# DIN Rail Mount Terminal Block, Knife Disconnect, 2 Ways, 28 AWG, 12 AWG, 2.5 mm², Clamp, 20 A

![Product image](https://novapart.co/image/farnell:3241050/)

**URL**: https://novapart.co/products/3037818/din-rail-mount-terminal-block-knife-disconnect-2
**SKU**: 3037818
**Manufacturer**: PHOENIX CONTACT
**Category**: Connectors || Terminal Blocks & Accessories || DIN Rail Terminal Blocks
**Price**: €3.1500
**Stock**: 10+
**Lead Time**: 36 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| No. Of Levels | 1 |
| Product Range | CLIPLINE ST |
| Rated Current | 20A |
| Rated Voltage | 400V |
| No. Of Positions | 2Ways |
| 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:3241050/)

## **Extract from the online catalog** 

## **ST 2,5-MT BU** 

## Order No.: 3037818 

The figure shows a version of the article 

http://catalog.phoenixcontact.net/phoenix/treeViewClick.do?UID=3037818 

Knife disconnect terminal block, Connection type: Spring-cage connection, Cross section: 0.08 mm² - 4 mm², AWG: 28 - 12, Nominal current: 20 A, Nominal voltage: 400 V, Length: 60.5 mm, Width: 5.2 mm, Color: blue, Assembly: NS 35/7,5, NS 35/15 

## Product notes 

**==> picture [277 x 146] intentionally omitted <==**

**----- Start of picture text -----**<br>
Commercial data<br>EAN AQUA<br>4 017918 908560<br> AUTTAT<br>sales group A640<br>Pack 50 Pcs.<br>Customs tariff 85369010<br>Gross weight in pieces 0.008045 KG<br>Net weight per piece 0.008029 KG<br>Catalog page information Page 248 (C-3-2013)<br>**----- End of picture text -----**<br>


WEEE/RoHS-compliant since: 01/01/2003 

## http:// 

www.download.phoenixcontact.com Please note that the data given here has been taken from the online catalog. For comprehensive information and data, please refer to the user documentation. The General Terms and Conditions of Use apply to Internet downloads. 

## **Technical data** 

## **General** 

|**General**||
|---|---|
|Number of levels|1|
|Number of connections|2|
|Color|blue|
|Insulating material|PA|



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ST 2,5-MT BU Order No.: 3037818 http://catalog.phoenixcontact.net/phoenix/treeViewClick.do?UID=3037818 

|Inflammability class according to UL 94|V0|
|---|---|
|**General**||
|Maximum load current|20 A (with 4 mm² conductor cross section)|
|Rated surge voltage|6 kV|
|Pollution degree|3|
|Surge voltage category|III|
|Insulating material group|I|
|Connection in acc. with standard|IEC 60947-7-1|
|Nominal current IN|20 A (the maximum load current must not be exceeded by the<br>total current of all connected conductors)|
|Nominal voltage UN|400 V|
|Open side panel|ja|
|**Dimensions**||
|Width|5.2 mm|
|Length|60.5 mm|
|Height NS 35/7,5|36.5 mm|
|Height NS 35/15|44 mm|
|**Connection data**||
|Conductor cross section solid min.|0.08 mm²|
|Conductor cross section solid max.|4 mm²|
|Conductor cross section stranded min.|0.08 mm²|
|Conductor cross section stranded max.|2.5 mm²|
|Conductor cross section AWG/kcmil min.|28|
|Conductor cross section AWG/kcmil max|12|
|Conductor cross section stranded, with ferrule<br>without plastic sleeve min.|0.14 mm²|
|Conductor cross section stranded, with ferrule<br>without plastic sleeve max.|2.5 mm²|
|Conductor cross section stranded, with ferrule<br>with plastic sleeve min.|0.14 mm²|
|Conductor cross section stranded, with ferrule<br>with plastic sleeve max.|2.5 mm²|
|2 conductors with same cross section, stranded,<br>TWIN ferrules with plastic sleeve, max.|0.5 mm²|
|Connection method|Spring-cage connection|
|Minimum stripping length|8 mm|



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ST 2,5-MT BU Order No.: 3037818 

http://catalog.phoenixcontact.net/phoenix/treeViewClick.do?UID=3037818 

Maximum stripping length 10 mm Internal cylindrical gage A3 ~~ee~~ 

## **Certificates / Approvals** ~~eee~~ GWAW & & 

Certification CSA, cULus Recognized, GOST 

Certifications applied for: 

Certification Ex: 

