# Wire-To-Board Terminal Block, Grey, 5 mm, 4 Ways, 28 AWG, 12 AWG, 2.5 mm², Clamp

![Product image](https://novapart.co/image/farnell:4905835/)

**URL**: https://novapart.co/products/256-404/wire-to-board-terminal-block-grey-5-mm-4-ways-28
**SKU**: 256-404
**Manufacturer**: WAGO
**Category**: Connectors || Terminal Blocks & Accessories || Wire-To-Board Terminal Blocks
**Price**: €1.3000
**Stock**: 10+
**Lead Time**: 36 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| Pitch Spacing | 5mm |
| Product Range | 256 Series |
| Rated Current | 24A |
| Rated Voltage | 630V |
| No. Of Positions | 4Ways |
| Block Orientation | Through Hole 45° |
| Wire Size Awg Max | 12AWG |
| Wire Size Awg Min | 28AWG |
| Conductor Area Csa | 2.5mm² |
| Wire Connection Method | Clamp |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4905835/)

## Data Sheet | Item Number: 256-404 

PCB terminal block; push-button; 2.5 mm²; Pin spacing 5/5.08 mm; 4-pole; CAGE CLAMP®; commoning option; gray 

https://www.wago.com/256-404 

> Color: | gray 

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Version 09.03.2026 

# Data Sheet | Item Number: 256-404 https://www.wago.com/256-404 

# Dimensions in mm L = (pole no. x pin spacing) + 2.9 mm 

. 

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PCB terminal block, 256 Series, push-button<br>**----- End of picture text -----**<br>


# Connect conductors quickly and safely with this PCB terminal block (item number 256-404). You can count on proven safety with these PCB terminal blocks, perfect for a wide range of applications when designing your devices. 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 CAGE CLAMP® connection provides a reliable and maintenance-free way to connect all types of conductors. You do not need to prepare the conductor in any way, such as crimping ferrules. The item's dimensions are (22.9 x 22.2 x 17.6) mm (width x height x depth). 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. This PCB terminal block is operated with a push-button. THT is used to solder the PCB terminal block. In­ sert the conductor into the board at a 45° angle.. 

|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://|Other versions (or variants) can be requested from WAGO Sales or configured at https://|Other versions (or variants) can be requested from WAGO Sales or configured at https://||
||||||configurator.wago.com/.||||
|.|||||||||
|Electrical data|||||||||
|Ratings per||IEC/EN 60664-1|||Approvals per||UL 1059||
|Overvoltage category|III|III|II||Use group|B|C|D|
|Pollution degree|3|2|2||Rated voltage|300 V|-|300 V|
|Nominal voltage|250 V|320 V|630 V||Rated current<br>.|15 A|-|10 A|
|Rated impulse withstand voltage|4 kV|4 kV|4 kV||||||
|Rated current|24 A|24 A|24 A|24 A|||||
|.|||||||||
|Approvals per||CSA|||||||
|Use group|B|C|D||||||
|Rated voltage|300 V|-|300 V||||||
|Rated current|15 A|-|10 A|10 A|||||
|.|||||||||
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|||||
|---|---|---|---|
|Data Sheet | Item Number: 256-404|
|https://www.wago.com/256-404|
|Connection Data|
|Clamping units|4|Connection 1|
|Total number of potentials|4|Connection technology|CAGE CLAMP®|
|Number of connection types|1|Actuation type|Push-button|
|Number of levels|1|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|0.25 … 1.5 mm²|
|ferrule|
|Fine-stranded conductor; with uninsula­|0.25 … 1.5 mm²|
|ted ferrule|
|Note (conductor cross-section)|12 AWG: THHN, THWN|
|Strip length|5 … 6 mm / 0.2 … 0.24 inches|
|Conductor connection direction to PCB|45 °|
|Pole number|4|
|.|
|Physical data|
|Pin spacing|5/5.08 mm / 0.197/0.2 inches|
|Width|22.9 mm / 0.902 inches|
|Height|22.2 mm / 0.874 inches|
|Height from the surface|18.2 mm / 0.717 inches|
|Depth|17.6 mm / 0.693 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|0.052 MJ|
|Weight|4 g|
|.|
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||||||
|---|---|---|---|---|
|Data Sheet | Item Number: 256-404|
|https://www.wago.com/256-404|
|—|WACO|
|OT|Environmental requirements|
|Limit temperature range|-60 … +105 °C|
|.|
|Commercial data|
|OT|
|Product Group|4 (Printed Circuit Connectors)|
|PU (SPU)|200 (50) pcs|
|Packaging type|Box|
|Country of origin|CH|
|GTIN|4044918756228|
|Customs tariff number|85369010000|
|.|
|Product Classification|
|LO|
|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|
|.|
|cee|Environmental Product Compliance|eee ee ee ee|ee|eeeee|
|RoHS Compliance Status|Compliant,No Exemption|
|.|
|Approvals / Certificates|
|LS|
|General approvals|Declarations of conformity and manufacturer's declarations|
|Approval|Standard|Certificate Name|
|ket]|(CA|@|x.|
|EU-Declaration of Confor­|-|-|
|Approval|Standard|Certificate Name|mity|
|WAGO GmbH & Co. KG|
|CCA|EN 60947|2160584.34|
|DEKRA Certification B.V.|UK-Declaration of Confor­|-|-|
|CCA|EN 60947|NTR NL-7138|mity|
|WAGO GmbH & Co. KG|
|DEKRA Certification B.V.|
|CCADEKRA Certification B.V.|IEC 60947-7-4|71-113042|.|
|CSA|C22.2 No. 158|70049157|
|DEKRA Certification B.V.|
|UL|UL 1059|20190731-E45172|
|Underwriters Laboratories|
|Inc.|
|.|
|Approvals for marine applications|
|@|&)|
|Approval|Standard|Certificate Name|
|ABS|-|24-0095975-PDA|
|American Bureau of Ship­|
|ping|
|BV|IEC 60998|11915/E0 BV|
|Bureau Veritas S.A.|
|DNV|-|TAE000016Z|
|DNV GL SE|
|PRS|-|TE/1095/880590/23|
|Polski Rejestr Statków|

