# Safety Relay, 24 VDC, SPST-NO, PSRmini Series, DIN Rail, 6 A, Screw

![Product image](https://novapart.co/image/farnell:3256064/)

**URL**: https://novapart.co/products/2904952/safety-relay-24-vdc-spst-no-psrmini-series-din
**SKU**: 2904952
**Manufacturer**: PHOENIX CONTACT
**Category**: Switches & Relays || Relays || Safety Relays
**Price**: €135.7900
**Stock**: 10+
**Lead Time**: 36 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | Lead (04-Feb-2026) |
| Ip Rating | IP20, IP54 |
| Coil Voltage | 24VDC |
| Product Range | PSRmini Series |
| Relay Mounting | DIN Rail |
| Contact Current | 6A |
| Relay Terminals | Screw |
| Contact Material | Silver Tin Oxide |
| Contact Configuration | SPST-NO |
| Contact Voltage Ac Nom | 250V |
| Contact Voltage Dc Nom | 250V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3256064/)

https://www.phoenixcontact.com/pi/products/2904952 

## Safety relays - PSR-MS30-1NO-24DC-SC - 2904952 

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) 

Safety relay for emergency stop and safety doors up to SILCL 3, Cat. 4, PL e, 1 or 2-channel operation, automatic start, cross-circuit detection, 1 enabling current path, US = 24 V DC, fixed screw terminal block 

## Your advantages 

Up to Cat.4/PL e according to ISO 13849-1, SILCL 3 according to IEC 62061 

Low housing width of just 6.8 mm 

- Two-channel control 

- 1 enabling current path 

- Automatic activation 

Cross-circuit detection 

Key Commercial Data 

~~a~~ Packing unit 1 pc GTIN 4 °046356°905008 ~~pS~~ GTIN 4046356905008 ~~a~~ 

Technical data 

## Note 

|Utilization restriction|EMC: class A product, see manufacturer's declaration in the download<br>area|
|---|---|



## Dimensions 

|Width|6.8 mm|
|---|---|
|Height|93.1 mm|
|Depth|102.5 mm|
|Ambient conditions||
|Ambient temperature (operation)|-40 °C ... 60 °C (observe derating)|
|Ambient temperature (storage/transport)|-40 °C ... 85 °C|



## Ambient conditions 

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## Safety relays - PSR-MS30-1NO-24DC-SC - 2904952 

## Technical data 

## Ambient conditions 

|Max. permissible relative humidity (operation)|75 % (on average, 85% infrequently, non-condensing)|
|---|---|
|Max. permissible humidity (storage/transport)|75 % (on average, 85% infrequently, non-condensing)|
|Maximum altitude|≤ 2000 m (Above sea level)|
|Power supply||
|Rated control circuit supply voltage US<br>24 V DC -15 % / +10 %<br>20.4 V DC ... 26.4 V DC<br>Rated control supply current IS<br>typ. 42 mA<br>Power consumption at US<br>typ. 1 W<br>Inrush current<br>4.5 A (Δt < 120 µs at Us)<br>Filter time<br>1 ms (at A1 in the event of voltage dips at Us)<br>Protective circuit<br>Surge protection Suppressor diode<br>Protection against polarity reversal for rated control circuit supply voltage<br>~~==~~||
|Digital inputs||
|Input voltage range "0" signal<br>0 V DC ... 5 V DC (for safe Off; at S12)<br>Input current range "0" signal<br>0 mA ... 2 mA (for safe Off; at S12)<br>Inrush current<br>< 20 mA (with Us/Ixto S12)<br>< 10 mA (with Us/Ixat the start circuit)<br>< 5 mA (with Us/Ixto S22)<br>> -15 mA (with Us/Ixto S22/0V)<br>Current consumption<br>< 5 mA (with Us/Ixto S12)<br>< 5 mA (with Us/Ixto S22)<br>< 10 mA (with Us/Ixat the start circuit)<br>> -5 mA (with Us/Ixto S22/0V)<br>Filter time<br>max. 1.5 ms (at S12, S22; test pulse width)<br>min. 7.5 ms (at S12, S22; test pulse rate)<br>Test pulse rate = 5 x Test pulse width<br>Voltage at input/start and feedback circuit<br>24 V DC -15 % / +10 %<br>Max. permissible overall conductor resistance<br>150 Ω<br>~~—_~~||
|Relay outputs: enabling current path||
|Output name<br>Enabling current path<br>Output description<br>safety-related N/O contacts<br>Number of outputs<br>1 (undelayed)<br>Contact type<br>1 enabling current path<br>Contact material<br>AgSnO2<br>Switching voltage<br>min. 12 V AC/DC<br>max. 250 V AC/DC (Observe the load curve)<br>Limiting continuous current<br>6 A (observe derating)<br>Inrush current<br>min. 3 mA<br>max. 6 A<br>~~=~~||
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https://www.phoenixcontact.com/pi/products/2904952 

