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 Data sheet...
DK-SERIES
DK 4/35 U 470V 20KA
Weidmüller Interface GmbH & Co. KG
Klingenbergstraße 16
D-32758 Detmold
Germany
Fon: +49 5231 14-0
Fax: +49 5231 14-292083
www.weidmueller.com
Surge protection with individual components
With gas-discharge tubes in terminal design
Gas-discharge tubes / sparkover gaps (GDT) are designed
with a terminal shape. They are approved for a maximum
DC voltage, which is printed on the component. Any
voltage greater than the amount specified is safely
discharged within about 10-100µs. Gas arresters can be
used for high-power applications.
General ordering data
Order No.
Type
Version
GTIN (EAN)
Qty.
9400540000
DK 4/35 U 470V 20KA
Surge protection for instrumentation and control,
Rated voltage: 350 V
4008190156480
25 pc(s).
Creation date September 11, 2012 1:22:53 PM CEST
Catalogue status 23.07.2012 / We reserve the right to make technical changes.
1
Data sheet...
DK-SERIES
DK 4/35 U 470V 20KA
Weidmüller Interface GmbH & Co. KG
Klingenbergstraße 16
D-32758 Detmold
Germany
Fon: +49 5231 14-0
Fax: +49 5231 14-292083
www.weidmueller.com
Technical data
Dimensions
Length
Height
50 mm
56 mm
Width
Net weight
12 mm
20.8 g
-25 °C...+60 °C
Storage temperature
-25 °C...+85 °C
Segment
Instrumentation and
Control
Surge voltage category
Yes
AC/DC
4 mm²
350 V
600 V
≤ 1 µs
Capacitance
Rated voltage (DC), max.
Rated voltage
Discharge current, max. (8/20 µs)
Fusing
Clamping range, rated connection
Temperatures
Operating temperature
General data
Design
UL 94 flammability rating
Terminal
V-2
Insulation coordination acc. to EN 50178
Pollution severity
2
III
Interference voltage
Protection level on output side Wire-PE
1kV/µs, typically
600 V
Protective elements
Gas discharge tube
Technical data
AC/DC/UC
Cross-section
Rated voltage (AC)
Rated voltage (DC)
Sparkover time / Drop-out time
2 pF
280 V
350 V
20 kA
1.6 A
Connection data
Wire connection cross section, finely
stranded, max.
4 mm²
Clamping range, rated connection, min. 0.5 mm²
Tightening torque, min.
0.5 Nm
4 mm²
Clamping range, rated connection, max. 4 mm²
Tightening torque, max.
1 Nm
ETIM 3.0
eClass 4.1
eClass 6.0
EX protection data
Certificate No. (ATEX)
Ratings IECEx/ATEX
Certificate No. (ATEX)
Classifications
ETIM 2.0
UNSPSC
eClass 5.1
eClass 7.0
EC000943
30-21-18-11
27-14-11-27
27-14-11-27
EC000943
27-14-11-27
27-14-11-27
Creation date September 11, 2012 1:22:53 PM CEST
Catalogue status 23.07.2012 / We reserve the right to make technical changes.
2
Data sheet...
DK-SERIES
DK 4/35 U 470V 20KA
Weidmüller Interface GmbH & Co. KG
Klingenbergstraße 16
D-32758 Detmold
Germany
Fon: +49 5231 14-0
Fax: +49 5231 14-292083
www.weidmueller.com
Technical data
Approvals
Approvals
Downloads
Declaration of Conformity
K017_08_09.pdf
Creation date September 11, 2012 1:22:53 PM CEST
Catalogue status 23.07.2012 / We reserve the right to make technical changes.
3
Data sheet...
DK-SERIES
DK 4/35 U 470V 20KA
Drawings
Weidmüller Interface GmbH & Co. KG
Klingenbergstraße 16
D-32758 Detmold
Germany
Fon: +49 5231 14-0
Fax: +49 5231 14-292083
www.weidmueller.com
Electric symbol
Creation date September 11, 2012 1:22:53 PM CEST
Catalogue status 23.07.2012 / We reserve the right to make technical changes.
4
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