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W-Series
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Standard
Compact
Mini-modular terminal blocks for enclosure wiring
Feed-through terminal blocks
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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
1.5 mm²
2.5 mm²
General ordering data
Version
W-Series, Feed-through terminal, Rated cross-section: 1 mm², Flat-blade connection
Order No.
1021900000
Type
WDU 2.5 FF 2X2.8
GTIN (EAN)
4008190138516
Qty.
100 pc(s).
Dimensions and weights
Depth
46.25 mm
Depth (inches)
1.821 inch
Depth including DIN rail
47 mm
Height
60 mm
Height (inches)
2.362 inch
Width
5.1 mm
Width (inches)
0.201 inch
Net weight
6.93 g
Temperatures
Storage temperature
-25 °C...55 °C
Continuous operating temp., min.
-50 °C
Continuous operating temp., max.
120 °C
Material data
Material
Wemid
Colour
dark beige
UL 94 flammability rating
V-0
System specifications
Version
With cable lug connection F2.8, Both sides, pluggable, One end without connector
End cover plate required
Yes
Number of potentials
1
Number of levels
1
Number of clamping points per level
0
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
Additional technical data
Explosion-tested version
No
Number of similar terminals
1
Open sides
right
Type of mounting
Snap-on
CSA rating data
Certificate No. (CSA)
12400-135
Current size C (CSA)
10 A
Voltage size C (CSA)
300 V
Wire cross section max. (CSA)
12 AWG
Wire cross section min. (CSA)
26 AWG
Conductors for clamping (additional connection)
Connection type, additional connection
Flat-blade connection
Conductors for clamping (rated connection)
Clamping range, max.
1 mm²
Connection direction
top
Number of connections
4
Type of connection
Flat-blade connection
General
Rail
TS 35
Standards
IEC 61210, In accordance with IEC 60947-7-1
Other connections
Cable-lug connection
Not slit
Rating data
Rated cross-section
1 mm²
Rated voltage
500 V
Rated DC voltage
500 V
Rated current
12 A
Current at maximum wires
12 A
Standards
IEC 61210, In accordance with IEC 60947-7-1
Volume resistance according to IEC 60947-7-x
2.37 mΩ
Rated impulse withstand voltage
6 kV
Power loss in accordance with IEC 60947-7-x
0.43 W
Pollution severity
3
UL rating data
Certificate No. (UR)
E60693
Conductor size Factory wiring max. (UR)
14 AWG
Conductor size Factory wiring min. (UR)
22 AWG
Conductor size Field wiring max. (UR)
14 AWG
Conductor size Field wiring min. (UR)
22 AWG
Current size B (UR)
16 A
Current size C (UR)
16 A
Voltage size B (UR)
250 V
Voltage size C (UR)
300 V
Classifications
ETIM 6.0
EC000897
ETIM 7.0
EC000897
ETIM 8.0
EC000897
ETIM 9.0
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
Order No.:
1021800000
Type:
WDU 2.5 F 2X2.8
Version:
W-Series, Feed-through terminal, Rated cross-section: 2.5 mm², Screw connection
Order No.:
1022200000
Type:
WDU 2.5 LL
Version:
W-Series, Feed-through terminal, Rated cross-section: 2.5 mm², Solder connection
Order No.:
1022100000
Type:
WDU 2.5 SL
Version:
W-Series, Feed-through terminal, Rated cross-section: 2.5 mm², Screw connection
Order No.:
1021200000
Type:
WDU 2.5 TS SE 2.4
Version:
W-Series, Feed-through terminal, Rated cross-section: 2.5 mm², Screw connection
Order No.:
1038900000
Type:
WDU 2.5/BLZ/7.62
Version:
Feed-through terminal block, Screw connection, 2.5 mm², 400 V, 21.5 A, Number of connections: 1
Version
W-Series, Feed-through terminal, Rated cross-section: 1 mm², Flat-blade connection
Order No.
1021900000
Type
WDU 2.5 FF 2X2.8
GTIN (EAN)
4008190138516
Qty.
100 pc(s).
Depth
46.25 mm
Depth (inches)
1.821 inch
Depth including DIN rail
47 mm
Height
60 mm
Height (inches)
2.362 inch
Width
5.1 mm
Width (inches)
0.201 inch
Net weight
6.93 g
Storage temperature
-25 °C...55 °C
Continuous operating temp., min.
-50 °C
Continuous operating temp., max.
120 °C
Material
Wemid
Colour
dark beige
UL 94 flammability rating
V-0
Version
With cable lug connection F2.8, Both sides, pluggable, One end without connector
End cover plate required
Yes
Number of potentials
1
Number of levels
1
Number of clamping points per level
0
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
Explosion-tested version
No
Number of similar terminals
1
Open sides
right
Type of mounting
Snap-on
Certificate No. (CSA)
12400-135
Current size C (CSA)
10 A
Voltage size C (CSA)
300 V
Wire cross section max. (CSA)
12 AWG
Wire cross section min. (CSA)
26 AWG
Connection type, additional connection
Flat-blade connection
Clamping range, max.
1 mm²
Connection direction
top
Number of connections
4
Type of connection
Flat-blade connection
Rail
TS 35
Standards
IEC 61210, In accordance with IEC 60947-7-1
Cable-lug connection
Not slit
Rated cross-section
1 mm²
Rated voltage
500 V
Rated DC voltage
500 V
Rated current
12 A
Current at maximum wires
12 A
Standards
IEC 61210, In accordance with IEC 60947-7-1
Volume resistance according to IEC 60947-7-x
2.37 mΩ
Rated impulse withstand voltage
6 kV
Power loss in accordance with IEC 60947-7-x
0.43 W
Pollution severity
3
Certificate No. (UR)
E60693
Conductor size Factory wiring max. (UR)
14 AWG
Conductor size Factory wiring min. (UR)
22 AWG
Conductor size Field wiring max. (UR)
14 AWG
Conductor size Field wiring min. (UR)
22 AWG
Current size B (UR)
16 A
Current size C (UR)
16 A
Voltage size B (UR)
250 V
Voltage size C (UR)
300 V
ETIM 6.0
EC000897
ETIM 7.0
EC000897
ETIM 8.0
EC000897
ETIM 9.0
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
Approvals
ROHS
Conform
UL File Number Search
UL Website
Certificate No. (UR)
E60693
Order No.:
1021800000
Type:
WDU 2.5 F 2X2.8
Version:
W-Series, Feed-through terminal, Rated cross-section: 2.5 mm², Screw connection
Order No.:
1022200000
Type:
WDU 2.5 LL
Version:
W-Series, Feed-through terminal, Rated cross-section: 2.5 mm², Solder connection
Order No.:
1022100000
Type:
WDU 2.5 SL
Version:
W-Series, Feed-through terminal, Rated cross-section: 2.5 mm², Screw connection
Order No.:
1021200000
Type:
WDU 2.5 TS SE 2.4
Version:
W-Series, Feed-through terminal, Rated cross-section: 2.5 mm², Screw connection
Order No.:
1038900000
Type:
WDU 2.5/BLZ/7.62
Version:
Feed-through terminal block, Screw connection, 2.5 mm², 400 V, 21.5 A, Number of connections: 1
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