## Safety relays - PSR-MS30-1NO-24DC-SC - 2904952 

|Technical data||
|---|---|
|Relay outputs: enabling current path||
|Sq. Total current<br>36 A<br>2(observe derating)<br>Switching capacity<br>min. 60 mW<br>Switching frequency<br>max. 0.5 Hz<br>Mechanical service life<br>10x 10<br>6cycles<br>Output fuse<br>6 A gL/gG (N/O contact)<br>4 A gL/gG (for low-demand applications)<br>~~———~~||
|Times||
|Typical pickup time at US|< 250 ms (when controlled via A1)|
|Typical response time at US|< 175 ms|
|Typical release time at US|< 20 ms (when controlled via A1 or S12 and S22.)|
|Recovery time|< 500 ms|
|General||
|Relay type<br>Electromechanical relay with forcibly guided contacts in accordance with<br>IEC/EN 61810-3 (EN 50205)<br>Nominal operating mode<br>100% operating factor<br>Net weight<br>69 g<br>Mounting position<br>vertical or horizontal<br>Mounting type<br>DIN rail mounting<br>Assembly instructions<br>See derating curve<br>Degree of protection<br>IP20<br>Min. degree of protection of inst. location<br>IP54<br>Housing material<br>PBT<br>Housing color<br>yellow<br>Operating voltage display<br>1 x green LED<br>Status display<br>2 x green LEDs<br>~~=~~||
|Connection data||
|Connection method|Screw connection|
|pluggable|no|
|Conductor cross section solid min.|0.2 mm²|
|Conductor cross section solid max.|2.5 mm²|
|Conductor cross section flexible min.|0.2 mm²|
|Conductor cross section flexible max.|2.5 mm²|
|Conductor cross section AWG min.|26|
|Conductor cross section AWG max.|12|
|Stripping length|12 mm|
|Screw thread|M3|



Safety-related characteristic data Stop category 0 Designation IEC 61508 - High demand ~~OO~~ 

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https://www.phoenixcontact.com/pi/products/2904952 

## Safety relays - PSR-MS30-1NO-24DC-SC - 2904952 

## Technical data 

## Safety-related characteristic data 

|Safety Integrity Level (SIL)|3|
|---|---|
|Designation|IEC 61508 - Low demand|
|Safety Integrity Level (SIL)|3|
|Designation|EN ISO 13849|
|Performance level (PL)|e (4 A DC13; 5 A AC15; 8760 switching cycles/year)|
|Category|4|
|Designation|EN 62061|
|Safety Integrity Level Claim Limit (SIL CL)|3|
|Standards and Regulations||
|Designation|Air clearances and creepage distances between the power circuits|
|Standards/regulations|DIN EN 50178|
|Rated insulation voltage|250 V AC|
||250 V AC|
||Safe isolation, reinforced insulation 6 kV between input circuit and|
|Rated surge voltage/insulation|enabling current path|
||Basic insulation 4 kV between all current paths and housing|
|Degree of pollution|2|
|Overvoltage category|III|
|Shock|15g|
|Vibration (operation)|10 Hz ... 150 Hz, 2g|
|Conformance|CE-compliant|



## Standards and Regulations 

## Environmental Product Compliance 

|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 

## Block diagram 

**==> picture [156 x 77] intentionally omitted <==**

**----- Start of picture text -----**<br>
A1 S11 S12 S22 S35 13<br>PSR-MS30 IN K1<br>PWR K1/K2<br>K2<br>24V DC<br>A2 14<br>**----- End of picture text -----**<br>


Block diagram 

**==> picture [156 x 118] intentionally omitted <==**

**----- Start of picture text -----**<br>
A1 S11 S12 PSR-MS30 S22 S35 13<br>1 2<br>3<br>K1<br>K2<br>K1 K2<br>7<br>4 5 6<br>7<br>A2 14<br>**----- End of picture text -----**<br>


Key: 1 = Current limitation 

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https://www.phoenixcontact.com/pi/products/2904952 

## Safety relays - PSR-MS30-1NO-24DC-SC - 2904952 

2 = Input circuit 3 = Voltage limitation 4 = Control circuit channel 1 

5 = Control circuit channel 2 6 = Start channel 1 and 2 7 = Channel 1 K1, K2 = Force-guided elementary relays 

## Application drawing 

**==> picture [156 x 149] intentionally omitted <==**

**----- Start of picture text -----**<br>
24V DC L<br>K1<br>S1<br>K2<br>A1 S35(  ) S11(+) S12(  ) S22(  ) 13 K1<br>PSR-MS30 (GND)<br>A2 14 K2<br>M<br>K1<br>K2<br>0V N Tt<br>**----- End of picture text -----**<br>


## Approvals 

## Approvals 

Approvals 

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

Ex Approvals 

Approval details 

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  ~~oe~~ Functional Safety 44-205-13755202  

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https://www.phoenixcontact.com/pi/products/2904952 

## Safety relays - PSR-MS30-1NO-24DC-SC - 2904952 

Approvals 

RU C- EAC DE.A*30.B.01082  ~~oo~~ cULus Listed  ~~———~~ Phoenix Contact 2019 © - all rights reserved http://www.phoenixcontact.com 

PHOENIX CONTACT GmbH & Co. KG Flachsmarktstr. 8 32825 Blomberg Germany Tel. +49 5235 300 Fax +49 5235 3 41200 http://www.phoenixcontact.com 

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- [Supplier page](https://es.farnell.com/phoenix-contact/psr-ms30-1no-24dc-sc/safety-rly-spst-no-24vdc-6a-din/dp/3256064)
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