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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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Disconnection module with ejector – for disconnecting the signal circuits.
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Marking of the protected side – minimises wiring errors.
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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. (EU): 85363010, Gross weight: 42.38 g, PU: 1.00 Stk

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, ATEX, IECEx
*) For more detailed information, please visit www.dehn-international.com.

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. (EU): 85363010, Gross weight: 42.38 g, PU: 1.00 Stk

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, ATEX, IECEx
*) For more detailed information, please visit www.dehn-international.com.

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. (EU): 85363010, Gross weight: 42.29 g, PU: 1.00 Stk

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, ATEX, IECEx
*) For more detailed information, please visit www.dehn-international.com.

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. (EU): 85363010, Gross weight: 42.42 g, PU: 1.00 Stk

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, ATEX, IECEx
*) For more detailed information, please visit www.dehn-international.com.

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. (EU): 85363010, Gross weight: 42.44 g, PU: 1.00 Stk

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, ATEX, IECEx
*) For more detailed information, please visit www.dehn-international.com.

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. (EU): 85363010, Gross weight: 42.35 g, PU: 1.00 Stk

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, ATEX, IECEx
*) For more detailed information, please visit www.dehn-international.com.

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. (EU): 85363010, Gross weight: 42.35 g, PU: 1.00 Stk

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, ATEX, IECEx
*) For more detailed information, please visit www.dehn-international.com.

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. (EU): 85363010, Gross weight: 50.31 g, PU: 1.00 Stk

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
*) For more detailed information, please visit www.dehn-international.com.

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. (EU): 85363010, Gross weight: 45.43 g, PU: 1.00 Stk

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
*) For more detailed information, please visit www.dehn-international.com.

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. (EU): 85363010, Gross weight: 50.11 g, PU: 1.00 Stk

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
*) For more detailed information, please visit www.dehn-international.com.

Product 917989 was added to Notepad.

Product 917989 was added to the cart.


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