Item no. 280-570

4-conductor sensor terminal block; with ground contact; with colored conductor entries; 2.5 mm²; CAGE CLAMP®; 2,50 mm²; gray

Item no. 280-570
Stock item

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, aluminum conductors must first be cleaned with a blade and then immediately be inserted into the clamping units filled with “Alu-Plus” Contact Paste.

It is also possible to apply WAGO “Alu-Plus” additionally on the whole surface of the aluminum conductor before termination.

Please note that the nominal currents must be adapted to the reduced conductivity of the aluminum conductors::
2.5 mm² = 16 A
4 mm² = 22 A

Product details

Electrical data
Ratings per IEC/EN
Nominal voltage (III/3) 400 V
Rated surge voltage (III/3) 6 kV
Rated current 20 A
Legend (ratings) (III / 3) ≙ Overvoltage category III / Pollution degree 3
Connection data
Connection technology CAGE CLAMP®
Actuation type Operating tool
Connectable conductor materials Copper
Solid conductor 0.08 … 2.5 mm² / 28 … 12 AWG
Fine-stranded conductor 0.08 … 2.5 mm² / 28 … 12 AWG
Note (conductor cross-section) 12 AWG: THHN, THWN
Strip length 8 … 9 mm / 0.31 … 0.35 inch
Total number of connection points 5
Total number of potentials 4
Number of levels 4
Wiring type Front-entry wiring
Physical data
Width 5 mm / 0.197 inch
Height 90.5 mm / 3.563 inch
Depth from upper edge of DIN-rail 63.5 mm / 2.5 inch
Mechanical data
Design angled
Mounting type DIN-35 rail
Marking level Center marking
Material data
Color gray
Insulation material Polyamide (PA66)
Fire load 0.218 MJ
Weight 18.5 g
Commercial data
Product Group 1 (Rail Mounted Terminal Blocks)
Packaging type BOX
Country of origin DE
GTIN 4045454093693
Customs tariff number 85369010000
Approvals / Certificates
Country specific Approvals
Additional Approval Text
Certificate name
Approval: CCA
DEKRA Certification B.V.
Additional Approval Text EN 60947
Certificate name: 2160584.53
Approval: CSA
DEKRA Certification B.V.
Additional Approval Text C22.2
Certificate name: 1536071
Ship Approvals
Additional Approval Text
Certificate name
Approval: ABS
American Bureau of Shipping
Additional Approval Text EN 60947
Certificate name: 20-HG1941090-PDA
Approval: DNV GL
Det Norske Veritas, Germanischer Lloyd
Additional Approval Text -
Certificate name: TAE00001V2
Additional Approval Text
Certificate name
Approval: UR
Underwriters Laboratories Inc.
Additional Approval Text UL 1059
Certificate name: 20190731-E45172
Bid Text
Additional Information
CAD data
CAE data
Required accessories
Compatible products
Installation Notes
2 Images

Snapping a terminal block onto the DIN-rail.

Terminal blocks with a grounding foot automatically establish a direct contact to the rail.

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2 Images
Conductor termination

CAGE CLAMP® connection

Inserting a conductor via straight operating tool (210-720).

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1 Image

Commoning using an adjacent jumper (280‑402).

Push jumper down until fully inserted.

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2 Images

Testing via banana plug and test plug adapter (209-170).

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1 Image

Sensor terminal block paired with a 3-conductor sensor (ground connection)

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1 Image

Min. mounting distance – terminal blocks to cable duct

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1 Image

Labeling via WMB Multi Marking System.

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