Official DistributorSKU
MPN
2702355
Weight
0.15 kg
Series PSR-MM
PSR-MM25-1NO-2DO-24DC-SC - Safety relay module
Safety relay module for sensor-free zero-speed monitoring for 3- and 1-phase motors up to SIL 3, Cat. 3, PL e, 2-channel evaluation of the residual voltage of AC, three-phase, and DC motors, plug-in screw terminal block, width: 12.5 mm
- Monitoring of 1 and 3-phase AC or DC motors
- No additional sensors required
- Adjustable delay time from 0.5 s ... 20 s
- Adjustable switching threshold from 50 mV... 500 mV
- 1 enabling current path, 2 digital signal outputs
- Low housing width of just 12.5 mm
- Up to Cat. 3/PL e in accordance with EN ISO 13849-1, SIL 3 in accordance with EN IEC 62061
Technical Specifications
Product properties
| Application | Zero-speed safety relay |
Times
| Typ. starting time with Us | < 1 s |
| Response time | typ. 20 ms (at 50 Hz input frequency) |
| Delay time range | 0.5 s ... 20 s ±1 % (K1, K2 can be parameterized) |
Electrical properties
| Nominal operating mode | 100% operating factor |
| Interfaces | Without sensor |
Air clearances and creepage distances between the power circuits
| Rated Insulation Voltage | 250 V AC |
| Rated Insulation Voltage | 250 V AC |
| Rated Insulation Voltage | 400 V AC with isolation paths between (L1/L2/L3) and the remaining current paths |
| Rated Insulation Voltage | 690 V AC (with isolation paths within L1/L2/L3) |
| Rated surge voltage/insulation | Basic insulation 4 kV:between all current paths and housingBasic insulation 8 kV:between L1 and L2between L1 and L3between L2 and L3 |
| Rated surge voltage/insulation | Safe isolation, reinforced insulation 6 kV:between A1/A2 and 13/14between MO/FO and 13/14Safe isolation, reinforced insulation 8 kV:between L1/L2/L3 and A1/A2between L1/L2/L3 and MO/FObetween L1/L2/L3 and 13/14 |
Supply
| 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 | 5.6 A (Δt = 400 µs at Us) |
| Filter time | 1 ms (at A1 in the event of voltage dips at Us) |
| Protective circuit | Surge protection; Suppressor diode |
| Protective circuit | Protection against polarity reversal for rated control circuit supply voltage |
Measurement
| Voltage input signal | max. 690 V AC/DC (at L1/L2/L3) |
| Limit frequency | max. 3 kHz (At voltages > 2 VRMS) |
| Current consumption | max. 0.35 mA (at L1/L2/L3) |
Relay: Enabling current path
| Output description | safety-related N/O contacts |
| Number of Outputs | 1 (undelayed) |
| Contact switching type | 1 enabling current path |
| Contact Material | AgSnO2 |
| Switching voltage | min. 24 V AC/DC |
| Switching voltage | max. 250 V AC/DC (Observe the load curve) |
| Switching capacity | min. 72 mW |
| Inrush Current | min. 3 mA |
| Inrush Current | max. 5 A |
| Limiting Continuous Current | 5 A (observe derating) |
| Sq. Total current | 25 A2 (observe derating) |
| Switching frequency | max. 0.5 Hz |
| Mechanical service life | 10x 106 cycles |
| Output fuse | 5 A gL/gG |
Signal
| Number of Outputs | 2 (digital, PNP) |
| Voltage | 23 V DC (US - 1 V) |
| Current | max. 100 mA |
| Maximum Inrush Current | 500 mA |
| Short-circuit protection | Yes |
Connection technology
| pluggable | yes |
Conductor connection
| Connection Method | Screw connection |
| Conductor cross section rigid | 0.2 mm² ... 2.5 mm² |
| Conductor cross section flexible | 0.2 mm² ... 2.5 mm² |
| Conductor cross section, flexible, with ferrule, with plastic sleeve | 0.2 mm² ... 2.5 mm² |
| Conductor cross section flexible, with ferrule without plastic sleeve | 0.2 mm² ... 2.5 mm² |
| Conductor cross-section AWG | 24 ... 12 |
| Stripping length | 7 mm |
| Screw thread | M3 |
Signaling
| Status display | 4 x LED Bi-Colour |
Dimensions
| Width | 12.5 mm |
| Height | 112.2 mm |
| Depth | 114.5 mm |
Material specifications
| Color (Housing) | yellow (RAL 1018) |
| Housing Material | Polyamide |
Safety data
| Stop category | 0 |
Safety data: EN ISO 13849
| Category | 3 |
| Performance level (PL) | e (4 A DC13; 5 A AC15; 17520 switching cycles/year) |
Safety data: IEC 61508 - High demand
| Safety Integrity Level (SIL) | 3 (4 A DC13; 5 A AC15; 17520 switching cycles/year) |
Safety data: EN IEC 62061
| Safety Integrity Level (SIL) | 3 (4 A DC13; 5 A AC15; 17520 switching cycles/year) |
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 ... 85 °C |
| Maximum altitude | max. 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 |
CE
| Certificate | CE-compliant |
Air clearances and creepage distances between the power circuits
| Standards/regulations | DIN EN 50178 |
Mounting
| Mounting Type | DIN rail mounting |
| Assembly instructions | See derating curve |
| Mounting Position | vertical or horizontal |
Accessories
Why Proax for Phoenix Contact PSR-MM25-1NO-2DO-24DC-SC?
