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Wago 257-498
PCB terminal block, 257 Series, grayThis PCB terminal block (item number 257-498) is designed for quick and easy connections. It is perfect for custom installations with different mounting types. Stri…
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Description
PCB terminal block, 257 Series, grayThis PCB terminal block (item number 257-498) is designed for quick and easy connections. It is perfect for custom installations with different mounting types. Strip lengths must be between 5 and 6 mm when connecting conductors to this PCB terminal block. This product features one conductor terminal and utilizes CAGE CLAMP®. Our proven universal connection known as CAGE CLAMP® is the industry standard for connection technology and electrical interconnections. Dimensions: (242.9 x 24.2 x 14.2) mm (width x height x depth). Depending on the conductor type, this PCB terminal block is suitable for conductor cross sections ranging from 0.08 mm² to 2.5 mm².Tin is used for coating the contact surfaces. Push-button (angled) is used to operate this PCB terminal block. The PCB terminal block is designed for THT soldering. Insert the conductor at a 0° angle..
Specification
Notes
| Variants: | Other pole numbers, Versions for Ex e II and Ex i, Other colors, Mixed-color PCB connector strips, Direct marking, Other versions (or variants) can be requested from WAGO Sales or configured at https://configurator.wago.com/. |
|---|
Electrical data - Ratings per IEC/EN
| Ratings per | IEC/EN 60664-1 |
|---|---|
| Nominal voltage (III/3) | 250 V |
| Rated impulse withstand voltage (III / 3) | 4 kV |
| Rated voltage (III/2) | 320 V |
| Rated impulse withstand voltage (III/2) | 4 kV |
| Nominal voltage (II/2) | 630 V |
| Rated impulse withstand voltage (II/2) | 4 kV |
| Rated current | 24 A |
| Legend (ratings) | (III / 2) ≙ Overvoltage category III / Pollution degree 2 |
| Ratings per | IEC/EN 60664-1 / IEC/EN 60664-1 / IEC/EN 60664-1 |
| Overvoltage category | III / III / II |
| Pollution degree | 3 / 2 / 2 |
| Nominal voltage | 250 V / 320 V / 630 V |
| Rated impulse withstand voltage | 4 kV / 4 kV / 4 kV |
| Rated current | 24 A / 24 A / 24 A |
Electrical data - Ratings per UL
| Approvals per | UL 1059 |
|---|---|
| Rated voltage UL (Use Group B) | 300 V |
| Rated current UL (Use Group B) | 15 A |
| Rated voltage UL (Use Group D) | 300 V |
| Rated current UL (Use Group D) | 10 A |
| Approvals per | UL 1059 / UL 1059 / UL 1059 |
| Use group | B / C / D |
| Rated voltage | 300 V / 300 V |
| Rated current | 15 A / 10 A |
Electrical data - Ratings per CSA
| Approvals per | CSA |
|---|---|
| Rated voltage CSA (Use Group B) | 300 V |
| Rated current CSA (Use Group B) | 15 A |
| Rated voltage CSA (Use Group D) | 300 V |
| Rated current CSA (Use Group D) | 10 A |
| Approvals per | CSA / CSA / CSA |
| Use group | B / C / D |
| Rated voltage | 300 V / 300 V |
| Rated current | 15 A / 10 A |
Connection data
| Clamping units | 48 |
|---|---|
| Total number of potentials | 48 |
| Number of connection types | 1 |
| Number of levels | 1 |
Connection data - Connection 1
| Connection technology | CAGE CLAMP® |
|---|---|
| Actuation type | Push-button (angled) |
| Solid conductor | 0.08 … 2.5 mm² / 28 … 12 AWG |
| Fine-stranded conductor | 0.08 … 2.5 mm² / 28 … 12 AWG |
| Fine-stranded conductor; with insulated ferrule | 0.25 … 1.5 mm² |
| Fine-stranded conductor; with uninsulated ferrule | 0.25 … 1.5 mm² |
| Note (conductor cross-section) | 12 AWG: THHN, THWN |
| Strip length | 5 … 6 mm / 0.2 … 0.24 inches |
| Conductor connection direction to PCB | 0 ° |
| Pole number | 48 |
Physical data
| Pin spacing | 5/5.08 mm / 0.197/0.2 inches |
|---|---|
| Width | 242.9 mm / 9.563 inches |
| Height | 24.2 mm / 0.953 inches |
| Height from the surface | 20.2 mm / 0.795 inches |
| Depth | 14.2 mm / 0.559 inches |
| Solder pin length | 4 mm |
| Solder pin dimensions | 0.7 x 0.7 mm |
| Drilled hole diameter with tolerance | 1.1 (+0.1) mm |
PCB contact
| PCB contact | THT |
|---|---|
| Solder pin arrangement | over the entire terminal strip (in-line) |
| Number of solder pins per potential | 2 |
Material data
| Note (material data) | Information on material specifications can be found here |
|---|---|
| Color | gray |
| Material group | I |
| Insulation material (main housing) | Polyamide (PA66) |
| Flammability class per UL94 | V0 |
| Clamping spring material | Chrome-nickel spring steel (CrNi) |
| Contact material | Electrolytic copper (ECu) |
| Contact plating | Tin |
| Fire load | 1.013 MJ |
| Weight | 54.8 g |
Environmental requirements
| Limit temperature range | -60 … +105 °C |
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Commercial data
| Product Group | 4 (Printed Circuit Connectors) |
|---|---|
| PU (SPU) | 20 (5) pcs |
| Packaging type | box |
| Country of origin | PL |
| GTIN | 4044918412698 |
| Customs tariff number | 85369010000 |
Product Classification
| UNSPSC | 39121409 |
|---|---|
| eCl@ss 10.0 | 27-44-04-01 |
| eCl@ss 9.0 | 27-44-04-01 |
| ETIM 9.0 | EC002643 |
| ETIM 10.0 | EC002643 |
| ECCN | NO US CLASSIFICATION |
Environmental Product Compliance
| RoHS Compliance Status | Compliant,No Exemption |
|---|
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