in module
Max. continuous operating voltage (d.c.): 55 V
Nominal current at 80 °C: 0.5 A
D1 Lightning impulse current (10/350 µs) per line: 1 kA
C2 Total nominal discharge current (8/20 µs): 10 kA

Brand: DEHN
Type: DCO SD2 ME 48
Part No.: 917922
or equivalent.

Certificates

 

Technical data

SPD class Q
Max. continuous operating voltage (d.c.) (UC ) 55 V
Nominal current at 80 °C (IL ) 0.5 A
D1 Lightning impulse current (10/350 µs) per line (Iimp ) 1 kA
C2 Total nominal discharge current (8/20 µs) (In ) 10 kA
Cut-off frequency line-PG (fG ) 7.5 MHz
Approvals UL, CSA, SIL, EAC, ATEX, IECEx

Product 917922 was added to Notepad.

Product 917922 was added to the cart.


DCO SD2 MD

Energy-coordinated surge arrester with disconnection function for protecting one unearthed pair as well as balanced interfaces.

3 Products

Part No. 917940 DCO SD2 MD 12

GTIN 4013364150591, Customs tariff No.: 85363010, Gross weight: 42.42 g, PU: 1.00 pc(s)

Predecessor

Images

Additional information

Coordinated DCO SD2 MD 12 surge arrester with disconnection function
DEHNconnect SD2 terminal block with integrated surge protection
SPD class: type 2 / P1
Tested to EN 61643-21 and
energy-coordinated according to IEC 61643-22
For protecting galvanically isolated balanced interfaces
Two-pole terminal with direct plug-in technology
Width: 6 mm
Signal interruption via plug-in module
Max. continuous operating voltage (d.c.): 14 V
Nominal current at 80 °C: 0.5 A
D1 Lightning impulse current (10/350 µs) per line: 1 kA
C2 Total nominal discharge current (8/20 µs): 10 kA

Brand: DEHN
Type: DCO SD2 MD 12
Part No.: 917940
or equivalent.

Certificates

 

Technical data

SPD class Q
Max. continuous operating voltage (d.c.) (UC ) 14 V
Nominal current at 80 °C (IL ) 0.5 A
D1 Lightning impulse current (10/350 µs) per line (Iimp ) 1 kA
C2 Total nominal discharge current (8/20 µs) (In ) 10 kA
Cut-off frequency line-PG (fG ) 2.5 MHz
Approvals UL, CSA, SIL, EAC, ATEX, IECEx

Product 917940 was added to Notepad.

Product 917940 was added to the cart.

Part No. 917941 DCO SD2 MD 24

GTIN 4013364150607, Customs tariff No.: 85363010, Gross weight: 42.44 g, PU: 1.00 pc(s)

Predecessor

Images

Additional information

Coordinated DCO SD2 MD 24 surge arrester with disconnection function
DEHNconnect SD2 terminal block with integrated surge protection
SPD class: type 2 / P1
Tested to EN 61643-21 and
energy-coordinated according to IEC 61643-22
For protecting galvanically isolated balanced interfaces
Two-pole terminal with direct plug-in technology
Width: 6 mm
Signal interruption via plug-in module
Max. continuous operating voltage (d.c.): 33 V
Nominal current at 80 °C: 0.5 A
D1 Lightning impulse current (10/350 µs) per line: 1 kA
C2 Total nominal discharge current (8/20 µs): 10 kA

Brand: DEHN
Type: DCO SD2 MD 24
Part No.: 917941
or equivalent.

Certificates

 

Technical data

SPD class Q
Max. continuous operating voltage (d.c.) (UC ) 33 V
Nominal current at 80 °C (IL ) 0.5 A
D1 Lightning impulse current (10/350 µs) per line (Iimp ) 1 kA
C2 Total nominal discharge current (8/20 µs) (In ) 10 kA
Cut-off frequency line-PG (fG ) 6 MHz
Approvals UL, CSA, SIL, EAC, ATEX, IECEx

Product 917941 was added to Notepad.

Product 917941 was added to the cart.

Part No. 917942 DCO SD2 MD 48

GTIN 4013364150614, Customs tariff No.: 85363010, Gross weight: 42.35 g, PU: 1.00 pc(s)

Predecessor

Images

Additional information

Coordinated DCO SD2 MD 48 surge arrester with disconnection function
DEHNconnect SD2 terminal block with integrated surge protection
SPD class: type 2 / P1
Tested to EN 61643-21 and
energy-coordinated according to IEC 61643-22
For protecting galvanically isolated balanced interfaces
Two-pole terminal with direct plug-in technology
Width: 6 mm
Signal interruption via plug-in module
Max. continuous operating voltage (d.c.): 55 V
Nominal current at 80 °C: 0.5 A
D1 Lightning impulse current (10/350 µs) per line: 1 kA
C2 Total nominal discharge current (8/20 µs): 10 kA

Brand: DEHN
Type: DCO SD2 MD 48
Part No.: 917942
or equivalent.

Certificates

 

Technical data

SPD class Q
Max. continuous operating voltage (d.c.) (UC ) 55 V
Nominal current at 80 °C (IL ) 0.5 A
D1 Lightning impulse current (10/350 µs) per line (Iimp ) 1 kA
C2 Total nominal discharge current (8/20 µs) (In ) 10 kA
Cut-off frequency line-PG (fG ) 8 MHz
Approvals UL, CSA, SIL, EAC, ATEX, IECEx

Product 917942 was added to Notepad.

Product 917942 was added to the cart.


