The figure shows a version with a screw connection
Official DistributorSKU
MPN
PSR-PC20-1NO-1NC-24DC-SP
Weight
0.2 kg
This product is Not Cancellable/Not Returnable
Series PSR-PC
PSR-PC20-1NO-1NC-24DC-SP - Coupling relay
Coupling relay for SIL 3 high- and low-demand applications, couples digital output signals to the periphery, 1 enabling current path, 1 confirmation current path, 1 digital signal output, safe state off applications, test pulse filter, TBUS connection, pluggable Push-in terminal block
- Up to SIL 3 in accordance with IEC 61508
- Force-guided contacts in accordance with EN 50205
- Easy proof test according to IEC 61508 thanks to integrated signal contact
- Approved for Class I, Zone 2 applications
- Low housing width of just 12.5 mm
- Enabling current path protected via internal fuse as an option
- Long service life thanks to filtering of controller test pulses
- 1 enabling current path, 1 digital signal output, 1 diagnostic current path
- Couples digital output signals from failsafe controllers to I/O devices (valves, etc.) for electrical isolation and power adaptation
- Corrosion protection through protective coating on the PCB
Technical Specifications
Utilization restriction
| CCCex note | Use in potentially explosive areas is not permitted in China. |
Product properties
| Product family | PSRmini |
| Application | Safe switch off |
| Application | High demand |
| Application | Low demand |
| Application | Ex |
| Relay type | Electromechanical relay with force-guided contacts in accordance with IEC/EN 61810-3 |
Times
| Typ. starting time with Us | < 100 ms (with Us when controlled via A1) |
| Typical release time | < 35 ms (when controlled via A1) |
| Recovery time | 500 ms |
Electrical properties
| Maximum power dissipation for nominal condition | 3.43 W (IL² = 36 A²) |
| Nominal operating mode | 100% operating factor |
Air clearances and creepage distances between the power circuits
| Rated Insulation Voltage | 250 V AC |
| Rated surge voltage/insulation | Safe isolation, 6 kV reinforced insulation from control circuit, start circuit, confirmation current path, signal output to the enabling current path; 4 kV/basic insulation between all current paths and housing |
Supply
| Designation | A1/A2 |
| Rated control circuit supply voltage US | 20.4 V DC ... 26.4 V DC |
| Rated control circuit supply voltage US | 24 V DC -15 % / +10 % |
| Rated control supply current IS | typ. 50 mA |
| Power consumption at US | typ. 1.2 W |
| Inrush Current | typ. 400 mA (Δt < 10 µs at Us) |
| Filter time | max. 2 ms (at A1-A2; test pulse width) |
| Filter time | ≥ 100 ms (at A1-A2; test pulse rate) |
| Protective circuit | Serial protection against polarity reversal; Suppressor diode 33 V |
| Designation | 31/A2, TBUS |
| Diagnostic supply voltage UD | 24 V DC -15 % / +10 % |
| Input current at UD | 6 mA (at 31-A2 for UD; depending on load + 100 mA at M1 and 32) |
| Inrush current at UD | typ. 2.5 A (Δt < 20 µs at UD) |
| Protective circuit | Serial protection against polarity reversal; Suppressor diode 33 V |
Relay: Enabling current path
| Output description | 2 N/O contacts in series, without delay, floating |
| Number of Outputs | 1 (safety-related N/O contacts: 13/14 (13F/14)) |
| Contact switching type | 1 enabling current path |
| Contact Material | AgSnO2 |
| Switching voltage | min. 12 V AC/DC |
| Switching voltage | max. 250 V AC/DC (Observe the load curve) |
| Switching capacity | min. 60 mW |
| Inrush Current | min. 3 mA |
| Inrush Current | max. 6 A (N/O contact 13/14) |
| Inrush Current | 4 A (N/O contact 13F/14) |
| Switching capacity in accordance with IEC 60947-5-1 | 4 A (24 V (DC13); N/O contact 13/14) |
