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280-994
Data Sheet
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Wago 280-994 Data Sheet

Data sheet | Item number:280-994
4-conductor through terminal block; 2.5 mm²; suitable for Ex e II applications; 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 4mm²/12AWG if WAGO “Alu-Plus” Contact Paste is used for termination.
“Alu-Plus” Contact Paste Advantages:
Automatically destroys the oxide film during clamping.
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Data sheet | Item number:280-994
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:
2.5mm² (14 AWG) = 16 A 4mm² (12 AWG) = 22 A
Safety information 1:
Using staggered jumpers, the maximum rated voltage is reduced to 275 V.

Data

Electrical data

Rated voltage EN (Ex e II) 550 V

Ratings per IEC/EN 60664-1

Rated current 20 A

Connection data

Connection technology
CAGE CLAMP
®
Actuation type Operating tool
Connectable conductor materials Copper
Aluminum
Solid conductor 0.08 … 2.5mm²/ 28 … 12AWG
Fine-stranded conductor 0.08 … 2.5mm²/ 28 … 12AWG
Strip length 8 … 9mm/ 0.31 … 0.35inch
Note (conductor cross-section) 12 AWG: THHN, THWN
Total number of connection points 4
Total number of potentials 1
Number of levels 1
Type of wiring Front-entry wiring

Geometrical Data

Width 5mm/ 0.197inch
Height from upper-edge of DIN-35 rail 28mm/ 1.102inch
Depth 75mm/ 2.953inch
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Data sheet | Item number:280-994
Mechanical data
Design horizontal
Type of mounting DIN-35 rail
Marking level Center marking

Material Data

Color light gray
Insulating material Polyamide 66 (PA 66)
Fire load 0.146 MJ
Weight 9.098g

Commercial data

Country of origin DE
GTIN 4044918311496
Customs Tariff No. 85369010000

Approvals / Certificates

Ex-Approvals
Logo Approval Additional Approval Text
Certificate name
AEx
UL International Germany GmbH c/o Physikalisch Technische Bundesanstalt
UL 60079 E185892
sec.1
ATEx
Physikalisch Technische Bundesanstalt (PTB)
EN 60079 PTB 99
ATEX 3109 U
Country specific Approvals
Logo Approval Additional Approval Text
Certificate name
CCA
DEKRA Certification B.V.
EN 60947 2157201.01
CSA
DEKRA Certification B.V.
C22.2 1536071
Ship Approvals
Logo Approval Additional Approval Text
Certificate name
280-994
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Data sheet | Item number:280-994
ABS
American Bureau of Shipping
EN 60947 14-
HG1293677­PDA
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

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Data sheet | Item number:280-994
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Data sheet | Item number:280-994
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