$ 546.48
Phoenix Contact PSR-PC52-1NO-1NC-24DC-SC safety relay with SIL 3 compliance, diagnostics, and compact 17.5mm design for reliable industrial safety.
The Phoenix Contact PSR-PC52-1NO-1NC-24DC-SC coupling relay provides secure electrical isolation and dependable power adaptation for safety-critical automation. Designed for use in applications requiring SIL 3 functional safety, it ensures stable performance in fire, gas, and process control systems. The relay integrates advanced monitoring functions for both switching states, helping detect faults early and reducing risk of system failure. With a width of just 17.5 mm, it fits neatly into space-restricted panels while delivering reliable switching and diagnostic performance. Its built-in test pulse filter prevents false trips, making it a robust choice for demanding industrial safety environments.
This coupling relay is tailored for low-demand safety operations, where consistent reliability is crucial. It continuously checks wiring integrity and responds quickly to abnormalities, minimizing downtime and safeguarding assets. Engineers benefit from clear diagnostic feedback, simplified fault handling, and reduced maintenance times. The relay is built with reinforced insulation and high-rated isolation, ensuring dependable operation even under tough industrial conditions. Quick installation is supported by plug-in screw connections, while its rugged design withstands harsh environments with wide operating temperature tolerance. Combining compact size, international safety approvals, and advanced diagnostics, the PSR-PC52-1NO-1NC-24DC-SC offers a practical and future-proof solution for safety-driven automation systems.
The Phoenix Contact PSR-PC52-1NO-1NC-24DC-SC stands out because it combines SIL 3 safety compliance, compact design, and advanced diagnostic intelligence in one relay. Unlike conventional relays, it not only switches safely but actively monitors wiring integrity and state transitions. Its slim 17.5 mm housing saves panel space, while integrated fault detection reduces downtime. This makes it a reliable and future-ready choice for industries where safety and efficiency must work hand in hand.
Industrial systems often face the challenge of ensuring safe switching under strict functional safety standards, while avoiding false trips that cause production delays. The PSR-PC52-1NO-1NC-24DC-SC solves this by offering robust isolation, real-time state diagnostics, and test pulse filtering to eliminate nuisance activations. It protects both operators and equipment by guaranteeing predictable, safe responses in hazardous scenarios. By combining compactness with powerful monitoring features, it reduces maintenance effort, enhances operational uptime, and provides peace of mind in safety-critical automation.
| Feature | Details | Benefit |
|---|---|---|
| Functional Safety | SIL 3 compliant (IEC 61508/61511) | Provides maximum safety for critical applications |
| Control Supply Voltage | 24 V DC (-15% / +10%) | Stable operation within standard automation systems |
| Contacts | 1 enabling current path (NO), 1 signaling current path (NC) | Flexible switching with safe isolation |
| Diagnostics | On/Off state monitoring with error acknowledgment | Detects faults early and reduces downtime |
| Test Pulse Filter | Integrated DCS pulse filter | Prevents false trips from control system test pulses |
| Dimensions | 17.5 mm width × 112.2 mm height × 114.5 mm depth | Saves space in compact control panels |
| Housing Color | Yellow (RAL 1018) | Easy visual identification in control cabinets |
| Insulation | Reinforced isolation up to 6 kV | Protects equipment and operators |
| Operating Temperature | -25 °C to +60 °C | Reliable in harsh industrial environments |
| Service Life | Approx. 50 million mechanical cycles | Long-lasting performance with reduced replacement needs |
| Approvals | ATEX, IECEx, UL, CE, CCC | Certified for global use and compliance |
| Mounting | DIN rail, vertical or horizontal | Quick installation with flexible positioning |
| Connection Method | Plug-in screw terminals, 0.2–2.5 mm² | Fast wiring and secure connections |
Download PSR-PC52-1NO-1NC-24DC-SC (1017062) Datasheet
| Commercial Data | Details |
|---|---|
| GTIN Number | 4055626499444 |
| Customs Tariff No. | 85364190 |
| Weight (net) | 251.5 g |
| Country of Origin | Germany (DE) |
In fire and gas protection loops, the PSR-PC52 helps ensure dependable valve actuation and alarm signaling. Traditional relays often suffer from false trips due to diagnostic pulses from controllers, but this model integrates pulse filtering to prevent nuisance shutdowns. Its SIL 3 compliance ensures it can be used in safety-critical shutdown paths without compromising reliability. The built-in diagnostics continuously check for open or short circuits, giving operators confidence in system integrity. Compact dimensions allow multiple relays to fit within space-limited safety cabinets, making it highly suited for oil refineries, chemical plants, and gas detection networks where every second counts.
Industrial burner systems require precise sequencing of purge, ignition, and fuel flow. The PSR-PC52 relay provides isolation between low-voltage controllers and high-energy field devices, ensuring that ignition transformers or fuel valves only activate under safe conditions. Its integrated diagnostics quickly detect wiring problems, reducing troubleshooting time during routine startup or safety testing. With its SIL 3 certification, the relay fits seamlessly into modern safety designs, protecting against failures in high-temperature environments. Compact mounting and plug-in connections simplify replacement during maintenance cycles, while the added signaling path gives operators clear status feedback to confirm permissive conditions for combustion operations.
Emergency shutdown systems require predictable performance when hazardous conditions arise. The PSR-PC52 ensures actuators for shutdown valves receive safe, reliable switching while maintaining electrical isolation from logic solvers. Its diagnostics provide instant fault identification, helping operators locate wiring issues before they compromise safety. The test-pulse filter allows continuous health checks from distributed control systems without triggering the valve, reducing mechanical wear and unnecessary interruptions. LED indicators on the relay body further simplify maintenance checks. With global safety approvals and SIL 3 capability, this compact relay helps process industries maintain compliance while protecting personnel, equipment, and the environment.
In water treatment plants and power facilities, critical pumps and motors must be protected against unsafe start or stop conditions. The PSR-PC52 bridges the gap between sensitive controller outputs and larger electrical loads, ensuring smooth and safe switching. Its diagnostic features confirm cable integrity before a start command is executed, avoiding unexpected faults in essential equipment. Test-pulse suppression prevents motor contactors from chattering when controllers perform routine checks, improving service life. With its narrow housing and flexible DIN rail installation, engineers can add multiple safety relays without overcrowding control panels, supporting continuous operation in demanding utility environments.
| Category | Model Name | Part Number | Benefits |
|---|---|---|---|
| Coupling Relay | PSR-PC52-1NO-1NC-24DC-SC | 1017062 | Core safety relay with SIL 3 compliance, diagnostics, and compact 17.5 mm design |
| Coding Profile | CP-MSTB | 1734634 | Prevents wrong connections, ensures correct plug-in alignment, simplifies maintenance |
| Coding Section | CR-MSTB | 1734401 | Provides keyed mating, avoids mismatched wiring, increases installation safety |
| Crimping Tool | CRIMPFOX 6 | 1212034 | Creates durable ferrule terminations, ensures reliable wiring for screw terminals |
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