$ 172.50
Phoenix Contact PSR-SPP-24UC/ESAM4/3X1/1X2/B safety relay for SIL 3 emergency stop and safety door control. Compact, reliable, and easy to install.
The Phoenix Contact PSR-SPP-24UC/ESAM4/3X1/1X2/B safety relay is designed for reliable emergency stop and safety door monitoring in industrial systems. It supports safety levels up to SIL 3 and Performance Level e, ensuring compliance with global machine safety standards. With dual-channel control and three enabling current paths, the relay enhances protection while maintaining operational efficiency. Operating on 24 V DC, its compact form factor with pluggable push-in terminals makes installation straightforward. By combining both manual and automatic reset functions in one unit, it provides a flexible safety solution for engineers focused on reducing downtime and safeguarding operators.
This safety relay offers practical advantages for everyday use in automated environments. Its slim 22.5 mm housing saves control cabinet space, while integrated LED indicators simplify monitoring and fault detection. Designed with durable, force-guided contacts rated for millions of cycles, it provides long service life and dependable operation. Quick wiring through push-in technology speeds up setup and reduces commissioning time. From safeguarding presses and conveyor systems to controlling safety doors in production lines, the relay delivers a balanced mix of reliability, flexibility, and ease of use. Manufacturers benefit from both enhanced operator safety and reduced maintenance costs.
Why PSR-SPP-24UC/ESAM4/3X1/1X2/B?
Because it combines high-level safety certification with compact design, the PSR-SPP-24UC/ESAM4/3X1/1X2/B safety relay is the smart choice for engineers seeking reliability and efficiency. It unites manual and automatic reset in one unit, saving space while reducing complexity, making it a versatile safety backbone for modern industrial automation.
What problem does it solve?
This relay solves the critical challenge of safeguarding people and machinery without slowing production. By enabling secure emergency stops and safety door monitoring up to SIL 3, it eliminates downtime caused by safety failures. Its intuitive wiring, quick diagnostics, and durable design address both compliance demands and the need for uninterrupted workflow.
| Feature | Details | Benefit |
|---|---|---|
| Nominal Input Voltage | 24 V DC (-15% / +10%) | Optimized for standard industrial power supplies |
| Safety Certification | SIL 3 (EN IEC 62061, IEC 61508), Cat. 4 / PL e (EN ISO 13849) | Maximum operator and machine protection |
| Control Type | 2-channel | Ensures redundancy and higher safety integrity |
| Outputs | 3 enabling current paths, 1 signaling path | Multiple safety circuits with clear feedback |
| Relay Contacts | Force-guided, AgSnO₂ | Long life and secure operation under load |
| Response Time | 100–150 ms typical | Fast reaction to emergency stop conditions |
| Housing Width | 22.5 mm | Compact size saves valuable panel space |
| Connection Technology | Push-in pluggable terminal | Tool-free wiring and faster installation |
| Indicators | Multiple LED displays | Easy diagnostics and operational transparency |
| Operating Life | Up to 10⁷ mechanical cycles | Durable design lowers maintenance costs |
| Mounting Type | DIN rail, vertical or horizontal | Flexible installation in control cabinets |
| Environmental Rating | IP20 (device), IP54 (installation location) | Reliable performance in industrial conditions |
Download PSR-SPP-24UC/ESAM4/3X1/1X2/B 2900510 Datasheet
| Commercial Data | Details |
|---|---|
| GTIN Number | 4046356513784 |
| Customs Tariff Number | 85371098 |
| Weight | 159.08 g (net), 182.2 g (with packing) |
| Country of Origin | Germany (DE) |
1.Packaging Line Emergency Stop Integration
High-speed packaging machines often require instant shutdown to protect both operators and equipment. By using a dual-channel safety relay with three enabling outputs, the system maintains redundancy while guaranteeing quick reaction in the event of an emergency stop. Clear LED indicators allow technicians to diagnose issues immediately, keeping downtime short. With SIL 3 and PL e certification, the relay ensures packaging operations meet strict safety regulations, helping manufacturers avoid both accidents and costly production interruptions.
2.Safety Door Monitoring on Industrial Presses
Metal forming and stamping presses rely on protective doors to shield operators. If a door is opened while the machine is active, the safety relay enforces an immediate shutdown. Force-guided contacts combined with two-channel monitoring ensure that even if one circuit fails, the system still moves to a safe state. The option for manual or automatic restart prevents unintentional resets, ensuring presses can only be restarted under safe conditions. This increases operator confidence and minimizes risk in heavy industrial environments.
3.Robotic Assembly Line Guarding
In automated assembly cells, light curtains and safety guards are critical for keeping operators safe. The relay provides multiple enabling paths and a separate signaling contact, making it possible to cut robot power instantly while sending diagnostic information to the control system. Its compact housing saves valuable space inside crowded control cabinets, while high contact durability supports frequent switching cycles common in robotic applications. This combination of compactness, reliability, and quick reaction makes it ideal for safeguarding collaborative robotic zones.
4.Emergency Stop Networks in Heavy Machinery
Large equipment such as saws, milling machines, or CNC systems often require multiple emergency stop buttons positioned around the machine. When wired through a dual-channel safety relay, these buttons ensure redundancy and prevent a single fault from disabling the safety function. Built-in diagnostics and LED monitoring provide clear feedback, allowing maintenance teams to identify circuit issues quickly. By ensuring compliance with advanced safety standards and reducing the risk of undetected wiring faults, the relay enhances both safety and machine uptime.
| Category | Model / Name | Part Number | Benefits / Use |
|---|---|---|---|
| Coding Profile | CP-MSTB | 1734634 | Prevents mismating of plugs and headers; improves installation reliability |
| Coding Section | CR-MSTB | 1734401 | Provides mechanical keying; ensures correct terminal connections |
| Crimping Tool | CRIMPFOX 6 | 1212034 | Professional tool for ferrules, supports 0.25–6.0 mm² conductors |
| Actuator | PSR-ESS-M0-H110 | 1221757 | Anti-lock collar actuator for modular emergency stop switches |
| Module Holder | PSR-ESS-ACC-CB1-C3 | 1221747 | Connects actuator and contact module with bayonet lock; supports up to 3 elements |
| Contact Module | PSR-ESS-ACC-CB1-NC-SC | 1221752 | Force-guided N/C contact block for emergency stop systems, certified up to PL e / SIL 3 |
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.
