280-543

Additional Information

Part Number

280-543

UPC

4050821293705

Tariff Code

85369010000

ETIM

Group Code : EG000012

Group Description : Terminal blocks

Class Description : Feed-through terminal block

Class Code : EC000897

Version : 7

Ratings Per Iec/En

Ratings per

IEC/EN 60947-7-1

Nominal voltage (III/3)

500 V

Rated impulse voltage (III/3)

6 kV

Rated current

20 A

Legend (ratings)

(III / 3) ≙ Overvoltage category III / Pollution degree 3

Environmental Requirements

Processing temperature

-35 … +85 °C

Continuous operating temperature

-60 … +105 °C

Physical Data

Width

5 mm / 0.197 inches

Height

95 mm / 3.74 inches

Depth from upper-edge of DIN-rail

58.5 mm / 2.303 inches

Material Data

Note (material data)

<a href="https://www.wago.com/us/material-specifications" href="_blank">Information on material specifications can be found here</a>

Color

Gray/gray

Material group

I

Insulation material

Polyamide (PA66)

Flammability class per UL94

V0

Fire load

0.158 MJ

Weight

11.400 g

Mechanical Data

Design

Horizontal type

Mounting type

DIN-35 rail

Marking level

Center/side marking

Specifications

Product Group Code

0001

Commercial Data

Packaging type

Box

Country of origin

CN

GTIN

4050821293705

Customs tariff number

85369010000

Power Loss

Power loss, per pole (potential)

0.532 W

Rated current IN for specified power loss

20 A

Resistance value for specified, current-dependent power loss

0.00133 Ω

Connection 1

Connection technology

CAGE CLAMP®

Actuation type

Operating tool

Connectable conductor materials

Copper || Aluminum

Connectable conductor materials (note)

Terminating Aluminum ConductorsWAGO spring clamp terminal blocks are suitable for solid aluminum conductors up to 4 mm²/12 AWG if WAGO “Alu-Plus” Contact Paste <a href="https://www.wago.com/249-130">249-130</a> 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 A4 mm² = 22 A

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 inches

Wiring direction

Front-entry wiring