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2963941
Safety Relay, 24 VAC/VDC, 3PST-NO, SPST-NC, PSRclassic Series, DIN Rail, 6 A, Push In
⚠️ 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: Safety Relays
- 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: 3PST-NO, SPST-NC
- Contact Voltage AC Nom: 250V
- Contact Voltage DC Nom: 250V
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 229.4 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
## PSR-SPP- 24UC/ESA4/3X1/1X2/B - Safety relays 2963941 https://www.phoenixcontact.com/in/products/2963941 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. Safety relay for emergency stop and safety door monitoring up to SIL 3 or Cat. 4, PL e in accordance with EN ISO 13849, 2-channel operation, 3 enabling current paths, nominal input voltage: 24 V DC, pluggable Push-in terminal block ## Your advantages - Up to Cat. 4/PL e in accordance with EN ISO 13849-1, SIL 3 in accordance with EN IEC 62061, SIL 3 in accordance with IEC 61508 - - - - 2 channel control - 3 enabling current paths, 1 signaling current path - Manually monitored and automatic activation in a single device ## Commercial data |Item number|2963941| |---|---| |Packing unit|1 pc| |Minimum order quantity|1 pc| |Sales key|DNA| |Product key|DNA113| |Catalog page|Page 21 (IF-2009)| |GTIN|4017918904784| |Weight per piece (including packing)|192.3 g| |Weight per piece (excluding packing)|159.02 g| |Customs tariff number|85371098| |Country of origin|DE| Oct 24, 2024, 4:42 AM Page 1 (10) ## PSR-SPP- 24UC/ESA4/3X1/1X2/B - Safety relays 2963941 https://www.phoenixcontact.com/in/products/2963941 ## Technical data ## Notes Note on application Note on application Only for industrial use ## Product properties |roduct properties|| |---|---| |Product type|Safety relays| |Product family|PSRclassic| |Application|Emergency stop| ||Safety door| |Mechanical service life|approx. 107cycles| |Relay type|Electromechanical relay with force-guided contacts in<br>accordance with IEC/EN 61810-3| Data management status Article revision 11 ## Electrical properties |ectrical properties|| |---|---| |Maximum power dissipation for nominal condition|16.44 W (US= 26.4 V, IL² = 72 A², PTotal max= 2.04 W + 14.4 W)| |Nominal operating mode|100% operating factor| |Air clearances and creepage distances between the power circuits|| |Rated insulation voltage|250 V| |Rated surge voltage/insulation|See section “Insulation coordination”| ## Input data ## General Rated control circuit supply voltage US 24 V DC -15 % / +10 % Power consumption at US typ. 1.68 W (DC) Rated control supply current IS typ. 70 mA Input voltage range in reference to UN 0.85 ... 1.1 Typical input current at UN 70 mA DC (at US) Inrush current < 3.5 A (Δt = 3 ms at Us) < 100 mA (Δt = 500 ms, with Us/Ix at S12) > -100 mA (Δt = 300 ms, with Us/Ix at S22) < 6 mA (with Us/Ix to S34) Current consumption typ. 38 mA (S12) typ. -38 mA (S22) typ. 1 mA (with Us/Ix to S34) Voltage at input/start and feedback circuit approx. 