DCO SD2 MD HF

Energy-coordinated surge arrester with disconnection function for protecting balanced interfaces with extra-low voltages. Also suitable for high transmission rates due to a diode matrix with minimised capacitance. It is advisable to use SAK shield connection systems for shielded bus lines.

1 Product

Part No. 917970 DCO SD2 MD HF 5

GTIN 4013364150621, Customs tariff No.: 85363010, Gross weight: 42.35 g, PU: 1.00 pc(s)

Predecessor

Images

Additional information

Coordinated DCO SD2 MD HF 5 surge arrester with disconnection function
DEHNconnect SD2 terminal block with integrated surge protection
SPD class: type 2 / P1
Tested to EN 61643-21 and
energy-coordinated according to IEC 61643-22
For protecting bus systems and interfaces with
extra low voltage, suitable for high transmission rates
Two-pole terminal with direct plug-in technology
Width: 6 mm
Signal interruption via plug-in module
Max. continuous operating voltage (d.c.): 8.5 V
Nominal current at 80 °C: 0.5 A
D1 Lightning impulse current (10/350 µs) per line: 1 kA
C2 Total nominal discharge current (8/20 µs): 10 kA

Brand: DEHN
Type: DCO SD2 MD HF 5
Part No.: 917970
or equivalent.

Certificates

 

Technical data

SPD class Q
Max. continuous operating voltage (d.c.) (UC ) 8.5 V
Nominal current at 80 °C (IL ) 0.5 A
D1 Lightning impulse current (10/350 µs) per line (Iimp ) 1 kA
C2 Total nominal discharge current (8/20 µs) (In ) 10 kA
Cut-off frequency line-line (fG ) 100 MHz
Approvals UL, CSA, SIL, EAC, ATEX, IECEx

Product 917970 was added to Notepad.

Product 917970 was added to the cart.


DCO SD2 E

Fine limiting surge protective device with disconnection function for two single lines sharing a common reference potential and unbalanced interfaces.

3 Products

Part No. 917987 DCO SD2 E 12

GTIN 4013364150645, Customs tariff No.: 85363010, Gross weight: 50.31 g, PU: 1.00 pc(s)

Predecessor

Images

Additional information

DCO SD2 E 12 surge arrester with disconnection function
DEHNconnect SD2 terminal block with integrated surge protection
SPD class: type 3 / P1
Tested to EN 61643-21 and
energy-coordinated according to IEC 61643-22
For protecting bus systems and interfaces with
extra low voltage
Two-pole terminal with direct plug-in technology
Width: 6 mm
Signal interruption via plug-in module
Max. continuous operating voltage (d.c.): 13 V
Nominal current at 60 °C: 10 A

Brand: DEHN
Type: DCO SD2 E 12
Part No.: 917987
or equivalent.

Certificates

 

Technical data

SPD class W
Max. continuous operating voltage (d.c.) (UC ) 13 V
Nominal current at 60 °C (IL ) 10 A
C1 Total nominal discharge current (8/20 µs) (In ) 0.8 kA
Cut-off frequency line-PG (fG ) 2.3 MHz
Approvals UL, CSA, SIL, EAC

Product 917987 was added to Notepad.

Product 917987 was added to the cart.

Part No. 917988 DCO SD2 E 24

GTIN 4013364150652, Customs tariff No.: 85363010, Gross weight: 45.43 g, PU: 1.00 pc(s)

Predecessor

Images

Additional information

DCO SD2 E 24 surge arrester with disconnection function
DEHNconnect SD2 terminal block with integrated surge protection
SPD class: type 3 / P1
Tested to EN 61643-21 and
energy-coordinated according to IEC 61643-22
For protecting bus systems and interfaces with
extra low voltage
Two-pole terminal with direct plug-in technology
Width: 6 mm
Signal interruption via plug-in module
Max. continuous operating voltage (d.c.): 28 V
Nominal current at 60 °C: 10 A

Brand: DEHN
Type: DCO SD2 E 24
Part No.: 917988
or equivalent.

Certificates

 

Technical data

SPD class W
Max. continuous operating voltage (d.c.) (UC ) 28 V
Nominal current at 60 °C (IL ) 10 A
C1 Total nominal discharge current (8/20 µs) (In ) 0.6 kA
Cut-off frequency line-PG (fG ) 5.5 MHz
Approvals UL, CSA, SIL, EAC

Product 917988 was added to Notepad.

Product 917988 was added to the cart.

Part No. 917989 DCO SD2 E 48

GTIN 4013364150669, Customs tariff No.: 85363010, Gross weight: 50.11 g, PU: 1.00 pc(s)

Predecessor

Images

Additional information

DCO SD2 E 48 surge protective device with disconnection function
DEHNconnect SD2 terminal block with integrated surge protection
SPD class: type 4 / P1
Tested to EN 61643-21 and
energy-coordinated according to IEC 61643-22
For protecting bus systems and interfaces with
extra low voltage
Two-pole terminal with direct plug-in technology
Width: 6 mm
Signal interruption via plug-in module
Max. continuous operating voltage (d.c.): 58 V
Nominal current at 60 °C: 10 A

Brand: DEHN
Type: DCO SD2 E 48
Part No.: 917989
or equivalent.

Certificates

 

Technical data

SPD class [
Max. continuous operating voltage (d.c.) (UC ) 58 V
Nominal current at 60 °C (IL ) 10 A
C1 Total nominal discharge current (8/20 µs) (In ) 0.3 kA
Cut-off frequency line-PG (fG ) 8.7 MHz
Approvals UL, CSA, SIL, EAC

Product 917989 was added to Notepad.

Product 917989 was added to the cart.


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