2903583

EXTENSION MODULE, 6A, 250VAC/VDC

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.

Manufacturer: PHOENIX CONTACT
Product type: Controller Accessories
SVHC: Lead (04-Feb-2026)
Product Range: -
Current Rating: 6A

Delivery and price
Units per pack	1
Price	157.75 €
Current stock	10+
Lead time	30 days

Datasheet

https://www.phoenixcontact.com/gb/products/2903583 

## Extension module - PSR-SCP-24DC/URML4/3X1/1X2/B - 2903583 

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's documentation. Our General Terms of Use for Downloads are valid 

(http://phoenixcontact.com/download) 

Single or two-channel contact extension for OSSD signals (e.g., light grid), 3 N/O contacts, 1 N/C contact, up to Cat. 4 PL e according to EN ISO 13849, SIL 3 according to EN 62061, plug-in screw terminal blocks, width: 22.5 mm 

## Product Description 

The contact extension device is specifically designed for use in conjunction with electrosensitive protective equipment such as light grids. These systems generally have clocked OSSD signals which enable cross circuits in the cabling to be detected. The relay is resistant to the test pulses generated by the electrosensitive protective equipment receiver. Applications up to PL e or SIL 3 can therefore be implemented without the need for additional traceability to the device on the EDM circuit. 

## Key Commercial Data 

Packing unit 1 pc ~~es~~ GTIN 046356'751698 ~~I~~ GTIN 4046356751698 ~~Pe~~ Weight per Piece (excluding packing) 210.900 g ~~[fo~~ Custom tariff number 85371098 ~~[Po |~~ Country of origin Germany ~~Po~~ 

## Technical data 

## Note 

EMC: class A product, see manufacturer's declaration in the download Utilization restriction area 

## Dimensions 

|Width|22.5 mm|
|---|---|
|Height|99 mm|
|Depth|114.5 mm|
|Ambient conditions||
|Ambient temperature (operation)|-20 °C ... 55 °C|
|Ambient temperature (storage/transport)|-40 °C ... 70 °C|



## Ambient conditions 

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## Extension module - PSR-SCP-24DC/URML4/3X1/1X2/B - 2903583 

## Technical data 

Ambient conditions 

|Contact type|3 enabling current paths|
|---|---|
||1 signaling current path|
|Contact material|AgSnO2|
|Maximum switching voltage|250 V AC/DC|
|Minimum switching voltage|15 V AC/DC|
|Limiting continuous current|6 A (N/C contact / N/O contact)|
|Maximum inrush current|6 A|
|Inrush current, minimum|25 mA|
|Sq. Total current|72 A<br>2(ITH<br>2= I1<br>2+ I2<br>2+ I3<br>2)|
|Interrupting rating (ohmic load) max.|144 W (24 V DC, τ = 0 ms)|
||288 W (48 V DC, τ = 0 ms)|
||77 W (110 V DC, τ = 0 ms)|
||88 W (220 V DC, τ = 0 ms)|
||1500 VA (250 V AC, τ = 0 ms)|
|Maximum interrupting rating (inductive load)|48 W (24 V DC, τ = 40 ms)|
||40 W (48 V DC, τ = 40 ms)|
||35 W (110 V DC, τ = 40 ms)|
||33 W (220 V DC, τ = 40 ms)|
|Switching capacity min.|0.4 W|
|Mechanical service life|approx. 10<br>7cycles|
|Switching capacity (360/h cycles)|6 A (24 V DC)|
||5 A (230 V AC)|
|Output fuse|10 A gL/gG NEOZED (N/O contact)|
||4 A gL/gG NEOZED (Signaling current path)|



General 

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https://www.phoenixcontact.com/gb/products/2903583 

## Extension module - PSR-SCP-24DC/URML4/3X1/1X2/B - 2903583 

## Technical data 

## General 

|Relay type|Electromechanical relay with forcibly guided contacts in accordance with<br>EN 50205|
|---|---|
|Nominal operating mode|100% operating factor|
|Net weight|210.9 g|
|Mounting position|any|
|Mounting type|DIN rail mounting|
|Degree of protection|IP20|
||IP54|
|Min. degree of protection of inst. location|IP54|
|Housing material|Polyamide PA non-reinforced|
|Housing color|yellow|
|Connection data||
|Connection method<br>Screw connection<br>pluggable<br>Yes<br>Conductor cross section solid min.<br>0.2 mm²<br>Conductor cross section solid max.<br>2.5 mm²<br>Conductor cross section flexible min.<br>0.2 mm²<br>Conductor cross section flexible max.<br>2.5 mm²<br>Conductor cross section AWG min.<br>24<br>Conductor cross section AWG max.<br>12<br>Stripping length<br>7 mm<br>Screw thread<br>M3<br>~~SS~~||
|Safety-related characteristic data||
|Stop category<br>0<br>Designation<br>IEC 61508 - High demand<br>Safety Integrity Level (SIL)<br>3<br>Designation<br>IEC 61508 - Low demand<br>Safety Integrity Level (SIL)<br>3<br>Designation<br>EN ISO 13849<br>Performance level (PL)<br>e<br>Category<br>4<br>Designation<br>EN 62061<br>Safety Integrity Level Claim Limit (SIL CL)<br>3<br>~~SS~~||
|Standards and Regulations||
|Designation<br>Air clearances and creepage distances between the power circuits<br>Standards/regulations<br>DIN EN 50178/VDE 0160<br>Rated insulation voltage<br>250 V<br>Rated surge voltage/insulation<br>4 kV / Basic isolation, (safe isolation, reinforced insulation and 6 kV<br>between input circuit and enabling current paths.)<br>Degree of pollution<br>2<br>~~==~~||
||02/27/2020   Page 3 / 7|



