$ 113.62
Discover the Phoenix Contact PSR-SCF-24UC/URM/4X1/2X2 safety relay with force-guided contacts, SIL 1 certification, and reliable switching for industrial systems.
The Phoenix Contact PSR-SCF-24UC/URM/4X1/2X2 coupling relay (2981444) is engineered to provide dependable safety switching with force-guided contacts. Compact in design at 40 mm wide, it delivers four enabling and two monitoring circuits for enhanced functional safety. Built for industrial environments, it meets performance level c (PL c) and SIL 1 standards, ensuring compliance with international safety regulations. With the flexibility of one- or two-channel control, this relay offers straightforward integration into automation and machinery applications, where reliable isolation and feedback are critical for maintaining safe and efficient operations.
The PSR-SCF-24UC/URM/4X1/2X2 relay combines robust construction with practical safety features that simplify daily operation. Its electromechanical contacts are force-guided, enabling precise feedback and reducing the risk of undetected faults. A long mechanical service life of up to 10 million cycles supports high system availability and lower maintenance costs. The unit also provides reinforced insulation up to 6 kV, safeguarding equipment in demanding electrical environments. Operating on a 24 V AC/DC supply, it adapts easily to varied control architectures. By integrating this safety relay, engineers can strengthen system protection, streamline proof testing, and achieve consistent reliability across critical applications.
Because it combines compact design, safety-certified performance, and long-lasting reliability in one unit. With force-guided contacts, multiple enabling and monitoring circuits, and international SIL/PL compliance, this coupling relay ensures secure switching in industrial environments. It’s the smart choice for engineers who need proven safety without compromising on installation space.
This relay tackles the challenge of undetected switching failures and unreliable safety feedback in control systems. By integrating force-guided contacts and reinforced insulation, it ensures dependable monitoring of circuits and simplifies proof testing. The result is a safer, more resilient machine or process, reducing downtime while keeping operators and equipment protected.
| Feature | Details | Benefit |
|---|---|---|
| Safety Standard Compliance | EN ISO 13849-1 (PL c), SIL 1 (IEC 61508/62061) | Meets international safety requirements for machinery and process control |
| Contacts | 4 N/O enabling, 2 N/C confirmation | Provides reliable switching and safe feedback in critical circuits |
| Control Channels | 1- or 2-channel operation | Flexible integration into different control architectures |
| Reinforced Insulation | Up to 6 kV between input and output circuits | Enhanced protection against electrical faults |
| Mechanical Service Life | 10 million cycles | Long operational lifespan, reduces downtime and replacements |
| Operating Voltage | 24 V AC/DC (±10%) | Universal compatibility with common control systems |
| Restart & Release Time | < 1 s restart, 10 ms release | Ensures fast system responsiveness and improved safety |
| Mounting | DIN rail, vertical or horizontal | Simple installation in standard control cabinets |
| Housing Width | 40 mm | Space-saving design for compact panel layouts |
| Operating Temperature | -20 °C to +55 °C | Reliable performance in harsh industrial environments |
| Degree of Protection | IP20 (device), IP54 (installation site) | Suitable for protected industrial installations |
Download PSR-SCF-24UC/URM/4X1/2X2 2981444 Datasheet
| Commercial Data | Details |
|---|---|
| GTIN Number | 4017918987787 |
| Traffic / Tariff Number | 85364900 |
| Weight | 103 g (net), 132.8 g (gross) |
| Country of Origin | Germany (DE) |
In metal stamping and forming equipment, operator safety is a top concern. The PSR-SCF relay is ideal for linking emergency-stop buttons and light barriers to the machine’s power circuits. With its force-guided contacts, it prevents hidden failures and ensures any contact issue is immediately detected. The compact design fits easily into control cabinets, while its long mechanical lifespan makes it dependable in environments with constant stopping and starting. This creates a safer workspace while maintaining productivity and compliance with safety regulations.
Modern packaging systems rely on rapid speed and safe operation of moving parts. The PSR-SCF relay enables secure monitoring of guard doors and protective covers. Its dual enabling and confirmation paths ensure that the machine halts immediately if a guard is opened. Thanks to the reliable feedback function, even contact wear or welding is detected quickly, preventing unsafe conditions. Compact dimensions allow integration into existing panels without major redesigns, helping keep production efficient while safeguarding personnel.
Chemical and water treatment facilities demand reliable shutdown mechanisms for pumps and valves in case of faults. The PSR-SCF relay provides reinforced insulation and strong isolation between inputs and outputs, ensuring safe power cut-off when abnormal pressure or leaks are detected. Its force-guided contacts guarantee accurate feedback, making proof testing simple and dependable. With a long service life and robust design, it offers process operators a reliable way to minimize risks while keeping continuous operations running smoothly.
In automated assembly lines, robotic arms must be strictly monitored to prevent collisions with operators. The PSR-SCF relay supports dual-channel control, ensuring both motion control and safety signals are handled independently. If a human enters the restricted zone, the system can shut down instantly, with confirmation paths verifying that the relay has truly switched. Its durable build withstands the frequent start-stop cycles of robotic systems, and its compact size suits space-limited panels. This ensures consistent worker safety without slowing down automation efficiency.
| Category | Model | Part Number | Description | Benefit |
|---|---|---|---|---|
| Accessory – Crimping Tool | CRIMPFOX 6 | 1212034 | Crimping pliers for ferrules 0.25–6.0 mm² | Ensures secure and durable wire terminations |
| Terminal Block | UK 2.5 | 3044076 | Standard feed-through terminal block, 2.5 mm², screw type | Provides organized wiring and stable connections |
| DIN Rail | NS 35/7,5 | 0800886 | Steel DIN rail, 7.5 mm high | Standardized mounting base for relays and accessories |
| Fuse Terminal Block | UK 5-HESI | 3001090 | Terminal block with integrated fuse holder | Protects circuits and extends relay life |
| Power Supply Unit | QUINT POWER 24V/5A | 2866776 | Industrial-grade DIN rail power supply | Provides reliable 24 V DC for control systems |
| Test Adapter | PSR-TA | (Series-based) | Adapter module for relay testing | Simplifies maintenance and proof testing |
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Warranty – 1-year warranty for your peace of mind.
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