Phoenix Contact PSR-SCP-24UC/ESM4/3X1/1X2/B Safety Relay

Phoenix Contact PSR-SCP-24UC/ESM4/3X1/1X2/B Safety Relay – Emergency Stop & Door Monitoring

The Phoenix Contact PSR-SCP-24UC/ESM4/3X1/1X2/B safety relay provides dependable safety for emergency stop circuits and safety door applications in modern industrial systems. Designed to meet SIL 3, Category 4, and Performance Level e safety standards, it ensures rapid and secure interruption of hazardous machine functions when required. Its two-channel architecture and three enabling current paths guarantee high operational safety while keeping installation simple. Operating at 24 V DC, this compact relay is well-suited for integration into a wide range of machinery, offering manufacturers a reliable way to protect personnel and equipment in compliance with strict safety regulations.

The PSR-SCP-24UC/ESM4/3X1/1X2/B combines robust functionality with practical usability. Its force-guided relay contacts enhance fault detection, while diagnostic LEDs provide quick visual feedback during operation or maintenance. Fast response times ensure machines stop immediately when a safety event is triggered, minimizing potential risks and reducing downtime. With its durable build and long service life, it performs reliably even in challenging environments. For operators and manufacturers, the result is greater workplace safety, reduced production interruptions, and full compliance with international safety standards—making this relay an essential component in industries such as automotive, material handling, packaging, and factory automation.

Why Phoenix Contact PSR-SCP-24UC/ESM4/3X1/1X2/B?

The PSR-SCP-24UC/ESM4/3X1/1X2/B safety relay stands out because it blends proven reliability with advanced safety functions in a compact design. It supports both emergency stop and safety door monitoring, giving manufacturers a flexible solution for multiple safety needs. Its 2-channel redundancy, quick response time, and force-guided contacts ensure operators and equipment remain protected, while easy integration and diagnostic LEDs reduce setup and maintenance time.

What Problem Does It Solve?

In many industrial environments, stopping machinery instantly and safely during emergencies is critical. This relay solves the challenge of combining compliance with strict global safety standards and ensuring fast, dependable shutdowns. By managing both emergency stop circuits and safety doors within one unit, it minimizes wiring complexity, reduces downtime from faults, and helps companies maintain safe operations without sacrificing productivity.

Key Features & Specifications – Phoenix Contact PSR-SCP-24UC/ESM4/3X1/1X2/B: 2963776

Download Phoenix Contact PSR-SCP-24UC/ESM4/3X1/1X2/B 2963776 Datasheet

Commercial Data – Phoenix Contact PSR-SCP-24UC/ESM4/3X1/1X2/B: 2963776

The Applications of Phoenix Contact PSR-SCP-24UC/ESM4/3X1/1X2/B

1. Guard Door Protection in Automotive Manufacturing

In vehicle production lines, large stamping and robotic presses operate at high force, creating significant risk if guard doors are left open. This safety relay monitors dual input signals from interlock switches, ensuring the machine cannot run unless the door is securely closed. If a fault occurs, the relay instantly disconnects power through multiple enabling paths, protecting operators from hazardous motion. With its built-in diagnostic LEDs, technicians can quickly locate the issue and restore safe operation. The system reduces accident risk, keeps downtime minimal, and maintains compliance with strict automotive safety standards.

2. Emergency Stop Control in High-Speed Packaging Lines

Packaging conveyors move at high speeds, carrying cartons or bottles through filling and sealing stations. Any mechanical jam or human error requires the line to stop immediately. The PSR-SCP relay links multiple emergency stop buttons into a two-channel monitored system, ensuring that one press halts all connected drives at once. Its fast reaction time and force-guided contacts guarantee that motors and actuators disengage without delay. Operators benefit from a clear safety status display, while maintenance staff can reset the system with confidence. This ensures worker protection and minimizes production losses when rapid intervention is necessary.

3. Light Curtain Integration in Automated Warehouses

Modern warehouses rely on robotic pickers and automated palletizing systems. To safeguard personnel, light curtains are positioned around moving equipment. The PSR-SCP safety relay processes dual input signals from the light curtain, instantly disabling power when the beam is interrupted. By offering three enabling current paths, it can simultaneously shut down multiple axes or conveyor sections. The relay’s high integrity level ensures that even if one input fails, the system maintains reliable shutdown capability. This application allows material handling systems to operate efficiently while maintaining operator safety in busy, high-traffic environments.

4. CNC Machining Cell Safety Management

CNC machines combine rotating spindles, sharp tooling, and sliding enclosures, demanding a high level of operator protection. The PSR-SCP relay manages both emergency stop buttons and door interlock switches, providing redundant monitoring for every safety event. When triggered, its triple outputs can disconnect spindle drives, disable servo motors, and engage braking mechanisms simultaneously. The design prevents hidden contact failures, ensuring long-term system reliability. Maintenance teams benefit from simple fault identification through LED indicators, reducing downtime during inspections. By integrating this relay, machine builders and manufacturers achieve global safety compliance while maintaining uninterrupted production cycles.

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