Data sheet | Item number:281-681
3-conductor through terminal block; 4 mm²; center marking; for DIN-rail 35 x
15 and 35 x 7.5; CAGE CLAMP®
Color:
Item description
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.
281-681
02.05.2019Page /1 11
Data sheet | Item number:281-681
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 3
Total number of potentials 1
Number of levels 1
Type of wiring Front-entry wiring
Geometrical Data
Width 6mm/ 0.236inch
Height from upper-edge of DIN-35 rail 29mm/ 1.142inch
Depth 73.5mm/ 2.894inch
Mechanical data
Design horizontal
281-681
02.05.2019Page /2 11
Data sheet | Item number:281-681
Design horizontal
Type of mounting DIN-35 rail
Marking level Center marking
Material Data
Color gray
Insulating material Polyamide 66 (PA 66)
Fire load 0.174 MJ
Weight 10.7g
Commercial data
Product Group 1 (Rail Mounted Terminal Blocks)
Country of origin DE
GTIN 4044918484909
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
CSA
DEKRA Certification B.V.
UL 1059 1505034
KEMA/KEUR
DEKRA Certification B.V.
EN 60947 71-
107288
Ship Approvals
Logo Approval Additional Approval Text
Certificate
name
ABS
American Bureau of Shipping
- 14HG1293677PDA
281-681
02.05.2019Page /3 11
Data sheet | Item number:281-681
BV
Bureau Veritas S.A.
EN 60947 07436/E0 BV
DNV GL
Det Norske Veritas, Germanischer Lloyd
- TAE00001V2
LR
Lloyds Register
EN 60947 91/20112
(E9)
UL-Approvals
Logo Approval Additional Approval Text
Certificate
name
UL
Underwriters Laboratories Inc.
UL 1059 20170731-
E45172
Compatible products
check
Item no.: 209-170
Test plug adapter; 8.3 mm wide; for 4 mm Ø test plugs; suitable for 1.5 mm² - 10 mm² tbs
209-170
End plate
Item no.: 281-324
End and intermediate plate; 2.5 mm thick
281-324
Item no.: 281-326
End and intermediate plate; 2.5 mm thick
281-326
Item no.: 281-344
Separator plate; 2 mm thick; oversized
281-344
Item no.: 281-346
Separator plate; 2 mm thick; oversized
281-346
281-681
02.05.2019Page /4 11