# DIN Rail Mount Terminal Block, 4 Ways, 28 AWG, 12 AWG, 2.5 mm², Clamp, 22 A

![Product image](https://novapart.co/image/farnell:3241097/)

**URL**: https://novapart.co/products/3031283/din-rail-mount-terminal-block-4-ways-28-awg-12-25
**SKU**: 3031283
**Manufacturer**: PHOENIX CONTACT
**Category**: Connectors || Terminal Blocks & Accessories || DIN Rail Terminal Blocks
**Price**: €2.5700
**Stock**: 10+
**Lead Time**: 36 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| No. Of Levels | 2 |
| Product Range | CLIPLINE STTB |
| Rated Current | 22A |
| Rated Voltage | 500V |
| No. Of Positions | 4Ways |
| 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:3241097/)

_**Module no:3031270 LabelId:3031270 Operator:Phoenix**_ 

_**19:02:55, Donnerstag, 28. Juni 2001**_ 

## **STTB 2,5 Z** 

Terminal width 5.2 

|(IEC)<br>rigid|flexible|I|U|||
|---|---|---|---|---|---|
|[mm2]<br>solid|stranded<br>AWG|[A]|[V]|||
|IEC 60 947-7-1<br>0.2-4|0.2-2.5<br>24-12|24|500|||
|Description<br>**Spring cage terminal**<br>**block,**<br>Color<br>gray<br>**Type**<br>**STTB 2,5**<br>**Order No.**<br>**30 31 27 0**<br>Pcs<br>.<br>Pkt.<br>50<br>~~eee~~||||||
|for mounting on3||||||
||blue||**STTB 2,5 BU**|**30 31 28 3**|50|
|**Spring cage terminal**<br>**block,**|gray||**STTB 2,5-PV1)**|**30 31 53 9**|50|
|as above, but with||||||
|equipotential||||||
|bonding between the levels||||||



## **Accessories** ~~eee~~ 

|(1)**End cover**|gray||**D-STTB 2,5**||**30 30 45 9**|50|
|---|---|---|---|---|---|---|
|(2)**Insulating stop sleeve,**|||||||
|prevents unintentional clamping of insulation|prevents unintentional clamping of insulation||||||
|in the case of smaller cross sections|||||||
|Cross section<br>range:<br>0.2 mm2|white|me|**ISH 2,5/0,2**||**30 02 84 3**|50|
|0.25-0.5 mm2|gray||**ISH 2,5/0,5**||**30 02 85 6**|50|
|0.75-1.0 mm2|black||**ISH 2,5/1**||**30 02 86 9**|50|
|(3)**Plug-in bridge,**<br>for cross-connections in the|2-pos.|qm|**FBS 2-5**|Imax.: 20 A|**30 30 16 1**|10|
|terminal center|3-pos.||**FBS 3-5**|20 A|**30 30 17 4**|10|
||4-pos.||**FBS 4-5**|20 A|**30 30 18 7**|10|
||5-pos.||**FBS 5-5**|20 A|**30 30 19 0**|10|
||10-pos.||**FBS 10-5**|20 A|**30 30 21 3**|10|
||20-pos.||**FBS 20-5**|20 A|**30 30 22 6**|10|
|(4)**Partition plate**,<br>for visual and electrical separation|||**ATP-STTB 4**||**30 30 74 7**|50|
|of terminal groups, 2 mm thick|||||||
|(5)**Test adapter,**<br>for 4 mm Ø test adapter PS (seeinfo)|||**PAI 4**||**30 30 92 5**|10|
|and MC 4 connector,|||||||
|making contact in the bridge shaft|||||||
|(8)**Screwdriver,**<br>for actuating the tension spring|||**SZF 0 - 0,6 x 3,5**||**12 04 51 7**|10|



(5) **Test adapter,** for 4 mm Ø test adapter PS (see info) and MC 4 connector, making contact in the bridge shaft (8) **Screwdriver,** for actuating the tension spring 

_Phoenix Contact Elektronischer Katalog_ 

_**Page 1 / 2**_ 

_**19:02:55, Donnerstag, 28. Juni 2001**_ 

## _**Module no:3031270 LabelId:3031270 Operator:Phoenix**_ 

## (9) **Zack marker sheet,** 

flat, 100 or 120-section, for labeling the outer marker grooves 

**ZBFM 5** (see info) 

## (10) **Zack strip,** 

10-section, for labeling in the terminal center and on the plug-in bridges 

white **ZB 5** (see info) 

## **Technical data** ~~ee~~ 

|**Dimensions**|||
|---|---|---|
|Width / length / end cover width|[mm]|5.2 / 67.5 / 2.2|
|Height (NS 35:7.5 / NS 35:15)|[mm]|47.5 / 55|
|**Technical data in accordance with IEC / DIN VDE**|**Technical data in accordance with IEC / DIN VDE**||
|Maximum load current/<br>cross section|[A] / [mm2]|24 / 4|
|Rated surge voltage /<br>contamination class|[kV] / –|6 / 3|
|Surge voltage category /<br>insulation material group|– / –|III / I|
|**Connection capacity**|||
|Stranded with ferrule<br>with plastic sleeve|[mm2]|0.25 - 2.5|
|Stranded with ferrule<br>without plastic sleeve|[mm2]|0.25 - 2.5|
|Stranded with TWIN ferrule<br>with plastic sleeve|[mm2]|0.5|
|**Stripping length**|[mm]|10|
|**Internal cylindrical gauge (IEC 60 947-1)**||A 3|
|**Insulation material**||PA|
|Inflammability class acc. to UL 94||V0|



1) The max. load current must not be exceeded by the residual current of all connected conductors. 

_Phoenix Contact Elektronischer Katalog_ 

_**Page 2 / 2**_ 



## Links

- [View this product on Novapart](https://novapart.co/products/3031283/din-rail-mount-terminal-block-4-ways-28-awg-12-25)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/phoenix-contact/sttb-2-5-bu/dinrail-terminal-block-4way-12awg/dp/3241097)
---

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