Connectivity
Electronics
Automation & Software
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Assembly
Terminal Blocks
Connectors
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Terminal blocks for the direct lettering
Accessories
SNAP IN technology
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Stud technology
W-Series
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Standard
Compact
Mini-modular terminal blocks for enclosure wiring
Feed-through terminal blocks
Modular PE terminal blocks
Fuse terminal blocks
Modular test-disconnect terminal blocks
Pluggable terminal blocks
Modular terminal blocks with electronic components
terminal blocks with spring-loaded cable clamp
terminal blocks with miscellaneous connection
1-tier
2-tier
3-tier
1.5 mm²
2.5 mm²
4 mm²
6 mm²
10 mm²
16 mm²
General ordering data
Version
Feed-through terminal block, Screw connection, dark beige, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.
1781720000
Type
WDU 2.5 PACK
GTIN (EAN)
4032248174683
Qty.
1 pc(s).
Dimensions and weights
Depth
46.5 mm
Depth (inches)
1.831 inch
Height
46.5 mm
Height (inches)
1.831 inch
Width
59 mm
Width (inches)
2.323 inch
Net weight
127.436 g
Temperatures
Storage temperature
-25 °C...55 °C
Ambient temperature
-5 °C…40 °C
Continuous operating temp., min.
-60 °C
Continuous operating temp., max.
130 °C
Environmental Product Compliance
RoHS Compliance Status
Compliant without exemption
REACH SVHC
No SVHC above 0.1 wt%
Material data
Material
Wemid
Colour
dark beige
UL 94 flammability rating
V-0
Rating data IECEx/ATEX
Certificate No. (ATEX)
DEMKO14ATEX1338U
Certificate No. (IECEX)
IECEXULD14.0005U
Max. voltage (ATEX)
690 V
Current (ATEX)
24 A
Wire cross section max. (ATEX)
2.5 mm²
Max. voltage (IECEX)
690 V
Current (IECEX)
24 A
Wire cross section max. (IECEX)
2.5 mm²
Marking EN 60079-7
Ex eb II C Gb
Ex 2014/34/EU label
II 2 G D
System specifications
Version
Screw connection, for plug-in cross-connector, for screwable cross-connection, One end without connector
End cover plate required
No
Number of potentials
1
Number of levels
1
Number of clamping points per level
2
Number of potentials per tier
1
Levels cross-connected internally
No
PE connection
No
Rail
TS 35
N-function
No
PE function
No
PEN function
No
2 clampable conductors (H05V/H07V) with equal cross-section (rated connection)
Cross-section for connected wire, solid, two clampable wires, max.
1.5 mm²
Cross-section for connected wire, solid, two clampable wires, min.
0.5 mm²
Additional technical data
Explosion-tested version
Yes
Type of mounting
Snap-on
Conductors for clamping (additional connection)
Connection type, additional connection
Screw connection
Conductors for clamping (rated connection)
Clampable conductor
Connection specification
Screw connection
Cross-section for conductor connection
Type
solid, H05(07) V-U
min.
0.5 mm²
max.
4 mm²
nominal
2.5 mm²
wire end ferrule
Stripping length
min.
10 mm
max.
10 mm
nominal
10 mm
Tightening torque
Connection specification
Screw connection
Cross-section for conductor connection
Type
stranded, H07V-R
min.
1.5 mm²
max.
4 mm²
nominal
2.5 mm²
wire end ferrule
Stripping length
min.
10 mm
max.
10 mm
nominal
10 mm
Tightening torque
Connection specification
Screw connection
Cross-section for conductor connection
Type
flexible, H05(07) V-K
min.
0.5 mm²
max.
2.5 mm²
nominal
2.5 mm²
wire end ferrule
Stripping length
min.
10 mm
max.
10 mm
nominal
10 mm
Tightening torque
Clamping range, max.
4 mm²
Clamping range, min.
0.05 mm²
Clamping screw
M 2.5
Connection cross-section, stranded, max.
4 mm²
Connection cross-section, stranded, min.
0.5 mm²
Number of connections
2
Stripping length
10 mm
Type of connection
Screw connection
Wire connection cross section AWG, max.
AWG 12
Wire connection cross section AWG, min.
