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2702901
Safety Relay, 24 VDC, DPST-NO, PSRmini Series, DIN Rail, 6 A, Screw
⚠️ 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
- Coil Voltage:24VDC; Contact Configuration:DPST-NO; Product Range:PSR-MC42 Series; Relay Mounting:DIN Rail; Contact Current:6A; Relay Terminals:Screw; Contact Voltage AC Nom:250V; C
- 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: DPST-NO
- Contact Voltage AC Nom: 250V
- Contact Voltage DC Nom: 250V
| Delivery and price | |
|---|---|
| Units per pack | 1 |
| Price | 362.82 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
https://www.phoenixcontact.com/au/products/2702901 ## Safety relays - PSR-MC42-2NO-1DO-24DC-SC - 2702901 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 with IO-Link for emergency stop, safety doors, and light grids, up to SILCL 3, Cat. 4, PL e, 2 sensor circuits, automatic or manual, monitored start, 2 enabling current paths, 1 signal output, US = 24 V DC, plug-in screw terminal block ## Your advantages - Up to Cat. 4/PL e according to ISO 13849-1, SILCL 3 according to IEC 62061, SIL 3 according to IEC 61508 Single and two-channel control - 2 sensor circuits - 2 enabling current paths, 1 digital signal output - Diagnostic data via IO-Link in combination with PSR-CT safety switches For emergency stop and safety door monitoring, plus evaluation of light grids Manually monitored and automatic activation Key Commercial Data Packing unit 1 pc ~~a~~ GTIN 4°055626'458540 ~~A a~~ GTIN 4055626458540 ~~Le~~ Weight per Piece (excluding packing) 187.900 g Sales Key DNA181 ## Technical data ## Note |Utilization restriction|EMC: class A product, see manufacturer's declaration in the download| |---|---| ||area| |Dimensions|| |Width|17.5 mm| |Height|112.2 mm| |Depth|114.5 mm| ## Dimensions 07/16/2019 Page 1 / 8 https://www.phoenixcontact.com/au/products/2702901 ## Safety relays - PSR-MC42-2NO-1DO-24DC-SC - 2702901 ## Technical data ## Ambient conditions |Ambient conditions|| |---|---| |Ambient temperature (operation)|-25 °C ... 60 °C (observe derating)| |Ambient temperature (storage/transport)|-40 °C ... 85 °C| |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 |Ambient temperature (storage/transport)<br>Max. permissible relative humidity (operation)<br>Max. permissible humidity (storage/transport)<br>Maximum altitude<br>Power supply|-40 °C ... 85 °C<br>75 % (on average, 85% infrequently, non-condensing)<br>75 % (on average, 85% infrequently, non-condensing)<br>≤ 2000 m (Above sea level)| |---|---| |Designation|A1/A2| |Rated control circuit supply voltage US|24 V DC -20 % / +25 % (provide external protection)| |Rated control supply current IS|typ. 60 mA| |Power consumption at US|typ. 1.44 W| |Inrush current|typ. 2.5 A (Δt = 500 µs at Us)| |Filter time|1 ms (at A1 in the event of voltage dips at Us)| |Protective circuit|Serial protection against polarity reversal Suppressor diode| ## Supply of the IO-Link ports |Input name<br>~~=—~~|Sensor circuit S0<br>~~=—~~| |---|---| |~~=—~~|S12, S22<br>~~=—~~| |Description of the input<br>~~=—~~|safety-related sensor inputs<br>~~=—~~| |~~=—~~|NPN (S12), NPN/PNP (S22)<br>~~=—~~| |Number of inputs<br>~~=—~~|2<br>~~=—~~| |Input voltage range "0" signal<br>~~=—~~|0 V DC ... 