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280-557
Data Sheet
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Wago 280-557 Data Sheet

Data sheet | Item number:280-557
Triple-deck terminal block; Ground conductor/through/through terminal block; with marker carrier; for DIN-rail 35 x 15 and 35 x 7.5; 2.5 mm²; CAGE CLAMP®

Item description

Note:
280-557
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Data sheet | Item number:280-557
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.
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

Data

Electrical data

Ratings per IEC/EN 60664-1

Rated voltage (III / 3) 500 V
Rated impulse voltage (III / 3) 6 kV
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 6
Total number of potentials 3
Number of levels 3
Type of wiring Front-entry wiring
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Data sheet | Item number:280-557

Geometrical Data

Width 5mm/ 0.197inch
Height from upper-edge of DIN-35 rail 76.5mm/ 3.012inch
Depth 103mm/ 4.055inch

Mechanical data

Design horizontal
Type of mounting DIN-35 rail
Marking level Center marking

Material Data

Color green-yellow/gray/gray
Insulating material Polyamide 66 (PA 66)
Fire load 0.274 MJ
Weight 21.754g

Commercial data

Product Group 1 (Rail Mounted Terminal Blocks)
Country of origin CN
GTIN 4050821293750
Customs Tariff No. 85369010000

Compatible products

Marking accessories
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280-557
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Data sheet | Item number:280-557
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793-501
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280-557
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Data sheet | Item number:280-557
Item no.: 793-5501 WMB marking card; as card; for terminal block width 5 - 17.5 mm; stretchable 5 - 5.2 mm; plain; snap­on type
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Item no.: 793-5501/000-002 WMB marking card; as card; for terminal block width 5 - 17.5 mm; stretchable 5 - 5.2 mm; plain; snap­on type
793-5501
/000-002
Item no.: 793-5501/000-005 WMB marking card; as card; stretchable 5 - 5.2 mm; plain; snap-on type
793-5501
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Item no.: 793-5501/000-006 WMB marking card; as card; stretchable 5 - 5.2 mm; plain; snap-on type
793-5501
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Item no.: 793-5501/000-012 WMB marking card; as card; stretchable 5 - 5.2 mm; plain; snap-on type
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Item no.: 793-5501/000-017 WMB marking card; as card; stretchable 5 - 5.2 mm; plain; snap-on type
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Item no.: 793-5501/000-023 WMB marking card; as card; stretchable 5 - 5.2 mm; plain; snap-on type
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End plate
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Intermediate plate; 1.1 mm thick
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Carrier rail
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Item no.: 210-114 Steel carrier rail; 35 x 15 mm; 1.5 mm thick; 2 m long; unslotted; similar to EN 60715
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Item no.: 210-115 Steel carrier rail; 35 x 7.5 mm; 1 mm thick; 2 m long; slotted; according to EN 60715; "Hole width 18
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280-557
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Data sheet | Item number:280-557
mm
Item no.: 210-118 Steel carrier rail; 35 x 15 mm; 2.3 mm thick; 2 m long; unslotted; according to EN 60715
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Female plug
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232-132
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Item no.: 232-133/005-000
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280-557
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