Wago 281-104 Data Sheet
Data sheet | Item number:281-104
2-conductor through terminal block; 4 mm²; suitable for Ex i applications;
lateral marker slots; for DIN-rail 35 x 15 and 35 x 7.5; CAGE CLAMP®
Color:
Item description
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Data sheet | Item number:281-104
Note:
Terminating Aluminum Conductors
WAGO spring clamp terminal blocks are suitable for solid aluminum conductors up to 4mm²/12AWG if WAGO “Alu-Plus” Contact Paste is used for
termination.
“Alu-Plus” Contact Paste Advantages:
Automatically destroys the oxide film during clamping.
Prevents fresh oxidation at the clamping point.
Prevents electrolytic corrosion between aluminum and copper conductors (in the same terminal block).
Provides long-term protection against corrosion.
Using terminal blocks with CAGE CLAMP® Spring Pressure Connection Technology, and aluminum conductors must first be cleaned with a blade
then immediately be inserted into the clamping units filled with “Alu-Plus” Contact Paste.
It is also possible to apply WAGO “Alu-Plus” on the whole surface of the aluminum conductor before termination.additionally
Please note that the nominal currents must be adapted to the reduced conductivity of the aluminum conductors:
2.5mm² (14 AWG) = 16 A
4mm² (12 AWG) = 22 A
Data
Electrical data
Ratings per IEC/EN 60664-1
Rated voltage (III / 3) 800 V
Rated impulse voltage (III / 3) 8 kV
Rated current 32 A
Connection data
Connection technology
CAGE CLAMP
®
Actuation type Operating tool
Connectable conductor materials Copper
Aluminum
Solid conductor 0.08 … 4mm²/ 28 … 12AWG
Fine-stranded conductor 0.08 … 4mm²/ 28 … 12AWG
Strip length 9 … 10mm/ 0.35 … 0.39inch
Total number of connection points 2
Total number of potentials 1
Number of levels 1
Type of wiring Side-entry wiring
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Data sheet | Item number:281-104
Geometrical Data
Width 6mm/ 0.236inch
Height from upper-edge of DIN-35 rail 32.5mm/ 1.28inch
Depth 42.5mm/ 1.673inch
Mechanical data
Design horizontal
Type of mounting DIN-35 rail
Marking level Side marking
Material Data
Color blue
Insulating material Polyamide 66 (PA 66)
Fire load 0.108 MJ
Weight 6.091g
Commercial data
Country of origin IN
GTIN 4045454076054
Customs Tariff No. 85369010000
Approvals / Certificates
Country specific Approvals
Logo Approval Additional Approval Text
Certificate
name
CCA
DEKRA Certification B.V.
EN 60947 NTR NL-
7454/A1
CCA
DEKRA Certification B.V.
IEC 60947 NTR NL-
7454/A1
CSA
DEKRA Certification B.V.
C22.2 No. 158 1505034
KEMA/KEUR
DEKRA Certification B.V.
EN 60947 71-
107288
Ship Approvals
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