Phoenix PSR-M Series: Industrial Safety Relays - Selection Guide
Overview
Phoenix PSR-M Series are high-reliability industrial safety relays designed for safeguarding personnel and equipment in automation systems. They monitor safety-related circuits (e.g., emergency stops, safety doors, light curtains) and trigger controlled shutdowns when hazards occur. With flexible contact configurations, wide voltage compatibility, and compliance with global safety standards (SIL, EN), they’re ideal for machine tools, conveyors, and industrial production lines requiring fail-safe protection.
Model & Core Parameter Table
| Model No. | Product Name | Input Voltage | Contact Configuration | Special Features | Application Scenario |
|---|---|---|---|---|---|
| 1301404 | PSR-ME20-3NO-1NC-24DC-SC-SET35 | 24V DC | 3 Normally Open (NO) + 1 Normally Closed (NC) | SC (Selective Coordination) + SET35 mounting kit | Small-scale safety circuits (24V DC) |
| 1301402 | PSR-ME20-3NO-1NC-24DC-SC | 24V DC | 3NO + 1NC | SC function | Compact 24V safety loops |
| 2702383 | PSR-MC82-5NO-1NC-1DO-24DC-SP | 24V DC | 5NO + 1NC + 1 Digital Output (DO) | SP (Standard Protection) | Complex safety systems (multi-channel monitoring) |
| 2702382 | PSR-MC82-5NO-1NC-1DO-24DC-SC | 24V DC | 5NO + 1NC + 1DO | SC function | Complex 24V safety loops with selective coordination |
| 2700525 | PSR-MC32-3NO-1NC-24-230UC-SP | 24-230V AC/DC (UC) | 3NO + 1NC | SP + Wide voltage | Universal voltage safety circuits |
| 2700524 | PSR-MC32-3NO-1NC-24-230UC-SC | 24-230V AC/DC (UC) | 3NO + 1NC | SC + Wide voltage | Universal voltage loops with SC |
| 1015503 | PSR-MC31-2SDO-1DO-24DC-SP | 24V DC | 2 Safe Digital Outputs (SDO) + 1DO | SP + Safe outputs | Safety-related output control |
| 1015520 | PSR-MC31-2SDO-1DO-24DC-SC | 24V DC | 2SDO + 1DO | SC + Safe outputs | Safe output control with SC |
| 2700499 | PSR-MC30-2NO-1DO-24DC-SP | 24V DC | 2NO + 1DO | SP function | Basic 24V safety-output integration |
| 2700498 | PSR-MC30-2NO-1DO-24DC-SC | 24V DC | 2NO + 1DO | SC function | Basic 24V loops with SC |
| 2700467 | PSR-MC20-3NO-1DO-24DC-SP | 24V DC | 3NO + 1DO | SP function | Medium-scale 24V safety circuits |
| 2700466 | PSR-MC20-3NO-1DO-24DC-SC | 24V DC | 3NO + 1DO | SC function | Medium-scale 24V loops with SC |
Simplified Model Code Interpretation
- PSR-ME/MC: Product sub-series (ME=entry-level; MC=mid-range with extended functions)
- Numbers (20/30/31/32/82): Model specification (indicates contact quantity/function complexity)
- Contact Marks:
- NO = Normally Open (closes when activated)
- NC = Normally Closed (opens when activated)
- DO = Digital Output (standard control output)
- SDO = Safe Digital Output (safety-rated output for critical control)
- Voltage: 24DC (24V DC); 24-230UC (universal 24-230V AC/DC)
- SP/SC: Protection function (SP=Standard Protection; SC=Selective Coordination, avoids cascading tripping)
- SET35: Includes 35mm DIN rail mounting kit
Core Specifications (Unified for Series)
| Spec Item | Details |
|---|---|
| Safety Certifications | SIL 3, EN 60947-5-1, EN ISO 13849-1 (PLe) |
| Operating Temperature | -25°C~70°C (continuous industrial use) |
| Contact Capacity | Up to 10A/250V AC, 6A/24V DC (switching load) |
| Response Time | ≤10ms (fast hazard response) |
| Installation | 35mm DIN rail (SET35 models include mounting kit) |
| Housing Protection | IP20 (control cabinet installation) |
| Fault Indication | LED indicators for power, status, and faults |
Intuitive Selection Table (At-a-Glance)
| Application Scenario | Key Requirements | Recommended Models | Core Reason |
|---|---|---|---|
| Small-scale 24V safety circuits (e.g., single emergency stop) | 3NO+1NC, compact size | 1301402 (SC), 1301404 (SC+SET35) | Entry-level, fits basic safety loops |
| Complex multi-channel safety (e.g., multiple safety doors) | 5NO+1NC+1DO, high contact count | 2702382 (SC), 2702383 (SP) | 5 NO contacts for multi-device monitoring |
| Universal voltage (24-230V AC/DC) systems | Wide voltage compatibility | 2700524 (SC), 2700525 (SP) | UC design fits global power standards |
| Safe output control (critical shutdowns) | SDO for safety-related outputs | 1015503 (SP), 1015520 (SC) | SDO ensures fail-safe output behavior |
| Basic safety + standard output integration | 2NO/3NO + 1DO | 2700498 (SC), 2700466 (SC) | Combines safety monitoring with control outputs |
| Complex control cabinets (avoid cascading tripping) | Selective Coordination (SC) | All SC-marked models | Prevents entire system shutdown from single-loop faults |
Key Advantages
- Global Safety Compliance: Certifications (SIL 3, PLe) meet international safety standards, ensuring regulatory compliance.
- Flexible Contact Configurations: From 2NO to 5NO + NC/DO/SDO options, matching simple to complex safety circuits.
- Wide Voltage Adaptability: Universal (UC) models cover 24-230V AC/DC, reducing inventory for global deployments.
- Selective Coordination (SC): SC models isolate faults to specific loops, minimizing production downtime.
- Easy Troubleshooting: LED indicators quickly identify power, status, and fault conditions, simplifying maintenance.
Important Notes:
- Voltage Matching: Choose 24DC models for DC systems and UC models for mixed AC/DC or global applications.
- SC vs. SP: Use SC models in complex cabinets to avoid cascading tripping; SP models for basic, standalone safety loops.
- Contact Capacity: Ensure contact current rating exceeds the total load current (add 20% margin for reliability).
- Safety Outputs: For critical shutdowns, prioritize SDO-equipped models (1015503/1015520) for fail-safe behavior.
- Mounting: SET35 models include a DIN rail kit; standard models require separate mounting hardware.
Phoenix PSR-M Series: Industrial Safety Relays - Selection Guide
Created on：2025-11-14 14:22