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Data Sheet | Item Number: 256-404 https://www.wago.com/256-404 ~~a~~ wAco Downloads ~~i~~ Environmental Product Compliance Compliance Search Environmental Product Compliance 256-404 ~~es~~ . Documentation Additional Information Technical Section pdf 03.04.2019 2027.26 KB ~~els~~ Gebrückte Klemmen­ pdf leisten für Leiterplatten 303.71 KB ~~v~~ . CAD/CAE-Data CAD data CAE data 2D/3D Models 256-404 EPLAN Data Portal 256-404 ~~en eee~~ . ZUKEN Portal 256-404 ~~NZ~~ . PCB Design Symbol and Footprint via SamacSys 256-404 ~~>)~~ Symbol and Footprint via Ultra Librarian ~~v~~ 256-404 . 1 Compatible Products ~~,~~ le 1.1 Optional Accessories 

1.1.1 Ferrule 1.1.1.1 Ferrule 

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|||||
|---|---|---|---|
|Item No.: 216-321|Item No.: 216-151|Item No.: 216-322|Item No.: 216-152|
|Ferrule; Sleeve for 0.25 mm² / AWG 24; in­|Ferrule; Sleeve for 0.25 mm² / AWG 24;|Ferrule; Sleeve for 0.34 mm² / 22 AWG; in­|Ferrule; Sleeve for 0.34 mm² / AWG 24;|
|sulated; electro-tin plated; yellow|uninsulated; electro-tin plated|sulated; electro-tin plated; light turquoise|uninsulated; electro-tin plated|
||J|
|Item No.: 216-221|Item No.: 216-121|Item No.: 216-222|Item No.: 216-122|
|Ferrule; Sleeve for 0.5 mm² / 20 AWG; in­|Ferrule; Sleeve for 0.5 mm² / AWG 22; un­|Ferrule; Sleeve for 0.75 mm² / 18 AWG; in­|Ferrule; Sleeve for 0.75 mm² / AWG 20;|
|sulated; electro-tin plated; white|insulated; electro-tin plated; silver-colo­|sulated; electro-tin plated; gray|uninsulated; electro-tin plated; silver-co­|
|red|lored|
|d|J|h|J|
|Item No.: 216-223|Item No.: 216-123|Item No.: 216-224|Item No.: 216-124|
|Ferrule; Sleeve for 1 mm² / AWG 18; insu­|Ferrule; Sleeve for 1 mm² / AWG 18; unin­|Ferrule; Sleeve for 1.5 mm² / AWG 16; in­|Ferrule; Sleeve for 1.5 mm² / AWG 16; un­|
|lated; electro-tin plated; red|sulated; electro-tin plated; silver-colored|sulated; electro-tin plated; black|insulated; electro-tin plated|
|.|

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Version 09.03.2026 

# Data Sheet | Item Number: 256-404 https://www.wago.com/256-404 1.1.2 Tool 

# 1.1.2.1 Operating tool Item No.: 210-658 Item No.: 210-720 Operating tool; Blade: 3.5 x 0.5 mm; with a Operating tool; Blade: 3.5 x 0.5 mm; with a partially insulated shaft; angled; short; partially insulated shaft; multicoloured multicoloured . Installation Notes Conductor termination ¥ < 4 — s y . PAS?re” —~ kcco ee “Tecile Kaeyee od . Inserting/removing a conductor – 256 Se­ Inserting/removing a conductor (255 Se­ Inserting/removing a conductor via fin­ Inserting/removing a conductor via fingerries. ries) ger-operated lever – 255 Series. operated lever – 256 Series. . Installation Ad ey Ce We — te ae SS Possible conductor arrangement with ter­ minal strips staggered (for 256 Series on­ ly). . Marking bebe pay “ifzts(ststeyrpeye|v|t sjejeisi222/2 iesen Formation of groups using housings of dif­ ferent colors . Testing " SA a Testing with test probes. Testing with test plug modules. . Subject to changes. Please also observe the further product documentation! Current addresses can be found at:: www.wago.com Page 6/6 Version 09.03.2026 



## Links

- [View this product on Novapart](https://novapart.co/products/256-404/wire-to-board-terminal-block-grey-5-mm-4-ways-28)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/wago/256-404/terminal-block-wtb-45deg-4p-24a/dp/4905835)
---

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