5 V DC (S12)<br>~~=—~~| |~~=—~~|For S22, see note in “Signal generator connection versions” section.<br>~~=—~~| |Input voltage range "1" signal<br>~~=—~~|11 V DC ... 30 V DC<br>~~=—~~| |Input current range "0" signal<br>~~=—~~|0 mA ... 2 mA (S12, S22)<br>~~=—~~| |Inrush current<br>~~=—~~|< 5 mA (typ. with USat S12, Δt = 150 ms)<br>~~=—~~| |~~=—~~|< 5 mA (typically with USat S22/24 V, Δt = 500 µs)<br>~~=—~~| |~~=—~~|> -5 mA (typically with USat S22/0 V, Δt = 500 µs)<br>~~=—~~| |Current consumption<br>~~=—~~|< 5 mA (Typically with USat S12)<br>~~=—~~| |~~=—~~|< 5 mA (typically with USat S22/24 V)<br>~~=—~~| |~~=—~~|> -5 mA (typically with USat S22/0 V)<br>~~=—~~| |Filter time<br>~~=—~~|1.5 ms (Test pulse width of low test pulses)<br>~~=—~~| |~~=—~~|Test pulse rate = 5 x Test pulse width<br>~~=—~~| |~~=—~~|Deactivate switch-on pulses/light tests for safety applications.<br>~~=—~~| https://www.phoenixcontact.com/au/products/2702901 ## Safety relays - PSR-MC42-2NO-1DO-24DC-SC - 2702901 ## Technical data |Digital inputs|| |---|---| |Max. permissible overall conductor resistance<br>~~a~~|150 Ω<br>~~G~~| |Concurrence input 1/2|∞| |Protective circuit/component<br>~~GO~~|Suppressor diode<br>~~GO~~| |Input name<br>~~GO~~|Sensor circuit S1<br>~~GO~~| |~~GO~~|S32, S42<br>~~GO~~| |Description of the input<br>~~GO~~|safety-related sensor inputs<br>~~GO~~| |~~CO~~|NPN<br>~~CO~~| |Number of inputs<br>~~a~~|2<br>~~G~~| |Input voltage range "0" signal<br>~~GO~~|0 V DC ... 5 V DC<br>~~GO~~| |Input voltage range "1" signal<br>~~GO~~|11 V DC ... 30 V DC<br>~~GO~~| |Input current range "0" signal<br>~~GO~~<br>~~a~~|0 mA ... 2 mA<br>~~GO~~<br>~~Ge~~| |Inrush current<br>~~a~~|< 20 mA (typically with US)<br>~~Ge~~| |Current consumption<br>~~a~~<br>~~eG~~|< 5 mA (typically with US)<br>~~Ge~~<br>~~eG~~| |Filter time<br>~~CO~~|max. 1.5 ms (Test pulse width of low test pulses)<br>~~CO~~| |~~GO~~|Test pulse rate = 5 x Test pulse width<br>~~GO~~| |~~OO~~|Deactivate switch-on pulses/light tests for safety applications.<br>~~OO~~| |Max. permissible overall conductor resistance<br>~~GO~~|150 Ω<br>~~GO~~| |Concurrence input 1/2<br>~~GO~~|∞<br>~~GO~~| |Protective circuit/component<br>~~a~~|Suppressor diode<br>~~G~~| |Input name<br>~~CO~~|Diagnostic input<br>~~CO~~| |~~GO~~|DGN<br>~~GO~~| |Description of the input<br>~~OO~~<br>~~**a**~~|non-safety-related<br>~~OO~~<br>~~GO~~| |Number of inputs<br>~~**a**~~|1<br>~~GO~~| |Input voltage range<br>~~**a**~~|0 V DC ... 30 V DC<br>~~GO~~<br>~~C~~| |Current consumption<br>~~a~~|typ. 30 mA<br>~~a~~<br>~~G~~| |Protective circuit/component<br>~~CO~~|Suppressor diode<br>~~CO~~| |Input name<br>~~GO~~|Start circuit<br>~~GO~~| |~~OO~~|S34<br>~~OO~~| |Description of the input<br>~~GO~~|NPN (manual start), PNP (autostart)<br>~~GO~~| |Number of inputs<br>~~GO~~|1<br>~~GO~~| |Input voltage range "1" signal<br>~~a~~|19.2 V DC ... 