AWG 30
Wire connection cross section, finely stranded, max.
4 mm²
Wire connection cross section, finely stranded, min.
0.5 mm²
Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/1, max.
2.5 mm²
Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/1, min.
0.5 mm²
Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/4, max.
2.5 mm²
Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/4, min.
0.5 mm²
Wire connection cross-section, solid core, max.
4 mm²
Wire connection cross-section, solid core, min.
0.5 mm²
General
Rail
TS 35
Standards
IEC 60947-7-1
Wire connection cross section AWG, max.
AWG 12
Wire connection cross section AWG, min.
AWG 30
Rating data
Rated cross-section
2.5 mm²
Rated voltage
800 V
Rated DC voltage
800 V
Rated current
24 A
Current at maximum wires
24 A
Standards
IEC 60947-7-1
Volume resistance according to IEC 60947-7-x
1.33 mΩ
Power loss in accordance with IEC 60947-7-x
0.77 W
UL rating data
Certificate No. (UR)
E60693
Conductor size Factory wiring max. (UR)
12 AWG
Conductor size Factory wiring min. (UR)
30 AWG
Conductor size Field wiring max. (UR)
12 AWG
Conductor size Field wiring min. (UR)
28 AWG
Current size B (UR)
25 A
Current size C (UR)
25 A
Voltage size B (UR)
600 V
Voltage size C (UR)
600 V
Classifications
ETIM 6.0
EC000897
ETIM 7.0
EC000897
ETIM 8.0
EC000897
ETIM 9.0
EC000897
ETIM 10.0
EC000897
ECLASS 9.0
27-14-11-20
ECLASS 9.1
27-14-11-20
ECLASS 10.0
27-14-11-20
ECLASS 11.0
27-14-11-20
ECLASS 12.0
27-14-11-20
ECLASS 13.0
27-25-01-01
ECLASS 14.0
27-25-01-01
ECLASS 15.0
27-25-01-01
Order No.:
1020000000
Type:
WDU 2.5
Version:
Feed-through terminal block, Screw connection, dark beige, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1020080000
Type:
WDU 2.5 BL
Version:
Feed-through terminal block, Screw connection, blue, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1037710000
Type:
WDU 2.5 BR
Version:
Feed-through terminal block, Screw connection, brown, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1020020000
Type:
WDU 2.5 GE
Version:
Feed-through terminal block, Screw connection, yellow, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1020090000
Type:
WDU 2.5 GN
Version:
Feed-through terminal block, Screw connection, green, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1037720000
Type:
WDU 2.5 GR
Version:
Feed-through terminal block, Screw connection, grey, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1412950000
Type:
WDU 2.5 HV
Version:
Feed-through terminal block, Screw connection, dark beige, 2.5 mm², 24 A, 1000 V, Number of connections: 2
Order No.:
1020060000
Type:
WDU 2.5 OR
Version:
Feed-through terminal block, Screw connection, orange, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1037700000
Type:
WDU 2.5 PA/VI
Version:
Feed-through terminal block, Screw connection, violet, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1020040000
Type:
WDU 2.5 RT
Version:
Feed-through terminal block, Screw connection, red, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1020010000
Type:
WDU 2.5 SW
Version:
Feed-through terminal block, Screw connection, black, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1036800000
Type:
WDU 2.5 WS
Version:
Feed-through terminal block, Screw connection, white, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1024700000
Type:
WDU 2.5/1.5/ZR
Version:
Feed-through terminal block, Screw connection, dark beige, 2.5 mm², 24 A, 800 V, Number of connections: 1
Order No.:
1024780000
Type:
WDU 2.5/1.5/ZR BL
Version:
Feed-through terminal block, Screw connection, blue, 2.5 mm², 24 A, 800 V, Number of connections: 1
Order No.:
1833830000
Type:
WDU 2.5/1.5/ZR RT
Version:
Feed-through terminal block, Screw connection, red, 2.5 mm², 24 A, 800 V, Number of connections: 1
Order No.:
1833840000
Type:
WDU 2.5/1.5/ZR SW
Version:
Feed-through terminal block, Screw connection, black, 2.5 mm², 24 A, 800 V, Number of connections: 1
Order No.:
1020700000
Type:
WDU 2.5/10 BEZ
Version:
Single- and multi-pole terminal strip, Screw connection, dark beige, 2.5 mm², 24 A, 500 V, Number of connections: 2, Number of levels: 1
Order No.:
1020800000
Type:
WDU 2.5/10 BEZ/NE
Version:
Single- and multi-pole terminal strip, Screw connection, dark beige, 2.5 mm², 24 A, 500 V, Number of connections: 2, Number of levels: 1
Approvals
ROHS
Conform
UL File Number Search
UL Website
Certificate No. (UR)
E60693
Version
Feed-through terminal block, Screw connection, dark beige, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.