## **Accessories** ~~LSS~~ 

|3030789<br>~~Oo~~|ATP-ST-TWIN<br>~~Oo~~|Partition plate, Length: 76.6 mm, Width: 2 mm, Height: 45 mm,<br>Color: gray|
|---|---|---|
|0801704<br>~~Oo~~<br>~~PF~~|NS 35/ 7,5 AL UNPERF<br>2000MM<br>~~Oo~~<br>~~PF~~|DIN rail, unperforated, Width: 35 mm, Height: 7.5 mm,<br>Length: 2000 mm, Color: silver|
|1206560<br>~~PF~~<br>~~OoOoOo~~|NS 35/ 7,5 CAP<br>~~PF~~<br>~~OoOoOo~~|DIN rail end piece, for DIN rail NS 35/7.5|
|0801762<br>~~PF~~<br>~~OoOoOo~~|NS 35/ 7,5 CU UNPERF<br>2000MM<br>~~PF~~<br>~~OoOoOo~~|DIN rail, material: Copper, unperforated, height 7.5 mm, width 35<br>mm, length: 2 m|
|0801733<br>~~OoOoOo~~|NS 35/ 7,5 PERF 2000MM<br>~~OoOoOo~~|DIN rail, material: steel galvanized and passivated with a thick<br>layer, perforated, height 7.5 mm, width 35 mm, length: 2000 mm|
|0801681<br>~~OoOoOo~~<br>~~Pp~~|NS 35/ 7,5 UNPERF 2000MM<br>~~OoOoOo~~<br>~~Pp~~|DIN rail, material: Steel, unperforated, height 7.5 mm, width 35<br>mm, length: 2 m|
|1204119<br>~~OoOoOo~~<br>~~Pp~~<br>~~Oo~~|NS 35/ 7,5 WH PERF 2000MM<br>~~OoOoOo~~<br>~~Pp~~<br>~~Oo~~|DIN rail 35 mm (NS 35)<br>|
|1204122<br>~~Pp~~<br>~~OoOoOo~~|NS 35/ 7,5 WH UNPERF<br>2000MM<br>~~Pp~~<br>~~OoOoOo~~|DIN rail 35 mm (NS 35)<br>|
|1206421<br>~~OoOoOo~~|NS 35/ 7,5 ZN PERF 2000MM<br>~~OoOoOo~~|DIN rail, material: Galvanized, perforated, height 7.5 mm, width 35<br>mm, length: 2 m<br>|
|1206434<br>~~OoOo~~|NS 35/ 7,5 ZN UNPERF<br>2000MM<br>~~OoOo~~|DIN rail, material: Galvanized, unperforated, height 7.5 mm, width<br>35 mm, length: 2 m<br>|



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ST 2,5-MT BU Order No.: 3037818 http://catalog.phoenixcontact.net/phoenix/treeViewClick.do?UID=3037818 

|3030187|FBS 4-5|Plug-in bridge, Number of positions: 4, Color: red|
|---|---|---|
|3030190|FBS 5-5|Plug-in bridge, Number of positions: 5, Color: red|
|3030213|FBS 10-5|Plug-in bridge, Number of positions: 10, Color: red|
|3030226|FBS 20-5|Plug-in bridge, Number of positions: 20, Color: red|
|3038930|FBS 50-5|Plug-in bridge, Number of positions: 50, Color: red|
|3033702|FBSR 2-5|Plug-in bridge, Number of positions: 2, Color: red|
|3033710|FBSR 10-5|Plug-in bridge, Number of positions: 10, Color: red|
|3001591|FBSR 3-5|Plug-in bridge, Number of positions: 3, Color: red|
|3001592|FBSR 4-5|Plug-in bridge, Number of positions: 4, Color: red|
|3001593|FBSR 5-5|Plug-in bridge, Number of positions: 5, Color: red|
|**Connector/Adapter**|||
|3002843|ISH 2,5/0,2|Insulating sleeve, Color: white|
|3002856|ISH 2,5/0,5|Insulating sleeve, Color: gray|
|3002869|ISH 2,5/1,0|Insulating sleeve, Color: black|
|3030983|PS-5|Test plugs, Color: red|
|3038723|PS-5/2,3MM RD|Test plugs, Color: red|
|**Covers**|||
|3030488|D-ST 2,5-TWIN|End cover, Length: 60.5 mm, Width: 2.2 mm, Height: 29 mm,<br>Color: gray|
|3030512|D-ST 2,5-TWIN-0,8 OG|End cover, Length: 60.5 mm, Width: 0.8 mm, Height: 29 mm,<br>Color: orange|
|3036725|DP PS-5|Spacer plate, Color: red|
|**General**|||
|3035980|PAI-4-FIX-5/6 BK|Test adapter, for 4 mm Ø safety test plugs, latches into the bridge<br>shaft; color: Black|
|3035981|PAI-4-FIX-5/6 BN|Test adapter, for 4 mm Ø safety test plugs, latches into the bridge<br>shaft; color: Brown|
|3035975|PAI-4-FIX-5/6 BU|Test adapter, for 4 mm Ø safety test plugs, latches into the bridge<br>shaft; color: Blue|
|3035978|PAI-4-FIX-5/6 GN|Test adapter, for 4 mm Ø safety test plugs, latches into the bridge<br>shaft; color: Green|
|3035982|PAI-4-FIX-5/6 GY|Test adapter, for 4 mm Ø safety test plugs, latches into the bridge<br>shaft; color: Gray|
|3035974|PAI-4-FIX-5/6 OG|Test adapter, for 4 mm Ø safety test plugs, latches into the bridge<br>shaft; color: Orange|
|3035976|PAI-4-FIX-5/6 RD|Test adapter, for 4 mm Ø safety test plugs, latches into the bridge<br>shaft; color: Red|