30 V DC (manual start, autostart: 0 V)<br>~~G~~| |Inrush current<br>~~GO~~|< 10 mA (typically with US, Δt = 100 ms)<br>~~GO~~| |Current consumption<br>~~a~~|< 5 mA (typically with USat S34/24 V)<br>~~a~~<br>~~Ge~~| |~~a~~|> -5 mA (typically with USat S34/0 V)<br>~~a~~<br>~~Ge~~| |Max. permissible overall conductor resistance<br>~~CO~~|150 Ω<br>~~Ge~~<br>~~CO~~| |Protective circuit/component<br>~~GO~~|Suppressor diode<br>~~GO~~| 07/16/2019 Page 3 / 8 https://www.phoenixcontact.com/au/products/2702901 ## Safety relays - PSR-MC42-2NO-1DO-24DC-SC - 2702901 Technical data IO-Link inputs Cycle Time 5 ms Process data update 5 ms Amount of process data max. 31 Byte (Input data) max. 16 Byte (Output data) Number of ports 1 Connection method Screw connection Connection technology 3-wire Port type Class A Input name C/Q Description of the input IO-Link switching and communication cable Number of inputs 1 ~~aS~~ Relay outputs: enabling current path Output name Enabling current path 13/14, 23/24 Output description safety-related N/O contacts 2 NO contacts each in series, without delay, floating Number of outputs 2 (undelayed) Contact type 2 enabling current paths Contact material AgSnO2 Switching voltage min. 12 V AC/DC max. 250 V AC/DC (Observe the load curve) Limiting continuous current 6 A Inrush current min. 3 mA max. 6 A Sq. Total current 72 A2 (observe derating) Switching capacity min. 60 mW Switching frequency 0.5 Hz Mechanical service life 10x 106 cycles Switching capacity according to IEC 60947-5-1 4 A (24 V (DC13)) 5 A (250 V (AC15)) Output fuse 6 A gL/gG 4 A gL/gG (for low-demand applications) Alarm outputs Designation M1 Output description PNP non-safety-related Number of outputs 1 Voltage approx. 22 V DC (Us - 2 V) Current max. 100 mA ~~=~~ 07/16/2019 Page 4 / 8 https://www.phoenixcontact.com/au/products/2702901 ## Safety relays - PSR-MC42-2NO-1DO-24DC-SC - 2702901 ## Technical data ## Alarm outputs ||Maximum inrush current|500 mA (Δt = 1 ms at Us)| |---|---|---| ||Protective circuit/component|Suppressor diode| |Times||| ||Typical pickup time at US|< 250 ms (when controlled via A1)| ||Typical response time at US|< 220 ms (automatic start)| |||< 175 ms (manual, monitored start)| ||Typical release time at US|< 20 ms (on demand via the sensor circuit)| |||< 20 ms (on demand via A1)| ||Restart time|< 1 s (Boot time)| ||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>187.9 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, yellow, red LED<br>Status display<br>5 green LEDs<br>~~i~~||| |Connection data||| |Connection method<br>pluggable<br>Conductor cross section solid min.<br>Conductor cross section solid max.<br>Conductor cross section flexible min.<br>Conductor cross section flexible max.<br>Conductor cross section AWG min.<br>Conductor cross section AWG max.<br>Stripping length<br>Screw thread<br>Torque<br>Safety-related characteristic data<br>Stop category<br>Designation<br>~~_—~~||07/16/2019 Page 5 / 8<br>Screw connection<br>Yes<br>0.2 mm²<br>2.5 mm²<br>0.2 mm²<br>2.5 mm²<br>24<br>12<br>7 mm<br>M3<br>0.5 Nm ... 0.6 Nm<br>0<br>IEC 61508 - High demand| 07/16/2019 Page 5 / 8 https://www.phoenixcontact.com/au/products/2702901 ## Safety relays - PSR-MC42-2NO-1DO-24DC-SC - 2702901 ## Technical data ## Safety-related characteristic 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 60947-1| |Rated insulation voltage|320 V| ||320 V| |Rated surge voltage/insulation|Basic insulation 4 kV between all current paths and housing| ||Safe isolation, reinforced insulation 4 kV between input circuit and| ||enabling current path (13/14) and enabling current path (23/24)| |Degree of pollution|2| |Overvoltage category|II| |Shock|15g| |Vibration (operation)|10 Hz ... 