24 V DC Filter time 5 ms (at A1 in the event of voltage dips at Us) No test pulses permitted Typical response time 150 ms (automatic start) Oct 24, 2024, 4:42 AM Page 2 (10) ## PSR-SPP- 24UC/ESA4/3X1/1X2/B - Safety relays ## 2963941 https://www.phoenixcontact.com/in/products/2963941 |Typ. starting time with Us|250 ms (with Uswhen controlled via A1)| |---|---| |Typical release time|20 ms (on demand via the sensor circuit)| ||45 ms (on demand via A1)| |Concurrence|∞| |Recovery time|1 s (following demand of the safety function)| ||< 1 s (Boot time)| |Protective circuit|Surge protection; Suppressor diode| |Max. permissible overall conductor resistance|approx. 50 Ω (Input and start circuits at US)| |Operating voltage display|Green LED| |Status display|LED (green)| ## Output data |Contact switching type|3 enabling current paths| |---|---| ||1 signaling current path| |Contact material|AgSnO2, + 0.2 µm Au| |Maximum switching voltage|250 V AC/DC| |Minimum switching voltage|10 V AC/DC| |Limiting continuous current|6 A (N/O contact)| |Maximum inrush current|6 A| |Inrush current, minimum|10 mA| |Sq. Total current|72 A2(Enabling current paths)| ||36 A2(Signaling current path 31/32)| |Switching capacity min.|100 mW| |Switching capacity in accordance with IEC 60947-5-1|DC13, enabling current paths| ||AC15, enabling current paths| ||2 A (DC13, signaling current paths)| ||1.5 A (AC15, signaling current paths)| |Output fuse|10 A gL/gG (Enabling current paths)| ||4 A gL/gG (Low-demand enabling current paths)| ||6 A gL/gG (Signaling current path)| ## Connection data |onnection data|| |---|---| |Connection technology|| |pluggable|yes| |Conductor connection|| |Connection method|Push-in connection| |Conductor cross section rigid|0.2 mm² ... 1.5 mm²| |Conductor cross section flexible|0.2 mm² ... 1.5 mm²| |Conductor cross section, flexible, with ferrule, with plastic sleeve|0.25 mm² ... 1.5 mm² (only together with CRIMPFOX 6)| |Conductor cross section flexible, with ferrule without plastic|0.25 mm² ... 1.5 mm² (only together with CRIMPFOX 6)| |sleeve|| |Conductor cross-section AWG|24 ... 16| |Stripping length|8 mm| Oct 24, 2024, 4:42 AM Page 3 (10) ## PSR-SPP- 24UC/ESA4/3X1/1X2/B - Safety relays 2963941 https://www.phoenixcontact.com/in/products/2963941 ## Dimensions ||Width|22.5 mm| |---|---|---| ||Height|112 mm| ||Depth|114.5 mm| ||aterial specifications|| ||Color (Housing)|yellow (RAL 1018)| ||Housing material|Polyamide| ||haracteristics|| ||Safety data|| ||Stop category|0| ||Safety data: EN ISO 13849|| ||Category|4| ||Performance level (PL)|e (5 A DC13; 5 A AC15; 8760 switching cycles/year)| ||Safety data: IEC 61508 - High demand|| ||Safety Integrity Level (SIL)|3| ||Safety data: IEC 61508 - Low demand|| ||Safety Integrity Level (SIL)|3| ||Safety data: EN IEC 62061|| ||Safety Integrity Level (SIL)|3| ## Material specifications ## Characteristics ## Environmental and real-life conditions |nvironmental and real-life conditions|| |---|---| |Ambient conditions|| |Degree of protection|IP20| |Min. degree of protection of inst. location|IP54| |Ambient temperature (operation)|-20 °C ... 55 °C (observe derating)| |Ambient temperature (storage/transport)|-40 °C ... 70 °C| |Maximum altitude|≤ 2000 m (Above sea level)| |Max. permissible humidity (storage/transport)|75 % (on average, 85% infrequently, non-condensing)| |Max. permissible relative humidity (operation)|75 % (on average, 85% infrequently, non-condensing)| |Shock|15g| |Vibration (operation)|10 Hz ... 