1781720000
Type
WDU 2.5 PACK
GTIN (EAN)
4032248174683
Qty.
1 pc(s).
Depth
46.5 mm
Depth (inches)
1.831 inch
Height
46.5 mm
Height (inches)
1.831 inch
Width
59 mm
Width (inches)
2.323 inch
Net weight
127.436 g
Storage temperature
-25 °C...55 °C
Ambient temperature
-5 °C…40 °C
Continuous operating temp., min.
-60 °C
Continuous operating temp., max.
130 °C
RoHS Compliance Status
Compliant without exemption
REACH SVHC
No SVHC above 0.1 wt%
Material
Wemid
Colour
dark beige
UL 94 flammability rating
V-0
Certificate No. (ATEX)
DEMKO14ATEX1338U
Certificate No. (IECEX)
IECEXULD14.0005U
Max. voltage (ATEX)
690 V
Current (ATEX)
24 A
Wire cross section max. (ATEX)
2.5 mm²
Max. voltage (IECEX)
690 V
Current (IECEX)
24 A
Wire cross section max. (IECEX)
2.5 mm²
Marking EN 60079-7
Ex eb II C Gb
Ex 2014/34/EU label
II 2 G D
Version
Screw connection, for plug-in cross-connector, for screwable cross-connection, One end without connector
End cover plate required
No
Number of potentials
1
Number of levels
1
Number of clamping points per level
2
Number of potentials per tier
1
Levels cross-connected internally
No
PE connection
No
Rail
TS 35
N-function
No
PE function
No
PEN function
No
Cross-section for connected wire, solid, two clampable wires, max.
1.5 mm²
Cross-section for connected wire, solid, two clampable wires, min.
0.5 mm²
Explosion-tested version
Yes
Type of mounting
Snap-on
Connection type, additional connection
Screw connection
Clampable conductor
Connection specification
Screw connection
Cross-section for conductor connection
Type
solid, H05(07) V-U
min.
0.5 mm²
max.
4 mm²
nominal
2.5 mm²
wire end ferrule
Stripping length
min.
10 mm
max.
10 mm
nominal
10 mm
Tightening torque
Connection specification
Screw connection
Cross-section for conductor connection
Type
stranded, H07V-R
min.
1.5 mm²
max.
4 mm²
nominal
2.5 mm²
wire end ferrule
Stripping length
min.
10 mm
max.
10 mm
nominal
10 mm
Tightening torque
Connection specification
Screw connection
Cross-section for conductor connection
Type
flexible, H05(07) V-K
min.
0.5 mm²
max.
2.5 mm²
nominal
2.5 mm²
wire end ferrule
Stripping length
min.
10 mm
max.
10 mm
nominal
10 mm
Tightening torque
Clamping range, max.
4 mm²
Clamping range, min.
0.05 mm²
Clamping screw
M 2.5
Connection cross-section, stranded, max.
4 mm²
Connection cross-section, stranded, min.
0.5 mm²
Number of connections
2
Stripping length
10 mm
Type of connection
Screw connection
Wire connection cross section AWG, max.
AWG 12
Wire connection cross section AWG, min.
AWG 30
Wire connection cross section, finely stranded, max.
4 mm²
Wire connection cross section, finely stranded, min.
0.5 mm²
Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/1, max.
2.5 mm²
Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/1, min.
0.5 mm²
Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/4, max.
2.5 mm²
Wire connection cross-section, finely stranded with wire-end ferrules DIN 46228/4, min.
0.5 mm²
Wire connection cross-section, solid core, max.
4 mm²
Wire connection cross-section, solid core, min.
0.5 mm²
Rail
TS 35
Standards
IEC 60947-7-1
Wire connection cross section AWG, max.
