$ 217.81
Phoenix Contact PSR-SCP-24UC/ESAM4/3X1/1X2/B safety relay offers SIL 3, Cat. 4 protection for emergency stop and safety door monitoring in automation.
The Phoenix Contact PSR-SCP-24UC/ESAM4/3X1/1X2/B safety relay is a compact and reliable unit developed for emergency stop and safety door monitoring in modern industrial environments. Meeting the highest safety classifications, including SIL 3, Cat. 4, and PL e, it ensures safe shutdown of machinery whenever a hazardous event is detected. Its 2-channel control design and three enabling current paths deliver dependable performance even under demanding operating conditions. Simple DIN rail mounting, fast response times, and robust electromechanical contacts make it an ideal solution for safeguarding operators and equipment in automated production systems.
The PSR-SCP-24UC/ESAM4/3X1/1X2/B relay is built to provide practical benefits beyond compliance. Its dual-channel monitoring improves fault tolerance, while built-in LED indicators give operators immediate system feedback to reduce troubleshooting time. With automatic or manual start options, it adapts easily to various safety concepts, ensuring flexibility across different machines. Protective functions such as polarity reversal resistance and high mechanical durability extend service life in harsh conditions. By combining reliability, compact design, and simplified maintenance, this relay helps manufacturers improve uptime, protect their workforce, and meet international safety requirements with confidence.
The Phoenix Contact PSR-SCP-24UC/ESAM4/3X1/1X2/B safety relay is chosen for its combination of compact design, dual-channel monitoring, and compliance with the highest safety integrity levels. It not only meets SIL 3 and PL e standards but also provides fast response times, LED diagnostics, and flexible start options, making it ideal for modern automated production lines where reliability and operator protection cannot be compromised.
This model addresses one of the biggest challenges in industrial automation — ensuring machines shut down safely during emergencies or access breaches. It solves the risk of operator injury and equipment damage by monitoring emergency stops and safety doors with absolute reliability. Its robust design reduces downtime, improves fault tolerance, and gives businesses confidence that their systems remain compliant and secure in the most demanding environments.
| Feature | Details | Benefit |
|---|---|---|
| Safety Standards | SIL 3, Cat. 4, PL e | Certified maximum protection for machinery and operators |
| Control Type | 2-channel operation | Increases fault tolerance and system reliability |
| Output Paths | 3 enabling current paths, 1 signaling path | Provides redundancy and monitoring flexibility |
| Operating Voltage | 24 V DC (±10%) | Standardized voltage for easy integration |
| Response Time | ≤150 ms | Rapid reaction enhances workplace safety |
| Restart/Recovery Time | < 1 s | Minimizes downtime and improves productivity |
| Mounting | DIN rail, 22.5 mm width | Space-saving and simple installation |
| Indicators | LED status and operating display | Quick troubleshooting and reduced maintenance time |
| Service Life | Approx. 10⁷ cycles | Long-term reliability in demanding applications |
| Housing | Yellow PA, IP20 | Durable, easy-to-identify safety component |
Download Phoenix Contact PSR-SCP-24UC/ESAM4/3X1/1X2/B 2900509 Datasheet
| Commercial Data | Details |
|---|---|
| GTIN Number | 4046356513579 |
| Customs Tariff Number | 85371098 |
| Weight per Piece | 161.1 g (net), 191.91 g (with packaging) |
| Country of Origin | Germany (DE) |
In automated packaging lines, equipment operates at rapid speeds while workers must occasionally adjust settings or replenish materials. The PSR-SCP-24UC/ESAM4/3X1/1X2/B relay provides dual-channel monitoring that ensures any emergency stop command or safety door opening triggers an immediate and reliable machine shutdown. Its fast response time and redundant enabling paths minimize the risk of accidents during operator access. By meeting SIL 3 and Category 4 standards, it helps manufacturers maintain strict compliance while protecting both employees and high-value machinery from damage.
Welding cells in automotive and metalworking facilities involve robotic arms, high heat, and arc hazards. This safety relay ensures that operations only begin when protective doors or curtains are fully closed. If a safety door opens or an emergency stop is pressed, the relay cuts power through multiple current paths, preventing exposure to dangerous conditions. LED status indicators support quick diagnostics, reducing downtime during inspections. The compact relay design integrates easily into control cabinets, allowing reliable safety management without disrupting production flow.
Large presses and shearing machines pose significant risks if not adequately safeguarded. The PSR-SCP-24UC/ESAM4/3X1/1X2/B relay enhances operator protection by processing dual-channel inputs from safety gates and emergency stop devices. With a long mechanical service life and three enabling current paths, it provides robust fault tolerance in heavy-duty applications. The relay’s quick restart and recovery times help maintain production efficiency while ensuring machines remain fully secure before resuming operation. This balance of safety and uptime is crucial in high-volume automotive manufacturing environments.
Conveyors in food and beverage production often require complete shutdowns during cleaning or maintenance. This safety relay ensures machinery cannot restart until safety doors and access gates are confirmed closed. Its resistance to polarity reversal and durable design make it reliable even under frequent washdowns and harsh operating conditions. By providing certified SIL 3 and PL e protection, the relay allows plant operators to meet hygiene and safety regulations while reducing the risk of accidents. Clear LED signaling also gives workers confidence that systems are securely powered down before entry.
| Category | Model / Accessory | Article Number | Function / Benefit |
|---|---|---|---|
| Accessory | Coding Profile CP-MSTB | 1734634 | Prevents incorrect plug connections, ensures secure wiring |
| Coding Section CR-MSTB | 1734401 | Blocks mismating in connectors, improves assembly safety | |
| Tool | Crimping Pliers CRIMPFOX 6 | 1212034 | Crimps ferrules 0.25–6.0 mm² for reliable electrical terminations |
| Accessory | Actuator PSR-ESS-M0-H110 | 1221757 | Emergency stop actuator with anti-lock collar for modular E-stop units |
| Module Holder PSR-ESS-ACC-CB1-C3 | 1221747 | Connects actuator and contact block into a stable E-stop switch unit | |
| Contact Module PSR-ESS-ACC-CB1-NC-SC | 1221752 | Force-guided contact module, supports safety shutdown up to PL e / SIL 3 | |
| Related Relay | Phoenix Contact PSRclassic Family | – | Range of safety relays for E-stop, safety doors, and light curtains |
| Phoenix Contact PSR-ESAM4 Variants | – | Compact dual-channel relays for different installation requirements | |
| Phoenix Contact PSR-ESS Series | – | Modular emergency stop systems designed for scalable safety solutions |
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Warranty – 1-year warranty for your peace of mind.
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