$ 274.62
Phoenix Contact PSR-MC50-3NO-1DO-24DC-SP safety relay, SIL3, PL e. Compact 12.5 mm design with dual-channel monitoring for reliable machine safety.
The Phoenix Contact PSR-MC50-3NO-1DO-24DC-SP safety relay is a compact, high-performance device built to ensure machine and operator safety. Designed for two-channel monitoring of non-equivalent signal sources, it achieves the highest international safety levels up to SIL 3 and Performance Level e, Category 4. With a slim 12.5 mm housing, it minimizes cabinet space usage while delivering three independent enabling current paths plus a digital output for reliable system integration. Supporting both manual and automatic restart functions, it enables flexible adaptation to diverse safety requirements, making it ideal for industrial environments where compactness and dependable protection are critical.
The PSR-MC50-3NO-1DO-24DC-SP combines compact size with advanced safety functionality to safeguard equipment and personnel. Its dual-channel configuration enhances diagnostic coverage and fault tolerance, while force-guided relay contacts provide predictable, fail-safe switching. Integrated LED indicators make status monitoring straightforward, which reduces downtime and simplifies commissioning. Designed to operate in a wide temperature range, the relay performs reliably even in demanding conditions. Typical uses include securing access doors, monitoring magnetic switches, and handling emergency stop signals. By integrating this safety relay, manufacturers benefit from reduced risk, compliance with strict safety standards, and improved efficiency through easier installation and maintenance.
The PSR-MC50-3NO-1DO-24DC-SP is the ideal choice when safety, space efficiency, and flexibility must work together. Unlike bulky alternatives, it delivers full SIL 3 and PL e protection in a housing just 12.5 mm wide, freeing up valuable cabinet space. Its ability to combine automatic and manual restart options in one unit makes it versatile for different plant setups. Designed by Phoenix Contact, it ensures not just compliance but confidence in every critical application.
Industrial facilities often struggle with balancing strict safety compliance and limited installation space. The PSR-MC50-3NO-1DO-24DC-SP solves this challenge by integrating multiple enabling paths and a digital output into a single, compact device. It prevents unsafe machine operation by monitoring signal inputs with dual-channel reliability, ensuring faults are detected and addressed before harm occurs. This makes it an essential safeguard against unexpected equipment hazards while simplifying maintenance and reducing downtime.
| Feature | Details | Benefit |
|---|---|---|
| Safety Certification | SIL 3 (EN IEC 62061), Cat. 4 / PL e (EN ISO 13849-1) | Meets the highest global safety standards, ensuring operator and equipment protection |
| Housing Width | 12.5 mm slim design | Saves valuable space in control cabinets for more efficient layouts |
| Channels | 2-channel, non-equivalent monitoring | Provides fault tolerance and reliable signal validation |
| Enabling Outputs | 3 NO safety paths + 1 digital output | Ensures multiple circuits can be controlled safely and independently |
| Restart Options | Manual or automatic monitored start | Flexible integration for different system requirements |
| Input Voltage | 24 V DC (20.4…26.4 V DC range) | Stable and compatible with common industrial power systems |
| Operating Temperature | –40 °C to +55 °C | Reliable operation in diverse and demanding environments |
| Switching Capacity | Up to 6 A at 250 V AC/DC | Handles higher loads safely without external relays |
| Service Life | 10 million mechanical cycles | Long lifespan reduces maintenance and replacement costs |
| Status Indication | Multiple LED indicators (power, status, fault) | Quick diagnostics, less downtime during commissioning |
| Mounting | DIN rail (vertical or horizontal) | Fast, secure installation in various cabinet setups |
| Connection Type | Push-in pluggable terminals | Simplifies wiring and speeds up replacement or maintenance |
Download PSR-MC50-3NO-1DO-24DC-SP 2700564 Datasheet
| Commercial Data | Details |
|---|---|
| GTIN Number | 4046356912679 |
| Tariff Number | 85371098 |
| Weight (Excl. Packing) | 170.8 g |
| Country of Origin | Germany |
Automated assembly lines require reliable control of access doors to prevent operators from entering during hazardous motion. The PSR-MC50 uses dual-channel monitoring to validate both door sensors before re-enabling power. If one sensor is faulty or bypassed, the system safely shuts down all outputs. Its compact design fits easily into crowded control panels, while LED indicators guide technicians in quickly diagnosing which input caused the stop, ensuring faster troubleshooting and reduced downtime.
Material transport systems often rely on linear actuators with magnetic position switches. By supervising two independent signals, the PSR-MC50 ensures precise detection of end limits. With a response time under 175 ms, the relay reacts quickly to stop equipment before damage occurs. The option for automatic or manual restart allows engineers to choose the best method depending on load and process needs. This enhances operational safety while maintaining productivity in high-demand environments.
High-speed packaging machines must be secured with emergency stop buttons at several operator points. The PSR-MC50 connects these E-Stop devices in a dual-channel circuit, immediately cutting power if a button is pressed or a channel fails. Its three enabling outputs allow multiple machine sections, such as conveyors and sealing units, to shut down simultaneously. This centralized approach reduces wiring complexity, ensures synchronized stops across equipment, and delivers robust protection for personnel working near fast-moving machinery.
Robotic systems often use light curtains to detect intrusions into restricted zones. The PSR-MC50 validates both OSSD channels from the light curtain, ensuring signal integrity before enabling motion. If the light field is interrupted, the relay cuts power instantly to halt robotic movement. Its diagnostic functions help identify wiring faults or short circuits early, preventing unsafe conditions. This combination of rapid shutdown and fault detection makes it highly effective for safeguarding workers in robotic environments.
| Category | Model / Name | Part Number | Benefit / Use |
|---|---|---|---|
| Accessory – Crimping Tool | CRIMPFOX 6 Crimping Pliers | 1212034 | For preparing ferrules (0.25–6.0 mm²) to ensure reliable wiring connections with the PSR-MC50 push-in terminals |
| Accessory – Terminal Block | Pluggable Push-in Terminal Block | Standard with PSRmini series | Enables fast wiring, easy replacement, and secure electrical connections |
| Accessory – End Cover / Spacer | End cover for PSRmini modules | (various, depending on cabinet width) | Provides insulation and spacing between adjacent modules on DIN rail |
| Related Product – Safety Relay Variant | PSR-MC40-2NO-24DC | 2700563 | Alternative compact safety relay with two enabling paths, suitable for lighter applications |
| Related Product – Safety Relay Variant | PSR-MC30-24DC/ESM | 2700562 | Emergency stop monitoring relay for simpler machine safety requirements |
| Accessory – DIN Rail | NS 35/7.5 Standard DIN Rail | 0800886 | Standard mounting rail for securing the PSR-MC50 in control cabinets |
| Accessory – Ferrules | AI Series Ferrules | Various part numbers | Ensure proper crimping of conductors for reliable push-in connections |
For expert guidance before placing your order.
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.