150 Hz, 2g| |Conformance|CE-compliant| ## Standards and Regulations Environmental Product Compliance REACh SVHC Lead 7439-92-1 ~~|~~ Drawings Block diagram **==> picture [169 x 78] intentionally omitted <==** **----- Start of picture text -----**<br> L+ L- A1 A2 S11 S21 S12 S22 13 23<br>IO-Link 24V DC PSR-MC42 S0 K1<br>COM PWR K2<br>S1<br>WAR<br>C/Q DGN S34 S32 S42 M1 14 24<br>**----- End of picture text -----**<br> 07/16/2019 Page 6 / 8 https://www.phoenixcontact.com/au/products/2702901 ## Safety relays - PSR-MC42-2NO-1DO-24DC-SC - 2702901 Circuit diagram **==> picture [300 x 207] intentionally omitted <==** **----- Start of picture text -----**<br> 24 V DC<br>F1 F2 F3<br>ll ill<br>S3<br>| | |<br>UB FI1A FI1B<br>PSR-CT<br>S2 S1 OV<br>DGN<br>K3 Start FO1A FO1B<br>K4<br>A1 S11 S34 S12 S21 S22 S32 S42 DGN 13 23<br>(GND)<br>L+ L+<br>IO-Link<br>L- L- PSR-MC42<br>Master<br>C/Q C/Q<br>A2 M1 14 24<br>K3<br>K4<br>0 V<br>(+) ( ) ( ) ( ) ( ) ( )<br>**----- End of picture text -----**<br> ## Classifications ## eCl@ss **==> picture [298 x 53] intentionally omitted <==** **----- Start of picture text -----**<br> ||| |---|---| |eCl@ss 5.1|27371901| |eCl@ss 6.0|27371819| |eCl@ss 8.0|27371819| |eCl@ss 9.0|27371819| **----- End of picture text -----**<br> ETIM ETIM 5.0 EC001449 ETIM 6.0 EC001449 ~~eS~~ ## Approvals ## Approvals ## Approvals Functional Safety / Functional Safety Ex Approvals ## Approval details Functional Safety 968/FSP 1718.00/19 07/16/2019 Page 7 / 8 https://www.phoenixcontact.com/au/products/2702901 ## Safety relays - PSR-MC42-2NO-1DO-24DC-SC - 2702901 ## Approvals Functional Safety 01/205/5677.00/19 ## Accessories Accessories Safety switches Safety switch sensor - PSR-CT-C-SEN-1-8 - 2702972 Proximity safety circuit up to Cat. 4, PL e (EN ISO 13849), SIL 3 (IEC 61508), unicode sensor with RFID coding, model 4 (EN ISO 14119), automatic or manual start, integrated diagnostics, 24 V DC supply, IP69K, M12 connector ## Safety switch sensor - PSR-CT-M-SEN-1-8 - 2702975 Proximity safety circuit up to Cat. 4, PL e (EN ISO 13849), SIL 3 (IEC 61508), multicode sensor with RFID coding, model 4 (EN ISO 14119), automatic or manual start, integrated diagnostics, 24 V DC supply, IP69K, M12 connector ## Safety switch sensor - PSR-CT-F-SEN-1-8 - 2702976 Proximity safety circuit up to Cat. 4, PL e (EN ISO 13849), SIL 3 (IEC 61508), fixcode sensor with RFID coding, model 4 (EN ISO 14119), automatic or manual start, integrated diagnostics, 24 V DC supply, IP69K, M12 connector ## Safety switch actuator - PSR-CT-C-ACT - 2702973 Proximity safety circuit up to Cat. 4, PL e (EN ISO 13849), SIL 3 (IEC 61508), coded actuator, compatible with all sensor coding types, supplied inductively via the sensor, IP69K Phoenix Contact 2019 © - all rights reserved http://www.phoenixcontact.com 07/16/2019 Page 8 / 8
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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