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|3035979|PAI-4-FIX-5/6 VT|Test adapter, for 4 mm Ø safety test plugs, latches into the bridge<br>shaft; color: Violet|
|---|---|---|
|3035977|PAI-4-FIX-5/6 YE|Test adapter, for 4 mm Ø safety test plugs, latches into the bridge<br>shaft; color: Yellow|
|3039900|ST-IL|Operating decal for the ST terminal block|
|**Marking**|||
|0818108|UC-TM 5|Marker for terminal blocks, Sheet, white, unlabeled, can be<br>labeled with: BLUEMARK CLED, BLUEMARK LED, Plotter,<br>Mounting type: Snap into tall marker groove, for terminal block<br>width: 5.2 mm, Lettering field: 10.5 x 4.6 mm|
|0824581|UC-TM 5 CUS|Marker for terminal blocks, can be ordered: by sheet, white,<br>labeled according to customer specifications, Mounting type: Snap<br>into tall marker groove, for terminal block width: 5.2 mm, Lettering<br>field: 10.5 x 4.6 mm|
|0818153|UC-TMF 5|Marker for terminal blocks, Sheet, white, unlabeled, can be<br>labeled with: BLUEMARK CLED, BLUEMARK LED, Plotter,<br>Mounting type: Snap into flat marker groove, for terminal block<br>width: 5.2 mm, Lettering field: 4.6 x 5.1 mm|
|0824638|UC-TMF 5 CUS|Marker for terminal blocks, can be ordered: by sheet, white,<br>labeled according to customer specifications, Mounting type: Snap<br>into flat marker groove, for terminal block width: 5.2 mm, Lettering<br>field: 4.6 x 5.1 mm|
|0828734|UCT-TM 5|Marker for terminal blocks, Sheet, white, unlabeled, can be<br>labeled with: THERMOMARK CARD, BLUEMARK CLED,<br>BLUEMARK LED, Mounting type: Snap into tall marker groove, for<br>terminal block width: 5.2 mm, Lettering field: 4.6 x 10.5 mm|
|0829595|UCT-TM 5 CUS|Marker for terminal blocks, can be ordered: by sheet, white,<br>labeled according to customer specifications, Mounting type: Snap<br>into tall marker groove, Lettering field: 4.6 x 10.5 mm|
|0828744|UCT-TMF 5|Marker for terminal blocks, Sheet, white, unlabeled, can be<br>labeled with: THERMOMARK CARD, BLUEMARK CLED,<br>BLUEMARK LED, Mounting type: Snap into flat marker groove, for<br>terminal block width: 5.2 mm, Lettering field: 4.4 x 4.7 mm|
|0829658|UCT-TMF 5 CUS|Marker for terminal blocks, can be ordered: by sheet, white,<br>labeled according to customer specifications, Mounting type: Snap<br>into flat marker groove, for terminal block width: 5.2 mm, Lettering<br>field: 4.4 x 4.7 mm|
|3030941|WST 2,5|Warning cover, 5-pos., for terminal width: 5.2 mm|
|1050004|ZB 5 :UNBEDRUCKT|Zack marker strip, Strip, white, unlabeled, can be labeled with:<br>Plotter, Mounting type: Snap into tall marker groove, for terminal<br>block width: 5.2 mm, Lettering field: 5.1 x 10.5 mm|
|0824962|ZB 5 CUS|Zack marker strip, can be ordered: Strip, white, labeled according<br>to customer specifications, Mounting type: Snap into tall marker<br>groove, for terminal block width: 5.2 mm, Lettering field: 5.15 x<br>10.5 mm|



