Phoenix PSR-SPP Series: Industrial Safety Relay Modules - Selection Guide
Product Overview
The Phoenix PSR-SPP Series are advanced modular safety relay modules designed to protect personnel and equipment in industrial automation. Featuring universal 24V AC/DC (24UC) power supply, flexible contact configurations, and integrated functional modules (e.g., emergency stop monitoring, safety door control, time delay), they support customizable safety circuit design. Compliant with global safety standards (SIL 3, EN ISO 13849-1 PLe), these modules excel in fail-safe protection for scenarios like emergency stops, safety doors, and two-hand control—making them ideal for machine tools, conveyors, and production lines.
Model Quick Reference Table
| Model No. | Product Name | Input Voltage | Contact Configuration (X1:NO / X2:NC) | Key Features | Application Scenarios |
|---|---|---|---|---|---|
| 2981046 | PSR-SPP-24UC/URM4/5X1/2X2/B | 24V AC/DC (24UC) | 5NO / 2NC | URM4 (Universal Relay Module), B-function | Universal multi-channel safety circuits |
| 2981965 | PSR-SPP-24UC/URM/5X1/1X2 | 24V AC/DC (24UC) | 5NO / 1NC | URM (Universal Relay Module) | Standard multi-device safety monitoring |
| 2981842 | PSR-SPP-24UC/URM/3X1/3X2 | 24V AC/DC (24UC) | 3NO / 3NC | URM, balanced NO/NC contacts | Mixed NO/NC safety circuit requirements |
| 2963983 | PSR-SPP-24UC/THC4/2X1/1X2 | 24V AC/DC (24UC) | 2NO / 1NC | THC4 (Temperature-Related Control) | Temperature-dependent safety systems |
| 2963925 | PSR-SPP-24UC/ESM4/3X1/1X2/B | 24V AC/DC (24UC) | 3NO / 1NC | ESM4 (Emergency Stop Module), B-function | Emergency stop monitoring |
| 2981062 | PSR-SPP-24UC/ESL4/3X1/1X2/B | 24V AC/DC (24UC) | 3NO / 1NC | ESL4 (Emergency Stop Light Module), B-function | Emergency stop + status indication |
| 2963967 | PSR-SPP-24UC/ESD/4X1/1X2/600 | 24V AC/DC (24UC) | 4NO / 1NC | ESD (Emergency Stop Delay), 600V-rated | High-voltage system emergency stop with delay |
| 2900510 | PSR-SPP-24UC/ESAM4/3X1/1X2/B | 24V AC/DC (24UC) | 3NO / 1NC | ESAM4 (Enhanced Safety Access Module), B-function | Advanced safety door/access control |
| 2900526 | PSR-SPP-24UC/ESAM4/2X1/1X2 | 24V AC/DC (24UC) | 2NO / 1NC | ESAM4 (Enhanced Safety Access Module) | Basic safety access monitoring |
| 2963941 | PSR-SPP-24UC/ESA4/3X1/1X2/B | 24V AC/DC (24UC) | 3NO / 1NC | ESA4 (Safety Access Module), B-function | Standard safety door monitoring |
| 2963938 | PSR-SPP-24UC/ESA4/2X1/1X2 | 24V AC/DC (24UC) | 2NO / 1NC | ESA4 (Safety Access Module) | Compact safety door control |
| 2963954 | PSR-SPP-24UC/ESA2/4X1/1X2/B | 24V AC/DC (24UC) | 4NO / 1NC | ESA2 (Safety Access Module), B-function | Multi-door safety monitoring |
| 2964005 | PSR-SPP-24UC/URM4/5X1/2X2 | 24V AC/DC (24UC) | 5NO / 2NC | URM4 (Universal Relay Module) | Universal safety circuits (no B-function) |
| 2963970 | PSR-SPP-24UC/URM/5X1/2X2 | 24V AC/DC (24UC) | 5NO / 2NC | URM (Universal Relay Module) | Multi-channel safety with extra NC contacts |
| 2963705 | PSR-SPP-24UC/ESM4/2X1/1X2 | 24V AC/DC (24UC) | 2NO / 1NC | ESM4 (Emergency Stop Module) | Basic emergency stop monitoring |
| 2963996 | PSR-SPP-24UC/ESAM4/8X1/1X2 | 24V AC/DC (24UC) | 8NO / 1NC | ESAM4 (Enhanced Safety Access Module), 8NO contacts | Large-scale multi-door safety monitoring |
Core Technical Specifications (Universal)
| Parameter | Value | Notes |
|---|---|---|
| Safety Certifications | SIL 3, EN ISO 13849-1 (PLe), EN 60947-5-1 | Meets global safety compliance standards |
