$ 184.00
Phoenix Contact PSR-SCP-24UC/ESL4/3X1/1X2/B safety relay with SIL3, Cat.4, PL e. Ensures reliable protection for E-Stop, doors, and light grids.
The Phoenix Contact PSR-SCP-24UC/ESL4/3X1/1X2/B safety relay is a compact and robust solution designed for safeguarding emergency stops, protective doors, and light grids in industrial systems. Built to meet stringent SIL 3 and Category 4 Performance Level e standards, it provides reliable protection in demanding applications. With support for both single- and dual-channel operation, it gives engineers flexibility when configuring safety circuits. Automatic or manually monitored start functions, together with three enabling current paths, make this relay ideal for modern production environments where reliability and compliance are critical.
The PSR-SCP-24UC/ESL4/3X1/1X2/B relay delivers dependable safety control while simplifying installation and operation. Its force-guided contacts ensure fault detection, helping to reduce risks and keep machines operating safely. Fast restart times minimize production downtime, while pluggable screw connections make wiring straightforward during setup or maintenance. Designed for use with emergency stops, interlocks, and optical safety devices, this relay helps manufacturers achieve global safety compliance without complexity. The result is improved machine uptime, safer working conditions, and an overall reduction in maintenance costs across diverse industrial environments.
Because it combines high safety integrity with ease of integration, the Phoenix Contact PSR-SCP-24UC/ESL4/3X1/1X2/B is trusted in industries where reliability cannot be compromised. With SIL 3 and Cat.4 approval, multiple enabling paths, and quick restart capability, it ensures machines stay protected without sacrificing productivity—making it a smart choice for safety-critical automation.
The PSR-SCP-24UC/ESL4/3X1/1X2/B safety relay eliminates the risks of unsafe machine operations by ensuring emergency stops, interlocks, and light grids are monitored effectively. It solves the challenge of balancing strict safety compliance with minimal downtime, giving manufacturers peace of mind, reduced hazards for operators, and efficient control in even the most demanding production environments.
| Feature | Details | Benefit |
|---|---|---|
| Safety Certifications | SIL 3, Cat. 4, PL e | Meets top international safety standards for critical applications |
| Control Options | 1- or 2-channel with auto/manual start | Flexible integration into diverse safety circuit designs |
| Enabling Current Paths | 3 safety-related outputs | Redundant switching for maximum operational safety |
| Signaling Path | 1 auxiliary output | Provides status feedback for system monitoring |
| Response Times | 110–125 ms (start), <1 s restart | Rapid fault detection and system recovery, reducing downtime |
| Operating Voltage | 24 V DC ±10% | Compatible with standard industrial control systems |
| Service Life | Up to 10 million mechanical cycles | Long-lasting performance in demanding environments |
| Housing Width | 22.5 mm | Saves space on DIN rail installations |
| Operating Temperature | -20 °C to +55 °C | Reliable operation in varied industrial climates |
| Protection Rating | IP20 (device), IP54 (installation site) | Safe for controlled industrial environments |
| Mounting Type | DIN rail, vertical or horizontal | Quick and flexible installation in panels |
Download Phoenix Contact PSR-SCP-24UC/ESL4/3X1/1X2/B 2981059 Datasheet
| Commercial Data | Details |
|---|---|
| GTIN Number | 4017918927202 |
| Customs / Tariff Number | 85371098 |
| Weight (Net) | 193.61 g |
| Weight (With Packaging) | 222.7 g |
| Country of Origin | Germany |
On fast-moving packaging lines, conveyors and robotic arms must be stopped instantly if a worker enters a restricted area. The safety relay provides this protection by using its three enabling paths for redundancy, ensuring machines shut down safely even if one path fails. With restart times of less than one second, operations can resume quickly after a stop, minimizing downtime. Its slim profile also fits easily in crowded control cabinets, making it ideal for modern food and beverage plants where efficiency and safety need to work hand in hand.
Industrial presses generate enormous force and can cause severe hazards if not controlled. The safety relay serves as a trusted safeguard by immediately disconnecting power when the emergency stop is triggered or a safety fault is detected. Its SIL 3 and Cat.4 certifications guarantee that redundant systems keep workers protected even under heavy-duty conditions. The built-in monitoring of feedback loops prevents a machine from restarting unless all circuits are verified safe. This reduces risks of accidental activation, while maintaining high productivity in manufacturing environments.
In welding cells, robotic arms move at high speeds and operate close to human operators during setup or inspection. The safety relay ensures that door interlocks and light curtains reliably disable all motion the moment a perimeter is breached. With multiple control channels and enabling paths, it can simultaneously cut power to several actuators or drives. Its robust contact design prevents undetected faults, while LED indicators provide quick status checks for maintenance teams. This makes the relay a crucial component for welding applications where both safety and operational reliability are essential.
Hoists and lifts require absolute safety when transporting people or heavy loads. The safety relay provides immediate power cut-off if an emergency stop is pressed or a door interlock fails. Thanks to its force-guided contacts and redundant outputs, it ensures that motors remain de-energized until all safety checks are complete. The option of manual or monitored restart prevents unintended movement, protecting both users and equipment. Its ability to function reliably across a wide temperature range also makes it suitable for demanding building or industrial lifting systems.
| Category | Model / Part Name | Part Number | Benefits / Use |
|---|---|---|---|
| Accessory – Coding Profile | CP-MSTB | 1734634 | Red insulating coding element for plug or header slots, prevents miswiring and ensures secure connections. |
| Accessory – Coding Section | CR-MSTB | 1734401 | Red insulating insert for headers or plugs, ensures correct mating and avoids connection errors. |
| Tool – Crimping Pliers | CRIMPFOX 6 | 1212034 | Professional crimping tool for ferrules (0.25 mm² – 6.0 mm²), enables reliable wiring and secure contact termination. |
| Safety Relay Family | PSRclassic Series | — | Offers compatibility with other Phoenix Contact PSR safety relays for flexible integration in larger safety systems. |
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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.
