# Safety Relay, 24 VAC/VDC, 4PST-NO, SPST-NC, PSRclassic Series, DIN Rail, 6 A, Push In

![Product image](https://novapart.co/image/farnell:3256103/)

**URL**: https://novapart.co/products/2963954/safety-relay-24-vac-vdc-4pst-no-spst-nc-psrclassic
**SKU**: 2963954
**Manufacturer**: PHOENIX CONTACT
**Category**: Switches & Relays || Relays || Safety Relays
**Price**: €196.1500
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Svhc | Lead (04-Feb-2026) |
| Ip Rating | IP20, IP54 |
| Coil Voltage | 24VAC/VDC |
| Product Range | PSRclassic Series |
| Relay Mounting | DIN Rail |
| Contact Current | 6A |
| Relay Terminals | Push In |
| Contact Material | Silver Tin Oxide |
| Contact Configuration | 4PST-NO, SPST-NC |
| Contact Voltage Ac Nom | 250V |
| Contact Voltage Dc Nom | 250V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3256103/)

## **Extract from the online catalog** 

## **PSR-SPP- 24UC/ESA2/4X1/1X2/B** 

## Order No.: 2963954 

The figure shows a version with a screw connection 

## http://catalog.phoenixcontact.net/phoenix/treeViewClick.do?UID=2963954 

Safety relay for emergency stop and safety door up to SIL 1, SIL CL 1, Cat. 1, PL c, depending on the application up to SIL 3, SIL CL 3, Cat. 4, PL e, single-channel operation, 4 enabling current paths, nominal input voltage of 24 V AC/DC, plug-in spring-cage terminal blocks 

## Product notes 

**==> picture [121 x 19] intentionally omitted <==**

**----- Start of picture text -----**<br>
WEEE/RoHS-compliant since:<br>11/23/2006<br>**----- End of picture text -----**<br>


|**Commercial data**||||||||||||||||||||||||||11/23/2006|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
||||||||||||||||||||||||||||
|EAN|4<br>017918<br>904821<br>Tn||||||||||||||||||||||||||
|sales group|G500||||||||||||||||||||||||||
|Pack|1 Pcs.||||||||||||||||||||||||||
|Customs tariff|85371099|||||||||||||||||||||||||http://|
|||||||||||||||||||||||||||www.download.phoenixcontact.com|
|Gross weight in pieces|0.276 KG|||||0.276 KG||||||||||||||||||||Please note that the data given|
|Net weight per piece|0.19438 KG|||||||0.19438 KG||||||||||||||||||here has been taken from the<br>online catalog. For comprehensive|
|Catalog page information|Page 69 (C-8-2013)|||||||Page 69 (C-8-2013)||||||||||||||||||information and data, please refer|
|||||||||||||||||||||||||||to the user documentation. The|
|||||||||||||||||||||||||||General Terms and Conditions of|
|||||||||||||||||||||||||||Use apply to Internet downloads.|



## **Technical data** 

## **Dimensions** 

|**Dimensions**||
|---|---|
|Width|22.5 mm|
|Height|112 mm|
|Depth|114.5 mm|



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

Page 1 / 5 Aug 13, 2014 

PSR-SPP- 24UC/ESA2/4X1/1X2/B Order No.: 2963954 http://catalog.phoenixcontact.net/phoenix/treeViewClick.do?UID=2963954 