| Input Voltage Range | 24V AC/DC (24UC: 20.4~28.8V DC; 19.2~26.4V AC) | Universal power for industrial compatibility |
| Contact Capacity | AC 250V/6A; DC 24V/3A | Industrial standard load rating |
| Operating Temperature | -25℃~70℃ | Adapts to harsh industrial environments |
| Mounting Type | 35mm DIN rail (NS 35/7.5) | Compact modular design, space-saving |
| Protection Class | IP20 (cabinet mounting) | Dust-proof, protects against solid objects ≥12mm |
| Insulation Strength | 4kV (coil-contact) | High isolation, anti-interference |
| Response Time | ≤10ms (safety circuit shutdown) | Fast hazard response for critical safety |
| Connection Type | Push-in terminals | Tool-free, fast wiring |
| Certifications | CE, UL, CSA | Global industrial deployment compliance |
Application Scenarios & Recommended Models
1. Universal Multi-Channel Safety Loops
- Requirement: Flexible contact configuration, multi-device monitoring
- Recommended Models: 2981965 (5NO/1NC), 2981842 (3NO/3NC), 2963970 (5NO/2NC)
- Key Reason: URM modules support customizable circuits for mixed safety devices (emergency stops, light curtains)
2. Emergency Stop Monitoring
- Requirement: Dedicated emergency stop control, optional status indication
- Recommended Models: 2963925 (3NO/1NC/B), 2981062 (ESL4 with light), 2963705 (2NO/1NC)
- Key Reason: ESM/ESL modules are optimized for emergency stop circuits; B-function enhances safety redundancy
3. Safety Door/Access Control
- Requirement: Single/multi-door monitoring, basic/advanced functions
- Recommended Models:
- Basic: 2963938 (ESA4, 2NO/1NC), 2900526 (ESAM4, 2NO/1NC)
- Advanced: 2963941 (ESA4/B), 2900510 (ESAM4/B)
- Large-scale: 2963996 (ESAM4, 8NO/1NC)
- Key Reason: ESA/ESAM modules are tailored for access control; 8NO contacts support multi-door systems
4. High-Voltage/Especialized Safety Systems
- Requirement: High-voltage compatibility or temperature-dependent control
- Recommended Models: 2963967 (ESD, 600V-rated) for high-voltage; 2963983 (THC4) for temperature-related safety
- Key Reason: ESD handles 600V loads; THC4 integrates temperature-dependent safety logic
Core Advantages
- Modular Flexibility: Functional modules (URM/ESM/ESA) and diverse contact configurations enable custom safety designs
- Global Safety Compliance: SIL 3/PLe certifications meet international safety standards for critical applications
- Universal Power Supply: 24V AC/DC (24UC) compatibility reduces inventory and simplifies integration
- Fast Wiring: Push-in terminals eliminate tools, accelerating installation and maintenance
- Robust Performance: Wide operating temperature range and 4kV insulation strength resist industrial interference
- Redundant Safety: B-function variants add extra safety layers for high-risk scenarios
Installation & Usage Notes
- Voltage Matching: Ensure the module’s 24UC input matches the system power (24V AC/DC); avoid overvoltage
- Contact Capacity: Verify contact current/voltage does not exceed ratings (add 20% margin for reliability)
- Safety Circuit Design: Follow EN ISO 13849-1 guidelines; use NO contacts for safety-critical paths
- Wiring Specifications: Use shielded cables for safety circuits to reduce EMI; separate safety and control wiring
- Mounting Spacing: Reserve ≥5mm between modules for heat dissipation; install in a clean, dry cabinet
- B-Function Usage: Deploy B-function models for high-risk applications (e.g., heavy machinery) to enhance redundancy
Phoenix PSR-SPP Series: Industrial Safety Relay Modules - Selection Guide
Created on：2025-11-17 11:15
