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

![Product image](https://novapart.co/image/farnell:4914912/)

**URL**: https://novapart.co/products/3040054/din-rail-mount-terminal-block-grey-4-ways-28-awg
**SKU**: 3040054
**Manufacturer**: PHOENIX CONTACT
**Category**: Connectors || Terminal Blocks & Accessories || DIN Rail Terminal Blocks
**Price**: €2.4600
**Stock**: 100+
**Lead Time**: 36 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (04-Feb-2026) |
| No. Of Levels | 2 |
| Product Range | - |
| Rated Current | 22A |
| Rated Voltage | 500V |
| No. Of Positions | 4Ways |
| Wire Size Awg Max | 12AWG |
| Wire Size Awg Min | 28AWG |
| Conductor Area Csa | 4mm² |
| Wire Connection Method | Clamp |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4914912/)

## STTB 2,5/2P - Double-level terminal block 

3040054 

https://www.phoenixcontact.com/gb/products/3040054 

Please be informed that the data shown in this PDF document is generated from our online catalog. Please find the complete data in the user documentation. Our general terms of use for downloads are valid. 

Double-level terminal block, Current and voltage are determined by the plug used., nom. voltage: 500 V, nominal current: 22 A, connection method: Spring-cage/plug-in connection, 1st and 2nd level connection left, Rated cross section: 2.5 mm[2] , cross section: 0.08 mm[2] - 4 mm[2] , 1st and 2nd level connection right, mounting type: NS 35/15, NS 35/7,5, color: gray 

## Your advantages 

- Tested for railway applications 

- Potential routing on two levels 

## Commercial data 

|Item number|3040054|
|---|---|
|Packing unit|50 pc|
|Minimum order quantity|50 pc|
|Sales key|BE2141|
|Product key|BE2141|
|GTIN|4017918832650|
|Weight per piece (including packing)|9.95 g|
|Weight per piece (excluding packing)|9.89 g|
|Customs tariff number|85369010|
|Country of origin|PL|



## STTB 2,5/2P - Double-level terminal block 

3040054 

https://www.phoenixcontact.com/gb/products/3040054 

## Technical data 

## Notes 

General Current and voltage are determined by the plug used. 

## Product properties 

|Product type|Plug-in terminal block|
|---|---|
|Product family|STTB|
|Area of application|Railway industry|
||Machine building|
||Plant engineering|
|Number of connections|4|
|Number of rows|2|
|Potentials|2|
|Insulation characteristics||
|Overvoltage category|III|
|Degree of pollution|3|
|ectrical properties||
|Rated surge voltage|6 kV|
|Maximum power dissipation for nominal condition|0.77 W|



## Electrical properties 

## Connection data 

Number of connections per level 2 Nominal cross section 2.5 mm² 

1st and 2nd level connection left Connection method Spring-cage/plug-in connection Stripping length 8 mm ... 10 mm Internal cylindrical gage A3 Connection in acc. with standard IEC 61984 Conductor cross-section rigid 0.08 mm² ... 4 mm² Cross section AWG 28 ... 12 (converted acc. to IEC) Conductor cross-section flexible 0.08 mm² ... 2.5 mm² Conductor cross-section, flexible [AWG] 28 ... 14 (converted acc. to IEC) Conductor cross-section flexible (ferrule without plastic sleeve) 0.14 mm² ... 2.5 mm² Flexible conductor cross-section (ferrule with plastic sleeve) 0.14 mm² ... 2.5 mm² 2 conductors with the same cross section, flexible, with TWIN 0.5 mm² ferrule with plastic sleeve 

Nominal cross section 2.5 mm² Nominal current 22 A Maximum load current 22 A (with 4 mm² conductor cross-section) Nominal voltage 500 V 

Mar 27, 2026, 10:17�AM     Page 2 (11) 

## STTB 2,5/2P - Double-level terminal block 

3040054 

https://www.phoenixcontact.com/gb/products/3040054 

## Dimensions 

|Dimensional drawing||
|---|---|
||;|
||f|
||i|
|Width|5.2 mm|
|End cover width|2.2 mm|
|Height|71.5 mm|
|Depth on NS 35/7,5|47.5 mm|
|Depth on NS 35/15|55 mm|



