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Wago 281-668
Through terminal block, 281 Series, CAGE CLAMP®Connect conductors quickly and securely with this through terminal block (item number 281-668). Conductors should only be connected to this through termi…
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Description
Through terminal block, 281 Series, CAGE CLAMP®Connect conductors quickly and securely with this through terminal block (item number 281-668). Conductors should only be connected to this through terminal block if their strip length is between 9 and 10 mm . Whether for use in industry or building installations, our rail-mount through terminal blocks allow you to quickly and securely connect electrical conductors. They’re perfect for either classic through-wiring or distributing potential, depending on the variant. This product incorporates conductor terminals and utilizes CAGE CLAMP®. Our reliable and maintenance-free CAGE CLAMP® connection makes it easy to connect all types of conductors without having to prepare the conductor. For example, you don’t need to crimp ferrules. This through terminal block is suitable for conductor cross sections ranging from 0.08 mm² to 4 mm².An operating tool is used to operate this through rail-mount terminal block.
Specification
Electrical data - Ratings per IEC/EN
| Ratings per | IEC/EN 60947-7-1 |
|---|---|
| Nominal voltage (III/3) | 800 V |
| Rated impulse withstand voltage (III / 3) | 8 kV |
| Rated current | 26 A |
| Legend (ratings) | (III / 3) ≙ Overvoltage category III / Pollution degree 3 |
| Ratings per | IEC/EN 60947-7-1 / IEC/EN 60947-7-1 / IEC/EN 60947-7-1 |
| Overvoltage category | III / III / II |
| Pollution degree | 3 / 2 / 2 |
| Nominal voltage | 800 V |
| Rated impulse withstand voltage | 8 kV |
| Rated current | 26 A |
Electrical data - Power Loss
| Power loss, per pole (potential) | 0.676 W |
|---|---|
| Rated current I<sub>N</sub> for power loss specification | 26 A |
| Resistance value for specified, current-dependent power loss | 0.001 Ω |
Electrical data - General information
| Wiring direction | Front-entry wiring |
|---|
Connection data
| Clamping units | 4 |
|---|---|
| Total number of potentials | 1 |
| Number of levels | 1 |
Connection data - 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 249-130 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 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 … 4 mm² / 28 … 12 AWG |
| Fine-stranded conductor | 0.08 … 4 mm² / 28 … 12 AWG |
| Strip length | 9 … 10 mm / 0.35 … 0.39 inches |
| Wiring direction | Front-entry wiring |
Physical data
| Width | 6 mm / 0.236 inches |
|---|---|
| Height | 86 mm / 3.386 inches |
| Depth from upper-edge of DIN-rail | 29 mm / 1.142 inches |
Mechanical data
| Design | horizontal type |
|---|---|
| Mounting type | DIN-35 rail |
| Marking level | Center marking |
Material data
| Note (material data) | Information on material specifications can be found here |
|---|---|
| Color | yellow |
| Material group | I |
| Insulation material (main housing) | Polyamide (PA66) |
| Flammability class per UL94 | V0 |
| Fire load | 0.205 MJ |
| Weight | 12.7 g |
Environmental requirements
| Processing temperature | -35 … +85 °C |
|---|---|
| Continuous operating temperature | -60 … +105 °C |
Commercial data
| PU (SPU) | 50 pcs |
|---|---|
| Packaging type | box |
| Country of origin | DE |
| GTIN | 4044918486637 |
| Customs tariff number | 85369010000 |
Product Classification
| UNSPSC | 39121410 |
|---|---|
| eCl@ss 10.0 | 27-14-11-20 |
| eCl@ss 9.0 | 27-14-11-20 |
| ETIM 9.0 | EC000897 |
| ETIM 10.0 | EC000897 |
| ECCN | NO US CLASSIFICATION |
Environmental Product Compliance
| RoHS Compliance Status | Compliant,No Exemption |
|---|
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