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|1050017|ZB 5,LGS:FORTL.ZAHLEN|Zack marker strip, Strip, white, labeled, Printed<br>horizontally: Consecutive numbers 1 - 10, 11 - 20, etc. up to 491<br>- 500, Mounting type: Snap into tall marker groove, for terminal<br>block width: 5.2 mm, Lettering field: 5.15 x 10.5 mm|
|---|---|---|
|1050033|ZB 5,LGS:GLEICHE ZAHLEN|Zack marker strip, Strip, white, labeled, can be labeled with:<br>Plotter, Printed horizontally: Identical numbers 1 or 2, etc. up to<br>100, Mounting type: Snap into tall marker groove, for terminal<br>block width: 5.2 mm, Lettering field: 5.15 x 10.5 mm|
|1050415|ZB 5,LGS:L1-N,PE|Marker for terminal blocks, Strip, white, labeled, Horizontal: L1,<br>L2, L3, N, PE, L1, L2, L3, N, PE, Mounting type: Snap into tall<br>marker groove, for terminal block width: 5.2 mm, Lettering field:<br>5.15 x 10.5 mm|
|1050020|ZB 5,QR:FORTL.ZAHLEN|Zack marker strip, Strip, white, labeled, can be labeled with:<br>Plotter, Printed vertically: Consecutive numbers 1 - 10, 11 - 20,<br>etc. up to 491 - 500, Mounting type: Snap into tall marker groove,<br>for terminal block width: 5.2 mm, Lettering field: 5.15 x 10.5 mm|
|0825025|ZBF 5 CUS|Zack Marker strip, flat, can be ordered: Strip, white, labeled<br>according to customer specifications, Mounting type: Snap into flat<br>marker groove, for terminal block width: 5 mm, Lettering field: 5.15<br>x 5.15 mm|
|0808671|ZBF 5,LGS:FORTL.ZAHLEN|Zack Marker strip, flat, Strip, white, labeled, Printed<br>horizontally: Consecutive numbers 1 - 10, 11 - 20, etc. up to 491<br>- 500, Mounting type: Snap into flat marker groove, for terminal<br>block width: 5 mm, Lettering field: 5.15 x 5.15 mm|
|0810821|ZBF 5,LGS:GERADE ZAHLEN|Zack Marker strip, flat, Strip, white, labeled, Printed<br>horizontally: Consecutive numbers 2 - 20, 22 - 40, etc. up to 82<br>- 100, Mounting type: Snap into flat marker groove, for terminal<br>block width: 5 mm, Lettering field: 5.15 x 5.15 mm|
|0810863|ZBF 5,LGS:UNGERADE<br>ZAHLEN|Zack Marker strip, flat, Strip, white, labeled, Printed<br>horizontally: Odd numbers 1 - 19, 21 - 39, etc. up to 81 - 99,<br>Mounting type: Snap into flat marker groove, for terminal block<br>width: 5 mm, Lettering field: 5.15 x 5.15 mm|
|0808697|ZBF 5,QR:FORTL.ZAHLEN|Zack Marker strip, flat, Strip, white, labeled, Printed<br>vertically: Consecutive numbers 1 - 10, 11 - 20, etc. up to 91 -<br>100, Mounting type: Snap into flat marker groove, for terminal<br>block width: 5 mm, Lettering field: 5.15 x 5.15 mm|
|0808642|ZBF 5:UNBEDRUCKT|Zack Marker strip, flat, Strip, white, unlabeled, can be labeled with:<br>Plotter, Mounting type: Snap into flat marker groove, for terminal<br>block width: 5 mm, Lettering field: 5.1 x 5.2 mm|
|**Tools**|||
|1204517|SZF 1-0,6X3,5|Actuation tool, for ST terminal blocks, also suitable for use as a<br>bladed screwdriver, size: 0.6 x 3.5 x 100 mm, 2-component grip,<br>with non-slip grip|



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ST 2,5-MT BU Order No.: 3037818 http://catalog.phoenixcontact.net/phoenix/treeViewClick.do?UID=3037818 

## **Drawings** 

Circuit diagram 

PHOENIX CONTACT Deutschland GmbH http://www.phoenixcontact.com 

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ST 2,5-MT BU Order No.: 3037818 http://catalog.phoenixcontact.net/phoenix/treeViewClick.do?UID=3037818 

## **Address** 

PHOENIX CONTACT Deutschland GmbH Flachsmarktstr. 8 32825 Blomberg,Germany Phone +49 5235 3 12000 Fax +49 5235 3 41200 http://www.phoenixcontact.com 

© 2014 Phoenix Contact Technical modifications reserved; 

PHOENIX CONTACT Deutschland GmbH http://www.phoenixcontact.com 

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## Links

- [View this product on Novapart](https://novapart.co/products/3037818/din-rail-mount-terminal-block-knife-disconnect-2)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/phoenix-contact/st-2-5-mt-bu/dinrail-terminal-block-2way-12awg/dp/3241050)
---

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