## Material specifications 

|Color|gray (RAL 7042)|
|---|---|
|Flammability rating according to UL 94|V0|
|Insulating material group|I|
|Insulating material|PA|
|Static insulating material application in cold|-60 °C|
|Temperature index of insulation material (DIN EN 60216-1 (VDE|130 °C|
|0304-21))||
|Relative insulation material temperature index (Elec., UL 746 B)|130 °C|
|Fire protection for rail vehicles (DIN EN 45545-2) R22|HL 1 - HL 3|
|Fire protection for rail vehicles (DIN EN 45545-2) R23|HL 1 - HL 3|
|Fire protection for rail vehicles (DIN EN 45545-2) R24|HL 1 - HL 3|
|Fire protection for rail vehicles (DIN EN 45545-2) R26|HL 1 - HL 3|
|Calorimetric heat release NFPA 130 (ASTM E 1354)|28 MJ/kg|
|Surface flammability NFPA 130 (ASTM E 162)|passed|
|Specific optical density of smoke NFPA 130 (ASTM E 662)|passed|
|Smoke gas toxicity NFPA 130 (SMP 800C)|passed|



## Electrical tests 

|Surge voltage test||
|---|---|
|Test voltage setpoint|7.3 kV|
|Result|Test passed|
|Short-time withstand current 2.5 mm²|0.3 kA|
|Result|Test passed|
|Power-frequency withstand voltage||
|Test voltage setpoint|1.89 kV|
|Result|Test passed|



## Mechanical properties 

## STTB 2,5/2P - Double-level terminal block 

3040054 

https://www.phoenixcontact.com/gb/products/3040054 

## Mechanical data 

Open side panel Yes 

## Mechanical tests 

Attachment on the carrier 

DIN rail/fixing support NS 35 Test force setpoint 1 N Result Test passed 

## Environmental and real-life conditions 

## Needle-flame test 

Time of exposure 30 s Result Test passed 

## Oscillation/broadband noise 

|Specification|DIN EN 50155 (VDE 0115-200):2008-03|
|---|---|
|Spectrum|Long life test category 1, class B, body mounted|
|Frequency|f1= 5 Hz to f2= 150 Hz|
|ASD level|0.964 (m/s²)²/Hz|
|Acceleration|0.58g|
|Test duration per axis|5 h|
|Test directions|X-, Y- and Z-axis|
|Result|Test passed|
|Shocks||
|Specification|DIN EN 50155 (VDE 0115-200):2008-03|
|Pulse shape|Half-sine|
|Acceleration|5g|
|Shock duration|30 ms|
|Number of shocks per direction|3|
|Test directions|X-, Y- and Z-axis (pos. and neg.)|
|Result|Test passed|



|Ambient conditions||
|---|---|
|Ambient temperature (operation)|-60 °C ... 100 °C (max. operating temperature range including|
||self-heating, see derating curve)|
|Ambient temperature (storage/transport)|-25 °C ... 60 °C (for a short time, not exceeding 24 h, -60 °C to|
||+70 °C)|
|Ambient temperature (assembly)|-5 °C ... 70 °C|
|Ambient temperature (actuation)|-5 °C ... 70 °C|
|Permissible humidity (operation)|20 % ... 90 %|
|Permissible humidity (storage/transport)|30 % ... 70 %|



## Standards and regulations 

Connection in acc. with standard 

IEC 61984 

Mar 27, 2026, 10:17�AM     Page 4 (11) 

## STTB 2,5/2P - Double-level terminal block 

3040054 

https://www.phoenixcontact.com/gb/products/3040054 

## Mounting 

|Mounting type|NS 35/15|
|---|---|
||NS 35/7,5|



Mar 27, 2026, 10:17�AM     Page 5 (11) 

## STTB 2,5/2P - Double-level terminal block 

3040054 

https://www.phoenixcontact.com/gb/products/3040054 

## Drawings 

Dimensional drawing 

**==> picture [410 x 566] intentionally omitted <==**

**----- Start of picture text -----**<br>
74<br>Diagram<br>25<br>20<br>15<br>�<br>10<br>= 2-pos.<br>= 5-pos.<br>5<br>= 10-pos.<br>� = 15-pos.<br>0<br>0 20 40 60 80 100 120<br>Ambient temperature [°C]<br>Maximum load current [A]<br>72<br>59,5<br>**----- End of picture text -----**<br>


Applies to all male connector variants SP... . 