| Switching capacity in accordance with IEC 60947-5-1 | 5 A (250 V (AC15); N/O contact 13/14) |
| Switching capacity in accordance with IEC 60947-5-1 | 4 A (250 V (AC15); N/O contact 13F/14) |
| Limiting Continuous Current | 6 A (13/14 for high-demand) |
| Limiting Continuous Current | 4 A (13F/14 with high/low demand, 13/14 with low demand) |
| Sq. Total current | 36 A2 (13/14, see to derating) |
| Sq. Total current | 16 A2 (13F/14, see to derating) |
| Switching frequency | max. 0.5 Hz |
| Mechanical service life | 10x 10⁶ cycles |
| Output fuse | 6 A gL/gG (N/O contact 13/14) |
| Output fuse | 4 A gL/gG (for low-demand applications) |
Relay: Confirmation current path
| Output description | 2 N/C contacts in series, without delay, not floating (reference ground: A2) |
| Number of Outputs | 1 (safety-related N/C contacts: 31/32) |
| Contact switching type | 1 confirmation current path |
| Contact Material | AgCuNi, + Au |
| Switching voltage | min. 20.4 V DC |
| Switching voltage | max. 26.4 V DC |
| Switching capacity | min. 20 mW |
| Inrush Current | min. 1 mA |
| Inrush Current | max. 100 mA |
| Limiting Continuous Current | 100 mA |
| Switching frequency | max. 0.5 Hz |
| Mechanical service life | 10x 10⁶ cycles |
| Output fuse | 150 mA Fast-blow |
Signal: M1
| Output description | PNP |
| Number of Outputs | 1 (non-safety-related) |
| Voltage | approx. 22 V DC (UD - 2 V) |
| Current | max. 100 mA |
| Maximum Inrush Current | 500 mA (Δt = 1 ms at Us) |
| Short-circuit protection | no |
| Output fuse | 150 mA fast blow |
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 sleeve | 0.25 mm² ... 1.5 mm² (only together with CRIMPFOX 6) |
| Conductor cross-section AWG | 24 ... 16 |
| Stripping length | 8 mm |
Signaling
| Status display | 1 x green LED |
| Operating voltage display | 1 x yellow LED |
| Error indication | 1 x red LED |
Dimensions
| Width | 12.5 mm |
| Height | 116.6 mm |
| Depth | 114.5 mm |
Material specifications
| Color (Housing) | yellow (RAL 1018) |
| Housing Material | Polyamide |
Safety data
| Stop category | 0 |
Safety data: EN 50156
| Safety Integrity Level (SIL) | 3 |
Safety data: IEC 61508 - High demand
| Safety Integrity Level (SIL) | 3 |
Safety data: IEC 61508 - Low demand
| Safety Integrity Level (SIL) | 3 |
Ambient conditions
| Degree of Protection | IP20 |
| Min. degree of protection of inst. location | IP54 |
| Ambient Temperature (Operation) | -40 °C ... 70 °C (observe derating) |
| Ambient temperature (storage/transport) | -40 °C ... 85 °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 |
ATEX
| Identification | II 3G Ex ec nC IIC T4 Gc |
| Certificate | UL 22 ATEX 2912X |
IECEx
| Identification | Ex ec nC IIC T4 Gc |
| Certificate | IECEx UL 22.0037X |
UL, USA/Canada
| Identification | cULus |
| Certificate | E140324 |
UL Ex, USA / Canada
| Identification | Class I, Zone 2, AEx nA nC IIC T4 / Ex nA nC IIC Gc T4 X |
| Identification | Class I, Div. 2, Groups A, B, C, D, T4 |
| Certificate | E360692 |
CE
| Identification | CE-compliant |
Environmental simulation test
| Identification | G3 |
| Certificate | ISA-S71.04 |
CCC / China-Ex
| Identification | Ex ec nC IIC T4 Gc |
| Certificate | 2022122304115695 |
DNV
| Identification | C, EMC2 |
| Certificate | 11253-14 HH |
Air clearances and creepage distances between the power circuits
| Standards/regulations | EN 60664-1, EN 60079-7, EN 60079-15 |
Mounting
| Mounting Type | DIN rail mounting |
| Assembly instructions | See derating curve |
| Mounting Position | vertical, horizontal, with front of module upward |
Accessories
ME 6,2 TBUS-2 1,5/5-ST-3,81 GN - DIN rail connector for DIN rail mounting. Universal for TBUS housing. Gold-plated contacts, 5-pos.