AWG 12
Wire connection cross section AWG, min.
AWG 30
Rated cross-section
2.5 mm²
Rated voltage
800 V
Rated DC voltage
800 V
Rated current
24 A
Current at maximum wires
24 A
Standards
IEC 60947-7-1
Volume resistance according to IEC 60947-7-x
1.33 mΩ
Power loss in accordance with IEC 60947-7-x
0.77 W
Certificate No. (UR)
E60693
Conductor size Factory wiring max. (UR)
12 AWG
Conductor size Factory wiring min. (UR)
30 AWG
Conductor size Field wiring max. (UR)
12 AWG
Conductor size Field wiring min. (UR)
28 AWG
Current size B (UR)
25 A
Current size C (UR)
25 A
Voltage size B (UR)
600 V
Voltage size C (UR)
600 V
ETIM 6.0
EC000897
ETIM 7.0
EC000897
ETIM 8.0
EC000897
ETIM 9.0
EC000897
ETIM 10.0
EC000897
ECLASS 9.0
27-14-11-20
ECLASS 9.1
27-14-11-20
ECLASS 10.0
27-14-11-20
ECLASS 11.0
27-14-11-20
ECLASS 12.0
27-14-11-20
ECLASS 13.0
27-25-01-01
ECLASS 14.0
27-25-01-01
ECLASS 15.0
27-25-01-01
Order No.:
1020000000
Type:
WDU 2.5
Version:
Feed-through terminal block, Screw connection, dark beige, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1020080000
Type:
WDU 2.5 BL
Version:
Feed-through terminal block, Screw connection, blue, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1037710000
Type:
WDU 2.5 BR
Version:
Feed-through terminal block, Screw connection, brown, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1020020000
Type:
WDU 2.5 GE
Version:
Feed-through terminal block, Screw connection, yellow, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1020090000
Type:
WDU 2.5 GN
Version:
Feed-through terminal block, Screw connection, green, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1037720000
Type:
WDU 2.5 GR
Version:
Feed-through terminal block, Screw connection, grey, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1412950000
Type:
WDU 2.5 HV
Version:
Feed-through terminal block, Screw connection, dark beige, 2.5 mm², 24 A, 1000 V, Number of connections: 2
Order No.:
1020060000
Type:
WDU 2.5 OR
Version:
Feed-through terminal block, Screw connection, orange, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1037700000
Type:
WDU 2.5 PA/VI
Version:
Feed-through terminal block, Screw connection, violet, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1020040000
Type:
WDU 2.5 RT
Version:
Feed-through terminal block, Screw connection, red, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1020010000
Type:
WDU 2.5 SW
Version:
Feed-through terminal block, Screw connection, black, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1036800000
Type:
WDU 2.5 WS
Version:
Feed-through terminal block, Screw connection, white, 2.5 mm², 24 A, 800 V, Number of connections: 2
Order No.:
1024700000
Type:
WDU 2.5/1.5/ZR
Version:
Feed-through terminal block, Screw connection, dark beige, 2.5 mm², 24 A, 800 V, Number of connections: 1
Order No.:
1024780000
Type:
WDU 2.5/1.5/ZR BL
Version:
Feed-through terminal block, Screw connection, blue, 2.5 mm², 24 A, 800 V, Number of connections: 1
Order No.:
1833830000
Type:
WDU 2.5/1.5/ZR RT
Version:
Feed-through terminal block, Screw connection, red, 2.5 mm², 24 A, 800 V, Number of connections: 1
Order No.:
1833840000
Type:
WDU 2.5/1.5/ZR SW
Version:
Feed-through terminal block, Screw connection, black, 2.5 mm², 24 A, 800 V, Number of connections: 1
Order No.:
1020700000
Type:
WDU 2.5/10 BEZ
Version:
Single- and multi-pole terminal strip, Screw connection, dark beige, 2.5 mm², 24 A, 500 V, Number of connections: 2, Number of levels: 1
Order No.:
1020800000
Type:
WDU 2.5/10 BEZ/NE
Version:
Single- and multi-pole terminal strip, Screw connection, dark beige, 2.5 mm², 24 A, 500 V, Number of connections: 2, Number of levels: 1
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