$ 195.27
Phoenix Contact PSR-SPP-24UC/ESA4/2X1/1X2 safety relay offers SIL 3, PL e protection for emergency stop and safety door monitoring with easy installation.
The Phoenix Contact PSR-SPP-24UC/ESA4/2X1/1X2 is a robust safety relay developed for monitoring emergency stop buttons and protective door switches in industrial systems. Engineered to comply with leading safety categories, including SIL 3 and Performance Level e, it ensures maximum operator and machine protection. The unit supports dual-channel control, providing redundancy and higher reliability for critical processes. With two enabling paths and one signaling output, it delivers clear safety responses in demanding environments. Its compact 24 V DC design, combined with push-in terminals, makes installation straightforward while offering dependable performance across diverse automation applications.
This safety relay is tailored for real-world conditions where uptime and worker safety are essential. By combining manual monitoring with automatic reset functions, it minimizes wiring complexity and improves overall system efficiency. The device incorporates force-guided relay contacts, ensuring dependable shutdown when hazards occur, while its durable housing withstands vibration, shock, and temperature variations. Users benefit from faster recovery times after safety triggers, extended service life, and reduced maintenance needs. Whether integrated into emergency stop circuits or safety door mechanisms, the relay supports manufacturers in meeting stringent industrial standards while enhancing both productivity and workplace safety.
The PSR-SPP-24UC/ESA4/2X1/1X2 is more than a safety relay; it’s a trusted safeguard for modern factories where downtime and risk are not an option. With dual-channel control, force-guided contacts, and compliance to SIL 3 and PL e, it provides reliable protection while streamlining system integration. Its compact form saves valuable panel space, and the intuitive push-in connection reduces setup time. By blending advanced safety standards with practical design, this model ensures a perfect balance of security, efficiency, and ease of use in industrial automation.
Industrial environments face constant challenges in balancing operator safety with productivity. The PSR-SPP-24UC/ESA4/2X1/1X2 solves this by acting as a dependable link between safety devices and machine shutdown functions. It eliminates the risk of unsafe restarts, ensures hazards are neutralized instantly, and supports compliance with global standards without complex wiring. In real use, it reduces the chance of accidents, lowers maintenance efforts, and helps plants recover quickly after emergency stops or safety door activations. This makes it an essential tool for protecting people, machinery, and production schedules in critical applications.
| Feature | Details | Benefit |
|---|---|---|
| Supply Voltage | 24 V DC (-15% / +10%) | Stable operation in standard industrial power environments. |
| Control Type | 2-channel with force-guided contacts | High reliability with redundant monitoring for safety-critical use. |
| Safety Compliance | SIL 3, Cat. 4, PL e | Meets the highest safety standards for global industries. |
| Enabling Paths | 2 enabling current paths + 1 signaling path | Flexible integration for machine stop and monitoring functions. |
| Connection Method | Push-in terminals, pluggable | Quick, secure wiring with minimal installation time. |
| Mechanical Service Life | Approx. 10⁷ cycles | Long-lasting performance, reducing maintenance downtime. |
| Protection Class | IP20 housing (installation ≥ IP54) | Ensures safety in protected control cabinet environments. |
| Operating Temperature | -20 °C to +55 °C | Reliable in varied industrial climates. |
| Mounting Type | DIN rail, vertical or horizontal | Easy panel installation with flexible positioning. |
| Dimensions | W 22.5 mm × H 112 mm × D 114.5 mm | Space-saving design for compact control cabinets. |
Download Phoenix Contact PSR-SPP-24UC/ESA4/2X1/1X2 (2963938) Datasheet
| Commercial Data | Details |
|---|---|
| GTIN Number | 4017918904777 |
| Customs Tariff Number | 85371098 |
| Weight | 181.3 g (per piece) |
| Country of Origin | Germany (DE) |
High-speed packaging systems require quick operator access during changeovers or clearing jams. The PSR-SPP relay ensures that when an emergency stop button or safety gate is activated, power is cut instantly through its dual enabling paths. This prevents unintentional restarts and keeps operators protected. Its compact form factor saves panel space while maintaining full compliance with global safety standards. By reducing the risk of injury and avoiding machine damage, the relay helps manufacturers maintain productivity and meet strict food and consumer goods industry requirements.
In robotic welding or assembly stations, operators work near moving robotic arms and tools. The PSR-SPP relay connects to safety interlocks and door switches, immediately disabling motion if an enclosure is opened. Force-guided contacts provide redundancy, ensuring faults are detected and machines stop safely every time. This reduces the chance of unexpected movements inside the cell, protecting technicians during maintenance. With reliable diagnostics, the relay helps teams identify issues quickly, which minimizes downtime while preserving strict safety compliance in automated production lines.
Large conveyor installations in warehouses or distribution centers must protect workers entering restricted zones. The PSR-SPP safety relay processes signals from emergency stops or presence detectors to instantly cut motor power. Its dual-channel design guarantees that a single fault cannot compromise the protective function. In addition to shutting down equipment, it sends a status signal to controllers, helping maintenance staff pinpoint issues quickly. This combination of reliable stopping power and fast recovery improves worker safety while keeping logistics systems operating efficiently in demanding environments.
Press machines carry significant risk during operation. By wiring emergency stops and safety doors to the PSR-SPP relay, the machine can be halted the moment a hazard is detected. Its ability to combine manual reset with automatic monitoring reduces system complexity while ensuring that restarts only occur when conditions are safe. The relay’s rugged design withstands vibration and shock common in stamping facilities. With redundant enabling paths and compliance to SIL 3 and PL e, it ensures that safety functions remain active even if one circuit path fails, providing confidence in critical metal-forming applications.
| Category | Model | Part Number | Benefit |
|---|---|---|---|
| Coding Profile | CP-MSTB | 1734634 | Prevents mismating and ensures secure connections. |
| Coding Section | CR-MSTB | 1734401 | Provides reliable coding for modular safety systems. |
| Crimping Tool | CRIMPFOX 6 | 1212034 | Enables professional, reliable wiring of connections. |
| Actuator | PSR-ESS-M0-H110 | 1221757 | Ensures safe activation of emergency stop functions. |
| Module Holder | PSR-ESS-ACC-CB1-C3 | 1221747 | Provides secure assembly of modular E-Stop units. |
| Contact Module | PSR-ESS-ACC-CB1-NC-SC | 1221752 | Guarantees reliable integration into safety circuits. |
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Warranty – 1-year warranty for your peace of mind.
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