Why Proax for Phoenix Contact 2700578?
Proax is an authorized distributor of Phoenix Contact 2700578 and one of Phoenix Contact's largest distributors in North America. Our highly skilled in-house technical team is ready to assist with any technical needs.
Have a question in mind? to help you get the right product as quickly as possible for your project. We're always here to help!
Short Lead Time
Highly Trained Staff
Live Chat
Technical Support
Local Inventory
60+ Years Experience
Additional Information
| Pack Size | 1 |
Recommended
Coupling relay for SIL 3 high- and low-demand applications, couples digital output signals to the periphery, 1 enabling current path, 1 confirmation current path, 1 digital signal output, safe state off applications, test pulse filter, TBUS connection, plug-in screw terminal block
PSR-PC21-2NO-2NC-24DC-SC - Coupling relay for SIL 3 high and low-demand applications, coupled digital output signals to the I/O, 2 independently controllable enabling current paths, 2 confirmation current paths, safe state off applications, test pulse filter, pluggable screw terminal block
PSR-PC21-2NO-2NC-24DC-SP - Coupling relay for SIL 3 high and low-demand applications, coupled digital output signals to the I/O, 2 independently controllable enabling current paths, 2 confirmation current paths, safe state off applications, test pulse filter, pluggable Push-in terminal block
PSR-PC32-2NO-1NC-24-230UC-SC - Coupling relay for SIL 3 high and low-demand applications, couples digital signals to the I/O, 24 V ... 230 V wide-range input, 2 enabling current paths (1x up to 60 V, 1x up to 250 V) 1 confirmation current path, safe state off applications, plug-in screw terminal block- PSR-PC32-2NO-1NC-24-230UC-SP - Coupling relay for SIL 3 high and low-demand applications, couples digital signals to the I/O, 24 V ... 230 V wide-range input, 2 enabling current paths (1x up to 60 V, 1x up to 250 V) 1 confirmation current path, safe state off applications, pluggable Push-in terminal block
PSR-PC40-2NO-1DO-24DC-SC - Coupling relay for SIL 3 high- and low-demand applications, couples digital output signals to the I/O, 2 enabling current paths, 1 digital signal output, safe state off applications, test pulse filter, plug-in screw terminal block- PSR-PC40-2NO-1DO-24DC-SP - Coupling relay for SIL 3 high and low-demand applications, couples digital output signals to the I/O, 2 enabling current paths, 1 digital signal output, safe state off applications, test pulse filter, pluggable Push-in terminal block
PSR-PC50-1NO-1DO-24DC-SC - Coupling relay for SIL 3 low demand applications, couples digital output signals to the periphery, 1 enabling current path, module for F&G applications, test pulse filter, plug-in screw connection, 17.5 mm width- PSR-PC50-1NO-1DO-24DC-SP - Coupling relay for SIL 3 low-demand applications, couples digital output signals to the I/O, 1 enabling current path, module for F&G applications, test pulse filter, width: 17.5 mm, pluggable Push-in terminal block
PSR-PC51-1NO-1NC-24DC-SC - Coupling relay for electrical isolation and power adaptation for SIL 3 F&G applications, low demand, load diagnostics in the Off and On state for wire break and short circuit, 1 enabling current path, test pulse filter, plug-in screw terminal block, width: 17.5 mm
PSR-PC51-1NO-1NC-24DC-SP - Coupling relay for electrical isolation and power adaptation for SIL 3 F&G applications, low demand, load diagnostics in the Off and On state for wire break and short circuit, 1 enabling current path, test pulse filter, plug-in Push-in terminal block, width: 17.5 mm
PSR-PC52-1NO-1NC-24DC-SC - Coupling relay for electrical isolation and power adaptation for SIL 3 F&G applications, low demand, load diagnostics in the Off and On state for wire break and short circuit, 1 enabling current path, test pulse filter, plug-in screw terminal block, width: 17.5 mm
PSR-PC52-1NO-1NC-24DC-SP - Coupling relay for electrical isolation and power adaptation for SIL 3 F&G applications, low demand, load diagnostics in the Off and On state for wire break and short circuit, 1 enabling current path, test pulse filter, plug-in Push-in terminal block, width: 17.5 mm