Mar 27, 2026, 10:17�AM     Page 6 (11) 

## STTB 2,5/2P - Double-level terminal block 

3040054 

https://www.phoenixcontact.com/gb/products/3040054 

Circuit diagram 

**==> picture [347 x 184] intentionally omitted <==**

Mar 27, 2026, 10:17�AM     Page 7 (11) 

## STTB 2,5/2P - Double-level terminal block 

3040054 

https://www.phoenixcontact.com/gb/products/3040054 

## Approvals 

To download certificates, visit the product detail page: https://www.phoenixcontact.com/gb/products/3040054 

||CSA<br>Approval ID: 13631|||||
|---|---|---|---|---|---|
|||Nominal voltage UN|Nominal current IN|Cross section AWG|Cross section mm2|
|B||||||
|||300 V|20 A|28 - 12|-|
|C||||||
|||300 V|20 A|28 - 12|-|
|D||||||
|||600 V|5 A|28 - 12|-|
|||||||
||IECEE CB Scheme<br>Approval ID: DE1-62736/B1/B2|||||
|||||||
||EAC<br>Approval ID: RU C-DE.BL08.B.00644|||||
|||||||
||VDE Zeichengenehmigung<br>Approval ID: 40019518|||||
|||Nominal voltage UN|Nominal current IN|Cross section AWG|Cross section mm2|
|keine||||||
|Only flexible||500 V|-|-|0.2 - 2.5|
|conductors||||||
|Only rigid||500 V|-|-|0.2 - 4|
|conductors||||||



||cULus Recognized<br>Approval ID: E60425||||
|---|---|---|---|---|
||Nominal voltage UN|Nominal current IN|Cross section AWG|Cross section mm2|
|B|||||
||300 V|20 A|28 - 12|-|
|C|||||
||300 V|20 A|28 - 12|-|
|D|||||
||600 V|5 A|28 - 12|-|



DNV Approval ID: TAE00001CS 

Mar 27, 2026, 10:17�AM     Page 8 (11) 

## STTB 2,5/2P - Double-level terminal block 

3040054 

https://www.phoenixcontact.com/gb/products/3040054 

 

EAC Approval ID: KZ7500651131219505 

Mar 27, 2026, 10:17�AM     Page 9 (11) 

## STTB 2,5/2P - Double-level terminal block 

3040054 

https://www.phoenixcontact.com/gb/products/3040054 

## Classifications 

|ECLASS|ECLASS||
|---|---|---|
||ECLASS-13.0|27250117|
||ECLASS-15.0|27250117|
|ETIM|||
||ETIM 10.0|EC000897|
|UNSPSC|||
||UNSPSC 21.0|39121400|



Mar 27, 2026, 10:17�AM     Page 10 (11) 

## STTB 2,5/2P - Double-level terminal block 

3040054 

https://www.phoenixcontact.com/gb/products/3040054 

## Environmental product compliance 

## EU RoHS 

Fulfills EU RoHS substance requirements Yes, No exemptions Environment friendly use period (EFUP) EFUP-E No hazardous substances above the limits 

## China RoHS 

## EU REACH SVHC 

REACH candidate substance (CAS No.) 

No substance above 0.1 wt% 

EF3.1 Climate Change CO2e kg 0.046 kg CO2e 

Phoenix Contact 2026 © - all rights reserved https://www.phoenixcontact.com 

PHOENIX CONTACT Ltd Halesfield 13, Telford Shropshire, TF7 4PG 01952 681700 info@phoenixcontact.co.uk 

Mar 27, 2026, 10:17�AM     Page 11 (11) 



## Links

- [View this product on Novapart](https://novapart.co/products/3040054/din-rail-mount-terminal-block-grey-4-ways-28-awg)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/phoenix-contact/3040054/terminal-block-4pos-2level-22a/dp/4914912)
---

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