|**Ambient conditions**||
|---|---|
|Ambient temperature (operation)|-20 °C ... 65 °C|
|Ambient temperature (storage/transport)|-40 °C ... 70 °C|
|**Input data**||
|Nominal input voltage UN|24 V AC/DC|
|Input voltage range in reference to UN|0.85 ... 1.1|
|Typical input current at UN|140 mA AC|
||65 mA DC|
|Voltage at input/start and feedback circuit|approx. 24 V DC|
|Typical response time|65 ms|
|Typical release time|45 ms|
|Recovery time|1 s|
|Status display|Green LED|
|Max. permissible overall conductor resistance|approx. 22 Ω (Input and start circuits at UN)|
|**Output data**||
|Contact type|4 enabling current paths|
||1 signaling current path|
|Contact material|AgSnO2, + 0.2 µm Au|
|Minimum switching voltage|15 V AC/DC|
|Maximum switching voltage|250 V AC/DC|
|Limiting continuous current|6 A (N/O contact)|
||3 A (N/C contact)|
|Inrush current, minimum|25 mA|
|Maximum inrush current|6 A|
|Sq. Total current|72 A<br>2(ITH<br>2= I1<br>2+ I2<br>2+ I3<br>2+ I4<br>2)|
|Interrupting rating (ohmic load) max.|144 W (24 V DC, τ = 0 ms, N/C contact 51/52: 72 W)|
||288 W (48 V DC, τ = 0 ms, N/C contact 51/52: 144 W)|
||110 W (110 V DC, τ = 0 ms)|
||88 W (220 V DC, τ = 0 ms)|
||1500 VA (250 V AC, τ = 0 ms, N/C contact 51/52: 750 VA)|
|Maximum interrupting rating (inductive load)|42 W (24 V DC, τ = 40 ms)|
||42 W (48 V DC, τ = 40 ms)|
||42 W (110 V DC, τ = 40 ms)|
||42 W (220 V DC, τ = 40 ms)|



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

Page 2 / 5 Aug 13, 2014 

PSR-SPP- 24UC/ESA2/4X1/1X2/B Order No.: 2963954 http://catalog.phoenixcontact.net/phoenix/treeViewClick.do?UID=2963954 

|**General**||
|---|---|
|Relay type|Electromechanically forcibly guided, dust-proof relay.|
|Mechanical service life|Approx. 10<br>7cycles|
|Mounting type|DIN rail mounting|
|Degree of protection|IP20|
|Min. degree of protection of inst. location|IP54|
|Mounting position|any|
|Category according to EN 13849-1|1 (up to Cat. 4 depending on the application)|
|Stop category|0|
|Designation|Air and creepage distances between the power circuits|
|Standards/regulations|DIN EN 50178/VDE 0160|
|Rated surge voltage / insulation|4 kV / basic isolation (safe isolation, reinforced insulation and<br>6 kV between input circuit/N/C contacts and enabling current<br>paths).|
|Rated insulation voltage|250 V|
|Pollution degree|2|
|Surge voltage category|III|



## **Connection data** 

|**Connection data**||
|---|---|
|Conductor cross section solid min.|0.2 mm²|
|Conductor cross section solid max.|1.5 mm²|
|Conductor cross section stranded min.|0.2 mm²|
|Conductor cross section stranded max.|1.5 mm²|
|Conductor cross section AWG/kcmil min.|24|
|Conductor cross section AWG/kcmil max|16|
|Stripping length|8 mm|
|Connection method|Spring-cage connection|



**Certificates / Approvals** ~~eee~~ 

® ec @ 

Certification 

cULus Listed, GOST, Functional Safety 

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

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PSR-SPP- 24UC/ESA2/4X1/1X2/B Order No.: 2963954 http://catalog.phoenixcontact.net/phoenix/treeViewClick.do?UID=2963954 

Certifications applied for: 

Certification Ex: 

## **Drawings** 

## Circuit diagram 

**==> picture [39 x 37] intentionally omitted <==**

**----- Start of picture text -----**<br>
A2<br>1 = logics<br>**----- End of picture text -----**<br>


a = RESET 

b = Emergency stop 

One-channel emergency stop circuit with manual activation and monitored contact expansion, suitable up to safety category 

2. 

One-channel safety door monitoring with automatic activation, suitable up to safety category 1. 

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

Page 4 / 5 Aug 13, 2014 

PSR-SPP- 24UC/ESA2/4X1/1X2/B Order No.: 2963954 http://catalog.phoenixcontact.net/phoenix/treeViewClick.do?UID=2963954 

## **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 

Page 5 / 5 Aug 13, 2014 



## Links

- [View this product on Novapart](https://novapart.co/products/2963954/safety-relay-24-vac-vdc-4pst-no-spst-nc-psrclassic)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/phoenix-contact/psr-spp-24uc-esa2-4x1-1x2-b/safety-relay-4pst-no-spst-nc-24v/dp/3256103)
---

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