Proax is an authorized distributor of Phoenix Contact PSR-MM25-1NO-2DO-24DC-SC 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
| Alternate Names | PSRMM251NO2DO24DCSC |
| Pack Size | 1 |
Recommended
2702356 - Safety relay module for sensor-free zero-speed monitoring for 3- and 1-phase motors up to SIL 3, Cat. 3, PL e, 2-channel evaluation of the residual voltage of AC, three-phase, and DC motors, plug-in Push-in terminal block, width: 12.5 mm
1249515 - Safety relay module for sensor-free speed and speed range monitoring up to SIL 3, Cat. 4, PL e, 2-channel evaluation of the rotating field of AC and three-phase motors, plug-in screw terminal block, width: 12.5 mm
1249516 - Safety relay module for sensor-free speed and speed range monitoring up to SIL 3, Cat. 4, PL e, 2-channel evaluation of the rotating field of AC and three-phase motors, plug-in Push-in terminal block, width: 12.5 mm
2702357 - 2-channel over-speed and zero-speed safety relay up to SIL 3, Cat. 4, PL e, 2 safe relay outputs, suitable for connecting HTL, TTL, or sine/cosine encoders as well as proximity switches, plug-in screw terminal block, width: 22.5 mm
2702358 - 2-channel over-speed and zero-speed safety relay up to SIL 3, Cat. 4, PL e, 2 safe relay outputs, suitable for connecting HTL, TTL, or sine/cosine encoders as well as proximity switches, plug-in Push-in terminal block, width: 22.5 mm
2904951 - Safety relay for emergency stop and safety doors up to SIL 1, Cat. 1, PL c, depending on the application up to SIL 3, Cat. 4, PL e, 1-channel operation, manual, monitored start, 1 enabling current path, US = 24 V DC, fixed screw terminal block
2702192 - Safety relay for failsafe controllers up to SILCL 3, Cat. 4, PL e, 1-channel operation, autostart, 1 enabling current path, US = 24 V DC in accordance with IEC 61131-6, fixed screw terminal block
2904950 - Safety relay for emergency stop and safety doors up to SIL 1, Cat. 1, PL c, depending on the application up to SIL 3, Cat. 4, PL e, 1-channel operation, automatic start, 1 enabling current path, US = 24 V DC, fixed screw terminal block
2904953 - Safety relay for emergency stop and safety doors up to SIL 3, Cat. 4, PL e, 1 or 2-channel operation, manual, monitored start, cross-circuit detection, 1 enabling current path, US = 24 V DC, fixed screw terminal block
2904955 - Safety relay for emergency stop and safety doors up to SIL 3, Cat. 4, PL e, 1 or 2-channel operation, manual, monitored start, 1 enabling current path, US = 24 V DC, fixed screw terminal block
2904952 - Safety relay for emergency stop and safety doors up to SILCLSIL 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
2904957 - Safety relay for monitoring non-equivalent signal generators up to SIL 3, Cat. 4, PL e, 2-channel, non-equivalent operation, manual, monitored start, 1 enabling current path, US = 24 V DC, fixed screw terminal block
2904954 - Safety relay for emergency stop and safety doors up to SIL 3, Cat. 4, PL e, 1 or 2-channel operation, automatic start, 1 enabling current path, US = 24 V DC, fixed screw terminal block
2904956 - Safety relay for monitoring non-equivalent signal generators up to SIL 3, Cat. 4, PL e, 2-channel, non-equivalent operation, automatic start, 1 enabling current path, US = 24 V DC, fixed screw terminal block
2904958 - Safety relay for emergency stop, safety doors, and light grids up to SIL 3, Cat. 4, PL e, 1 or 2-channel operation, automatic start, 2 enabling current paths (1-channel), US = 24 V DC, fixed screw terminal block