$ 184.00
Phoenix Contact PSR-SPP-24DC/URD3/4X1/2X2 relay ensures safe, delayed shutdowns. Compact SIL 3 certified module for reliable machine safety control.
The Phoenix Contact PSR-SPP-24DC/URD3/4X1/2X2 safety relay is a compact extension module designed for dependable performance in industrial safety systems. It expands existing safety circuits with four delayed enabling contacts, one signaling path, and a confirmation channel. With an adjustable dropout delay ranging from 0.5 to 30 seconds, it allows precise control of stop sequences. Certified up to Category 3, Performance Level e, and SIL 3, it provides engineers with a high level of protection when integrating into machinery and plant automation. Its slim 22.5 mm housing and push-in terminals ensure easy installation and efficient use of control cabinet space.
The PSR-SPP-24DC/URD3/4X1/2X2 relay combines advanced safety features with practical benefits for real-world operations. By ensuring controlled, delayed switching, it minimizes sudden machine shutdowns and reduces the risk of mechanical wear or operator injury. The module’s force-guided relay design delivers reliability over millions of switching cycles, while the robust housing and optimized circuitry withstand harsh industrial environments. Maintenance teams benefit from the simple wiring design, clear LED indicators, and long service life, reducing downtime and costs. Suitable for a wide range of machinery—such as conveyors, presses, and robotic systems—it provides an economical and effective way to strengthen overall plant safety.
The PSR-SPP-24DC/URD3/4X1/2X2 is more than just a safety relay—it’s a smart extension module that balances reliability, flexibility, and efficiency. Its adjustable dropout delay allows engineers to fine-tune stop times, ensuring safer and smoother machine shutdowns. With a compact 22.5 mm design, space-saving push-in connections, and certifications up to PL e and SIL 3, it stands out as a trusted choice for demanding safety applications where both compliance and performance matter.
Industrial systems often face the challenge of ensuring machinery stops in a controlled, safe manner without compromising productivity. The PSR-SPP-24DC/URD3/4X1/2X2 solves this by extending safety circuits with delayed switching paths that prevent abrupt shutdowns and equipment stress. It reduces risks to operators, safeguards mechanical components from damage, and enables manufacturers to maintain consistent uptime while meeting strict international safety standards—all in one versatile, easy-to-integrate module.
| Feature | Details | Benefit |
|---|---|---|
| Control Type | 1-channel | Simplifies integration into existing safety circuits |
| Contacts | 4 N/O, 1 N/C, 1 confirmation path | Provides multiple safe switching options for flexible safety design |
| Dropout Delay | Adjustable 0.5 … 30 s | Enables precise control of machine stop sequences |
| Safety Standards | Cat. 3, PL e (EN ISO 13849), SIL 3 (IEC 61508, EN IEC 62061) | Meets international safety requirements for high-risk machinery |
| Nominal Input Voltage | 24 V DC | Standardized power supply for industrial environments |
| Typical Input Current | 84 mA | Efficient operation with minimal energy consumption |
| Mechanical Service Life | ~10⁷ cycles | Ensures long-lasting reliability and low maintenance costs |
| Operating Temperature | -20 °C to +55 °C | Stable performance across a wide range of environments |
| Housing Width | 22.5 mm | Saves valuable space in control cabinets |
| Connection Method | Push-in terminals (pluggable) | Faster wiring and easy maintenance |
| Degree of Protection | IP20 | Safe for industrial panel installations |
| Mounting Type | DIN rail | Quick and secure installation in standard enclosures |
Download Phoenix Contact PSR-SPP-24DC/URD3/4X1/2X2 – 2981525 Datasheet
| Commercial Data | Details |
|---|---|
| GTIN Number | 4017918996819 |
| Customs Tariff Number | 85371098 |
| Weight | 168.02 g (net), 233.18 g (gross) |
| Country of Origin | Germany (DE) |
In large warehouses and material transport systems, conveyors must stop safely during an emergency. The PSR-SPP-24DC/URD3/4X1/2X2 provides multiple enabling and signaling contacts that integrate emergency-stop buttons and guard switches into one safety loop. Its adjustable dropout delay allows the belt to decelerate in a controlled manner instead of stopping suddenly, reducing strain on motors and mechanical parts. This ensures that operators are protected while minimizing costly wear and unplanned downtime.
Automated production cells with industrial robots often require secured gates or safety doors. The PSR-SPP relay monitors these access points, ensuring machines only run when all doors are locked and safe conditions are confirmed. If a door opens while robots are active, the relay forces the system into a controlled stop. Thanks to its certified safety levels, it helps manufacturers comply with strict regulations while also extending equipment life by preventing abrupt halts.
Metal forming and stamping presses pose high risks if operators can reach the tooling area. With the PSR-SPP, a two-hand control setup can be implemented, requiring both buttons to be pressed simultaneously before the press cycle begins. If one hand releases early, the system safely interrupts the process. This function keeps operators’ hands away from danger zones and maintains continuous productivity. The rugged relay design ensures reliability across millions of cycles in demanding industrial environments.
High-speed packaging and filling equipment involves moving parts that can endanger staff during adjustments or cleaning. Light curtains create a protective zone around critical areas. When connected through the PSR-SPP relay, any interruption of the light beam instantly signals the system to stop or delay shutdown according to the configured safety logic. This prevents accidents while still allowing machines to complete ongoing cycles, protecting both workers and equipment from unnecessary damage.
| Category | Model | Part Number | Benefit |
|---|---|---|---|
| DIN Rail Bus Connector | PSR-TBUS | 2890425 | Enables quick system expansion and reliable communication between modules |
| DIN Rail Bus Connector (Blind Plug) | PSR-TBUS-TP | 2981716 | Protects open connectors and maintains system integrity |
| DIN Rail Bus Connector (Single Piece) | PSR-TBUS (1PCS) | 1326060 | Simplifies installation and ensures consistent power/signal flow |
| Crimping Tool | CRIMPFOX 6 | 1212034 | Provides secure conductor terminations, ensuring stable electrical connections |
| Safety Relay Family (Extension Module) | PSR-SPP-24DC/URD3/4X1/2X2 | 2981525 | Expands safety circuits with reliable delayed contacts |
| Safety Controller (Evaluating Device) | PSR-SDC4 Series | — | Manages complex safety functions when used with PSR extensions |
For expert guidance before placing your order.
Warranty – 1-year warranty for your peace of mind.
Global Shipping – We ship worldwide with secure packaging and reliable delivery.
Technical Support – Contact us for professional after-sales technical assistance.