150 Hz, 2g| ## Standards and regulations |andards and regulations|| |---|---| |Air clearances and creepage distances between the power circuits|| |Standards/regulations|DIN EN 60947-1| ## Mounting Mounting type DIN rail mounting Oct 24, 2024, 4:42 AM Page 4 (10) ## PSR-SPP- 24UC/ESA4/3X1/1X2/B - Safety relays ## 2963941 https://www.phoenixcontact.com/in/products/2963941 |Assembly note|See derating curve| |---|---| |Mounting position|vertical or horizontal| Oct 24, 2024, 4:42 AM Page 5 (10) ## PSR-SPP- 24UC/ESA4/3X1/1X2/B - Safety relays 2963941 https://www.phoenixcontact.com/in/products/2963941 ## Drawings **==> picture [389 x 525] intentionally omitted <==** **----- Start of picture text -----**<br> Circuit diagram<br>A1 S11 S12 S33 S34 13 23 33 41<br>U Logic K1<br>IN 1/2<br>Logic<br>K2<br>Power<br>24 VDC<br>A2 S21 S22 14 24 34 42<br>Circuit diagram<br>L+<br>(L1)<br>Safety door<br>open 21<br>B1<br>22<br>B2<br>closed<br>A1 S11 S12 S21 S22 13 23 33 41 K3<br>(+) ( ) (GND) ( )<br>PSR-ESA4/3x1/1x2<br>(+) ( )<br>A2 S33 S34 14 24 34 42 K4<br>K3 M<br>K3<br>K4<br>K4<br>M<br>(N)<br>**----- End of picture text -----**<br> Oct 24, 2024, 4:42 AM Page 6 (10) ## PSR-SPP- 24UC/ESA4/3X1/1X2/B - Safety relays 2963941 https://www.phoenixcontact.com/in/products/2963941 **==> picture [308 x 269] intentionally omitted <==** **----- Start of picture text -----**<br> Circuit diagram<br>L+<br>(L1)<br>Safety door<br>S1<br>A1 S11 S12 S21 S22 13 23 33 41<br>(+) ( ) (GND) ( )<br>PSR-ESA4/3x1/1x2 K3<br>(+) ( )<br>A2 S33 S34 14 24 34 42<br>M<br>K3<br>M<br>(N)<br>**----- End of picture text -----**<br> Oct 24, 2024, 4:42 AM Page 7 (10) ## PSR-SPP- 24UC/ESA4/3X1/1X2/B - Safety relays 2963941 https://www.phoenixcontact.com/in/products/2963941 ## Approvals To download certificates, visit the product detail page: https://www.phoenixcontact.com/in/products/2963941 UL Listed Approval ID: FILE E 140324 Functional Safety Approval ID: 01/205/0652.05/22 Functional Safety Approval ID: 968/EZ 404.07/22 ## Functional Safety Approval ID: 968/EZ 404.07/22 Oct 24, 2024, 4:42 AM Page 8 (10) ## PSR-SPP- 24UC/ESA4/3X1/1X2/B - Safety relays 2963941 https://www.phoenixcontact.com/in/products/2963941 ## Classifications |ECLASS|| |---|---| |ECLASS-11.0|27371819| |ECLASS-13.0|27371819| |ECLASS-12.0|27371819| ## ETIM ||ETIM 9.0|EC001449| |---|---|---| ||NSPSC|| ||UNSPSC 21.0|39122205| ## UNSPSC Oct 24, 2024, 4:42 AM Page 9 (10) ## PSR-SPP- 24UC/ESA4/3X1/1X2/B - Safety relays 2963941 https://www.phoenixcontact.com/in/products/2963941 ## Environmental product compliance EU RoHS Fulfills EU RoHS substance requirements Yes Exemption 7(a), 7(c)-I ## China RoHS Environment friendly use period (EFUP) EFUP-50 An article-related China RoHS declaration table can be found in the download area for the respective article under "Manufacturer declaration". For all articles with EFUP-E, no China RoHS declaration table issued and required. ## EU REACH SVHC REACH candidate substance (CAS No.) Lead(CAS: 7439-92-1) SCIP 9d33e01f-c21b-422c-b23e-244303eef29c Phoenix Contact 2024 © - all rights reserved https://www.phoenixcontact.com PHOENIX CONTACT (I) Pvt. Ltd. A-58/2, Okhla Industrial Area, Phase - II, New Delhi-110 020 +91.1275.71420 info@phoenixcontact.co.in Oct 24, 2024, 4:42 AM Page 10 (10)
Updated at April 29, 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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