$ 156.63
Phoenix Contact PSR-SCP-24DC/URM4/4X1/2X2/B relay ensures SIL 3 safety, compact design, and reliable contact extension for industrial automation systems.
The Phoenix Contact PSR-SCP-24DC/URM4/4X1/2X2/B safety relay is a robust extension module engineered for advanced machine and system safety. With four enabling outputs, one signaling channel, and a confirmation path, it delivers reliable performance in a compact 22.5 mm housing. Certified to the highest safety levels including Category 4, Performance Level e, and SIL 3, it ensures dependable protection for critical operations. Designed with a TBUS interface and force-guided relay contacts, this module enhances system reliability, simplifies integration, and supports safe shutdown functions across a wide range of industrial environments.
The PSR-SCP-24DC/URM4/4X1/2X2/B relay is built to extend safety functions where extra switching contacts are needed in complex automation setups. Its plug-in screw terminals and modular connection system reduce installation time and wiring errors, making it ideal for fast deployment. The durable AgSnO₂ contacts provide long service life with consistent switching, even under heavy electrical loads. Operating reliably in temperatures from –20 °C to +55 °C, the unit is well-suited for demanding factory and process conditions. By combining high diagnostic capability with compliance to international safety standards, it safeguards both personnel and machinery while minimizing downtime.
Because it delivers uncompromising safety in a compact form, combining multiple enabling and diagnostic paths with SIL 3 and PL e certification. Its modular TBUS design speeds up installation while ensuring reliability, making it a trusted extension for safeguarding machines and workers in high-demand industries.
The PSR-SCP-24DC/URM4/4X1/2X2/B solves the challenge of limited safety contacts in complex automation systems. By providing extra outputs with force-guided reliability, it eliminates wiring bottlenecks, reduces downtime, and ensures that emergency stop and safety functions remain consistent and fail-safe across critical machinery.
| Feature | Details | Benefit |
|---|---|---|
| Housing Width | 22.5 mm | Saves space in control cabinets |
| Safety Certifications | Cat. 4 / PL e (EN ISO 13849), SIL 3 (IEC 61508 & 62061) | Meets the highest international safety standards |
| Relay Contacts | 4 enabling, 1 signaling, 1 confirmation | Provides multiple secure switching paths |
| Operating Voltage Range | 21.6–26.4 V DC | Stable operation within common industrial power supply ranges |
| Contact Material | AgSnO₂ | Long-lasting durability with reliable conductivity |
| Mechanical Service Life | Up to 10 million cycles | Reduces maintenance and ensures extended usability |
| Operating Temperature | -20 °C to +55 °C | Reliable in a wide range of industrial environments |
| Protection Rating | IP20 | Ensures safe installation within protected enclosures |
| Connection Technology | Pluggable screw terminals, TBUS interface | Fast installation and easy module replacement |
| Mounting Type | DIN rail, any position | Flexible and quick integration into existing systems |
| Signal Display | LED (green) | Clear status monitoring at a glance |
Download Phoenix Contact PSR-SCP-24DC/URM4/4X1/2X2/B 2981677 Datasheet
| Commercial Information | Details |
|---|---|
| GTIN Number | 4046356081535 |
| Tariff Number | 85371098 |
| Weight | 152.96 g (net) / 173.74 g (with packaging) |
| Country of Origin | Germany |
In modern robotic assembly and welding cells, safety depends on multiple devices such as emergency stops, light curtains, and guard doors. This relay module provides extra enabling paths so all safety signals are properly managed. If any device detects an unsafe condition, the force-guided contacts shut down the system instantly, while diagnostic feedback helps pinpoint the fault. The result is faster integration, fewer wiring components, and a safer production line that meets strict performance levels.
Food conveyors often operate continuously and must react instantly if a worker triggers an emergency stop or a guard is opened. By using this safety relay extension, the conveyor power can be cut off with absolute reliability. The additional signaling contact allows supervisors to monitor system health and spot issues before breakdowns occur. Its compact width makes it easy to retrofit in tight control cabinets, an important advantage for plants under strict hygiene and space constraints.
Pharmaceutical packaging lines involve many stations—filling, sealing, labeling, and capping—all of which must be secured individually. The relay provides multiple enabling and confirmation channels, ensuring each zone can be isolated while still protecting the entire machine. Its diagnostic capability ensures any fault within the safety system is quickly identified. This prevents defective product runs and keeps both equipment and personnel secure, a necessity where product integrity and compliance are critical.
CNC machines and metal presses require safety systems that withstand harsh operating conditions. The relay’s robust AgSnO₂ contacts and SIL 3 certification make it a dependable choice for cutting off drive power when guards are opened or dangerous movement is detected. The confirmation path ensures the shutdown has occurred, reducing risk of unexpected restarts. With durability against vibration and wide temperature tolerance, it maintains reliability in the demanding environments of machining and heavy fabrication.
| Category | Model / Part Number | Description | Benefit |
|---|---|---|---|
| Coding Element | CP-MSTB (1734634) | Red coding profile inserted into connector slots | Prevents mismatching during wiring and ensures correct installation |
| CR-MSTB (1734401) | Red coding section placed in headers or plugs | Enhances safety by avoiding incorrect plug connections | |
| DIN Rail Connector | PSR-TBUS (2890425) | Bus connector for modular safety relay systems | Simplifies power and signal distribution between modules |
| DIN Rail Connector (Blind Plug) | PSR-TBUS-TP (2981716) | Blind plug for unused PSR-TBUS rail connectors | Protects open bus connectors and maintains system integrity |
| DIN Rail Connector | PSR-TBUS – 1PCS (1326060) | Alternative bus connector for PSR safety relays | Provides reliable module interconnection on DIN rail |
| Tool Accessory | CRIMPFOX 6 (1212034) | Professional crimping pliers for ferrules | Ensures secure wire connections and consistent conductor quality |
For expert guidance before placing your order.
Warranty – 1-year warranty for your peace of mind.
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Technical Support – Contact us for professional after-sales technical assistance.
