Phoenix Contact PSR-SCP-24UC/URM/3X1/3X2 Coupling Relay

Phoenix Contact PSR-SCP-24UC/URM/3X1/3X2 Coupling Relay – Safe Signal Switching

The Phoenix Contact PSR-SCP-24UC/URM/3X1/3X2 coupling relay is designed to ensure safe and dependable signal transfer in industrial automation systems. It combines three normally open and three normally closed contacts within a slim 22.5 mm housing, delivering both compactness and reliability. Certified to international safety standards such as SIL 1 and Performance Level c, this relay provides secure feedback and fault detection for critical applications. With its quick restart time, surge protection, and screw terminal connection, it offers a practical solution for integrating safety functions into control panels where precision and functional safety are required.

The PSR-SCP-24UC/URM/3X1/3X2 enhances operational safety by incorporating force-guided contacts that enable precise monitoring and straightforward proof testing. Its design supports both single- and dual-channel control, allowing engineers flexibility in configuring safety circuits. The relay achieves a mechanical lifetime of up to 10 million switching cycles, ensuring long-term reliability in demanding environments. Its space-saving DIN rail mounting and durable housing streamline installation while minimizing maintenance needs. By ensuring secure readback signals and protecting against electrical surges, it reduces downtime, supports compliance with global safety requirements, and strengthens overall system dependability in industrial automation.

Why Phoenix Contact PSR-SCP-24UC/URM/3X1/3X2?

Because it combines force-guided safety contacts, compact design, and international certifications, this relay stands out as a dependable choice for secure signal switching. It maximizes system uptime, simplifies proof testing, and ensures safe readback, making it a trusted component in environments where reliable safety control is not optional but essential.

What Problem Does It Solve?

The PSR-SCP-24UC/URM/3X1/3X2 solves the challenge of safe signal coupling and reliable feedback in automation systems. It prevents undetected faults in critical control loops, ensures confirmation of switching operations, and supports compliance with functional safety standards. This directly addresses industry needs for reduced downtime, improved worker protection, and consistent machine reliability.

Key Features & Specifications – Phoenix Contact PSR-SCP-24UC/URM/3X1/3X2 : 2981839

Download PSR-SCP-24UC/URM/3X1/3X2 2981839 Datasheet

Commercial Data – Phoenix Contact PSR-SCP-24UC/URM/3X1/3X2 : 2981839

The Applications

1. Machine Safety in Automotive Assembly

Automotive production lines rely on precise safety systems to protect workers and equipment. Emergency stop buttons and safety gates need reliable confirmation that signals are not only switched but also monitored. The PSR-SCP-24UC/URM/3X1/3X2 relay addresses this by using force-guided contacts, which prevent unnoticed failures such as welded relays. Its compact 22.5 mm housing saves valuable control cabinet space, while certification to SIL and Performance Level standards ensures compliance with global safety regulations. Surge protection shields the device against disturbances from welding equipment and high-power motors, allowing continuous and dependable operation in demanding automotive environments.

2. Valve Control in Process Automation

Chemical and energy plants require safe, isolated switching for actuating solenoid valves in pipelines or tanks. The PSR-SCP-24UC/URM/3X1/3X2 ensures electrical separation between low-power control circuits and the high-power coils of valves, reducing risks of backfeed or noise into controllers. Force-guided contacts provide reliable readback signals so operators know if the command path is intact. Its ability to function across wide ambient temperatures supports performance in both indoor and exposed environments. With a mechanical lifetime of up to 10 million cycles, the relay guarantees dependable operation for critical valve actuation, improving plant safety and reducing unexpected downtime.

3. Packaging Machinery with High-Speed Demands

Modern packaging equipment cycles rapidly and often stops or restarts during operation. This creates a high demand for durable and fast-responding safety relays. The PSR-SCP-24UC/URM/3X1/3X2 meets these needs with quick restart times and long mechanical service life. When operators open a guard door, the relay ensures an immediate stop, and once closed, the restart is swift to maintain production efficiency. Its confirmation contacts give feedback to controllers, preventing unverified restarts. The slim profile of the housing allows multiple relays to be installed side by side, maximizing cabinet space while ensuring the highest safety standards for machinery operators.

4. Building Automation and Fire Protection Systems

In large facilities, fire protection systems often require reliable signal coupling between detection equipment and actuators controlling fire or smoke doors. The PSR-SCP-24UC/URM/3X1/3X2 is used to confirm that commands are properly executed, providing both switching and feedback in one device. The use of force-guided contacts ensures that any failure is immediately identified. Its robust design allows continuous operation under fluctuating building conditions, including temperature changes and electrical interference from lighting or HVAC systems. With international safety certifications, this relay supports compliance with strict building codes while enabling facility managers to maintain dependable fire protection and occupant safety.

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