https://www.phoenixcontact.com/gb/products/2903583 

## Extension module - PSR-SCP-24DC/URML4/3X1/1X2/B - 2903583 

## Technical data 

## Standards and Regulations 

|Overvoltage category|III|
|---|---|
|Shock|15g|
|Vibration (operation)|10 Hz ... 150 Hz, 2g|



|REACh SVHC|Lead 7439-92-1|
|---|---|
|China RoHS|Environmentally Friendly Use Period = 50|
||For details about hazardous substances go to tab “Downloads”,<br>Category “Manufacturer's declaration”|



## Drawings 

## Application drawing 

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https://www.phoenixcontact.com/gb/products/2903583 

## Extension module - PSR-SCP-24DC/URML4/3X1/1X2/B - 2903583 

Circuit diagram 

## Classifications 

## eCl@ss 

|eCl@ss 4.0|eCl@ss 4.0|40020600|
|---|---|---|
|eCl@ss 4.1|eCl@ss 4.1|40020600|
|eCl@ss 5.0|eCl@ss 5.0|27371900|
|eCl@ss 5.1|eCl@ss 5.1|27371900|
|eCl@ss 6.0|eCl@ss 6.0|27371800|
|eCl@ss 7.0|eCl@ss 7.0|27371819|
|eCl@ss 8.0|eCl@ss 8.0|27371819|
|eCl@ss 9.0|eCl@ss 9.0|27371819|



## ETIM 

|ETIM 3.0|ETIM 3.0|EC001449|
|---|---|---|
|ETIM 4.0|ETIM 4.0|EC001449|
|ETIM 5.0|ETIM 5.0|EC001449|
|ETIM 6.0|ETIM 6.0|EC001449|
|ETIM 7.0|ETIM 7.0|EC001449|



## UNSPSC 

|UNSPSC 6.01|UNSPSC 6.01|30211901|
|---|---|---|
|UNSPSC 7.0901|UNSPSC 7.0901|39121501|
|UNSPSC 11|UNSPSC 11|39121501|



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https://www.phoenixcontact.com/gb/products/2903583 

## Extension module - PSR-SCP-24DC/URML4/3X1/1X2/B - 2903583 

## Classifications 

## UNSPSC 

|UNSPSC 12.01|UNSPSC 12.01|39121501|
|---|---|---|
|UNSPSC 13.2|UNSPSC 13.2|39121501|
|UNSPSC 18.0|UNSPSC 18.0|39122205|
|UNSPSC 19.0|UNSPSC 19.0|39122205|
|UNSPSC 20.0|UNSPSC 20.0|39122205|
|UNSPSC 21.0|UNSPSC 21.0|39122205|



## Approvals 

## Approvals 

## Approvals 

UL Listed / cUL Listed / Functional Safety / Functional Safety / Functional Safety / UL Listed / cUL Listed / Functional Safety / EAC / EAC 

## Ex Approvals 

Approval details 

UL Listed http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 140324  ~~oe~~ cUL Listed http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 140324  Functional Safety 01/205/5265.01/17  Functional Safety 968/EZ409.02/17  ~~oe~~ Functional Safety 968/EZ409.02/17  ~~oo~~ 

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https://www.phoenixcontact.com/gb/products/2903583 

## Extension module - PSR-SCP-24DC/URML4/3X1/1X2/B - 2903583 

Approvals 

UL Listed http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 140324  ~~oo~~ cUL Listed http://database.ul.com/cgi-bin/XYV/template/LISEXT/1FRAME/index.htm FILE E 140324  Functional Safety 01/205/5265.01/17  ~~ee~~ RU C- EAC DE.A*30.B.01082  ~~oo~~ RU C- EAC DE.A*30.B.01082  ~~———~~ Phoenix Contact 2020 © - all rights reserved http://www.phoenixcontact.com 

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Updated at April 11, 2026

Phoenix Contact is a global leader in industrial connection technology, automation systems, and electronic interface solutions. With decades of engineering heritage originating in Germany, the company develops robust components designed to ensure reliable power, data, and signal transmission across demanding manufacturing and industrial environments. The cornerstone of the Phoenix Contact portfolio is its industry-leading selection of connection technologies. The range features an exceptional variety of terminal blocks, including pluggable headers and sockets, highly reliable wire-to-board solutions, and versatile DIN rail terminal blocks. These foundational connectivity components are supported by a comprehensive ecosystem of power distribution blocks, interface modules, marking systems, and accessories engineered for seamless control cabinet wiring. Beyond physical connectivity, Phoenix Contact provides critical components for advanced automation, control, and system protection. The wider offering encompasses a broad spectrum of process controllers, high-efficiency AC/DC converters, and a comprehensive suite of power, safety, and solid-state relays. From precision signal converters and electronic circuit breakers to fiber optic cable assemblies, Phoenix Contact equips engineers with the high-performance technologies required to build secure, highly efficient, and future-ready industrial systems.

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