$ 201.94
Phoenix Contact PSR-SPP-24DC/URM4/4X1/2X2/B safety relay with 4 enabling paths, SIL 3, and fast response for reliable machine and plant protection.
The Phoenix Contact PSR-SPP-24DC/URM4/4X1/2X2/B safety relay is a compact extension unit designed to reinforce machine and plant safety. With four enabling channels, one diagnostic channel, and one confirmation channel, it secures dependable emergency stop and monitoring functions. Certified to the highest safety standards including Category 4 PL e and SIL 3, this module offers confidence in critical environments. Its slim 22.5 mm housing and Push-in connection system reduce wiring effort and save valuable panel space. Engineered for easy integration through its TBUS interface, it delivers consistent protection for modern automated systems where reliability is essential.
Built for heavy-duty industrial use, the PSR-SPP-24DC/URM4/4X1/2X2/B ensures stable switching performance with long mechanical life. Fast response times help minimize risk, while diagnostic signaling assists technicians in identifying issues quickly, shortening downtime and improving system uptime. The device operates efficiently under continuous load and adapts to a wide range of control architectures thanks to its flexible DIN rail mounting. Its rugged design withstands challenging operating conditions, ensuring safe and consistent function across diverse applications such as factory automation, machine tools, and process equipment. By combining safety certification, compact design, and straightforward installation, it provides both compliance and productivity advantages.
Because it combines safety, speed, and space efficiency in one compact relay. This model offers four enabling paths plus diagnostic and confirmation outputs, all in a 22.5 mm housing. Certified to the highest global safety standards, it delivers unmatched reliability and quick integration, making it a trusted choice for engineers designing advanced industrial safety systems.
It addresses the critical challenge of dependable machine shutdown and fault detection in complex automation. By providing force-guided contacts, rapid switching, and diagnostic feedback, the relay eliminates risks of undetected failures. It ensures operators and equipment stay protected while minimizing downtime, allowing industries to achieve both regulatory compliance and high productivity.
| Feature | Details | Benefit |
|---|---|---|
| Control Type | Single-channel extension with TBUS interface | Simplifies integration into modular safety systems |
| Outputs | 4 enabling paths, 1 signaling path, 1 confirmation path | Reliable machine shutdown and fault diagnostics |
| Safety Certifications | Cat. 4, PL e (EN ISO 13849-1); SIL 3 (IEC 61508/62061) | Meets highest international safety requirements |
| Switching Capacity | Up to 6 A, 250 V AC/DC | Handles demanding industrial loads with stability |
| Response Time | Approx. 10 ms (on/off) | Fast reaction for critical safety applications |
| Connection Technology | Push-in terminals, pluggable | Reduces wiring time and ensures secure connections |
| Dimensions (W x H x D) | 22.5 x 112 x 114.5 mm | Slim design saves valuable panel space |
| Operating Temperature | -20 °C to +55 °C | Reliable operation across industrial environments |
| Protection Class | IP20 (housing), installation location min. IP54 | Safe use in controlled enclosures |
| Mounting | DIN rail, any position | Flexible installation in standard control cabinets |
| Housing Color | Yellow (RAL 1018) | Clear identification of safety components |
| Service Life | Approx. 10 million mechanical cycles | Long-lasting reliability and reduced maintenance |
Download Phoenix Contact PSR-SPP-24DC/URM4/4X1/2X2/B 2981680 Datasheet
| Commercial Data | Details |
|---|---|
| GTIN (EAN) | 4046356081542 |
| Customs Tariff Number | 85371098 |
| Weight (Excl. Packing) | 153.35 g |
| Weight (Incl. Packing) | 186.18 g |
| Country of Origin | Germany (DE) |
On fast-moving packaging lines, operators often work close to cutting or sealing equipment. The PSR-SPP-24DC/URM4/4X1/2X2/B safety relay ensures that protective doors and guards are properly secured before the machine starts. Its enabling channels control multiple drive motors, while the confirmation path verifies the system is locked. If a guard is opened, the relay instantly disables motion and provides diagnostic feedback. This quick reaction prevents unexpected movement and reduces downtime during troubleshooting, helping factories maintain both operator safety and production efficiency.
In machining centers, spindle tools pose serious hazards if protective enclosures are not secured. The PSR-SPP safety relay monitors the door position and start circuits to prevent machine operation unless the enclosure is fully closed. Its force-guided contacts guarantee reliable interruption even under fault conditions. When a wiring issue or component failure occurs, the confirmation channel detects it and triggers a safe shutdown. This not only shields operators from dangerous exposure but also prevents tool damage, allowing production managers to keep safety standards high without sacrificing operational throughput.
Industrial robots operate with speed and strength, making emergency shutdown capability vital. The PSR-SPP relay links together light curtains, e-stop buttons, and safety gates inside a robotic cell. If any safety device is activated, the relay cuts power to the robot’s drives in milliseconds, halting motion before accidents occur. Its signaling outputs notify the control system of the specific trigger, reducing time spent diagnosing issues. Compact dimensions allow it to be mounted near the controller, keeping wiring simple and reducing reaction delays, ensuring worker safety while supporting continuous, efficient automation.
Food-grade conveyor systems must balance hygienic design with safe operator access. By connecting multiple e-stop buttons and access covers through the PSR-SPP relay, operators can quickly bring conveyors to a halt in emergencies. Its enabling channels stop all motors simultaneously, while diagnostic signals identify which guard or button was activated. With fast release times and reliable switching under load, the relay minimizes risk of injury and product damage. Maintenance crews benefit from clear fault detection, which shortens recovery time and reduces unnecessary downtime, a critical factor in continuous food processing environments.
| Category | Model | Part Number | Description | Benefit |
|---|---|---|---|---|
| Coding Profile | CP-MSTB | 1734634 | Red coding profile for plug or header slot | Prevents miswiring and ensures correct module assignment |
| Coding Section | CR-MSTB | 1734401 | Red coding section inserted into connector recess | Provides clear identification and prevents incorrect connections |
| Bus Connector | PSR-TBUS | 2890425 | DIN rail bus connector for modular safety relays | Enables power, control, and monitoring signals to pass seamlessly across modules |
| Bus Connector – Blind Plug | PSR-TBUS-TP | 2981716 | Blind plug for unused PSR-TBUS slots | Protects open slots and maintains system integrity |
| Bus Connector – Single Pack | PSR-TBUS | 1326060 | Single-piece DIN rail bus connector | Flexible option for smaller system expansions |
| Crimping Tool | CRIMPFOX 6 | 1212034 | Crimping pliers for ferrules (0.25–6.0 mm²) | Ensures reliable wire connections for push-in terminals |
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Warranty – 1-year warranty for your peace of mind.
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