$ 52.21
Weidmuller UR20-4DI-P digital input module with 4 channels, P-switching support, sensor power supply, and reverse polarity protection for industrial automation.
Weidmuller UR20-4DI-P digital input module with reverse polarity protection is a compact remote I/O component designed to reliably capture digital signals from industrial sensors, switches, and proximity devices. It provides four digital input channels compliant with IEC 61131-2 Type 1 and Type 3 requirements, supporting P-switching sensor configurations. The module supplies power directly to connected sensors through the input circuit, helping to reduce external wiring. Built-in reverse polarity protection enhances operational safety, while the slim 11.5 mm housing enables high-density installation in space-limited control cabinets.
The UR20-4DI-P is engineered for consistent signal acquisition in demanding automation environments. Configurable input filtering ensures stable performance even under electrical interference, while fast signal processing supports accurate detection of rapidly changing inputs. Electrical isolation between internal circuits helps protect control systems and improves overall system robustness. Designed for distributed remote I/O architectures, the module integrates smoothly into modern automation platforms, making it well suited for machine automation, control panels, and decentralized I/O systems where reliability, simplified wiring, and efficient commissioning are essential.
Why Weidmuller UR20-4DI-P?
The Weidmuller UR20-4DI-P stands out as a smart choice for engineers who need reliable digital signal acquisition without sacrificing panel space or system flexibility. Its slim design, integrated sensor power supply, and built-in protection features reduce wiring complexity and improve overall system robustness. Designed for distributed remote I/O architectures, it fits seamlessly into modern automation concepts where scalability, clean cabinet layout, and long-term operational stability are just as important as technical performance.
What problem does it solve?
The UR20-4DI-P solves the challenge of safely and accurately collecting digital signals from field devices in industrial environments where space, noise, and reliability are constant concerns. It minimizes wiring effort by powering sensors directly, protects systems against wiring errors through reverse polarity protection, and maintains signal integrity even in electrically harsh conditions. This results in faster commissioning, fewer faults, and more dependable machine and process control operation.
| Feature | Details | Benefit |
|---|---|---|
| Digital Input Channels | 4 digital inputs | Enables compact and cost-efficient signal acquisition for small to medium I/O requirements |
| Input Type | P-switching digital inputs | Ensures compatibility with commonly used industrial sensors and switches |
| IEC Compliance | IEC 61131-2 Type 1 and Type 3 | Guarantees reliable signal interpretation according to international PLC standards |
| Sensor Connection Options | 2-wire, 3-wire, 3-wire with functional earth | Provides flexible sensor integration across different field device types |
| Integrated Sensor Power Supply | Sensor power provided via input circuit | Reduces external wiring and simplifies panel design |
| Reverse Polarity Protection | Built-in protection on inputs | Prevents damage caused by wiring errors, improving system reliability |
| Input Voltage Thresholds | Logic high >11 V, logic low <5 V | Ensures clear and stable signal detection in industrial environments |
| Input Frequency | Up to 1 kHz | Supports fast-changing digital signals for responsive machine control |
| Input Filtering | Configurable input filter | Improves noise immunity and signal stability |
| Galvanic Isolation | 500 V DC isolation between current paths | Protects control systems from electrical interference and faults |
| Diagnostics | Integrated module-level diagnostics | Simplifies troubleshooting and reduces downtime |
| Process Data Width | 4-bit process data | Efficient data handling for control systems |
| Housing Width | 11.5 mm slim design | Maximizes I/O density in space-constrained control cabinets |
| Mounting | TS 35 DIN rail | Enables quick and standardized installation |
| Operating Temperature | -20 °C to +60 °C | Suitable for a wide range of industrial environments |
| Protection & Safety | UL, RoHS compliant | Supports regulatory compliance and safe long-term operation |
| System Integration | Distributed remote I/O architecture support | Allows scalable and modular automation system design |
Download Weidmuller UR20-4DI-P (1315170000) Datasheet
| Commercial Data | Details |
|---|---|
| EAN (GTIN) | 4050118118254 |
| Net Weight | 87 g |
Automated assembly systems depend on accurate digital feedback from limit switches, proximity sensors, and operator push buttons to maintain consistent cycle timing. The UR20-4DI-P is applied to capture these signals across multiple workstations while maintaining a compact control cabinet layout. Its P-switching input design allows direct connection to common industrial sensors, while integrated sensor power reduces external wiring requirements. Configurable input filtering helps suppress electrical noise generated by motors and drives, preventing false triggering. Fast signal recognition ensures reliable detection of part presence, actuator positions, and process states, supporting stable production throughput and reducing unexpected machine interruptions.
Packaging and material handling equipment requires dependable digital inputs to track product flow, sealing positions, and conveyor status. The UR20-4DI-P is used to collect signals from photoelectric sensors, end-position switches, and safety devices in space-limited control enclosures. Its slim module width allows high I/O density without expanding cabinet size. Reverse polarity protection safeguards the module during maintenance or sensor replacement, reducing the risk of downtime caused by wiring errors. By supplying power directly to connected sensors, the module simplifies cable routing and improves reliability in machines with frequent movement and repetitive operating cycles.
In process environments such as water treatment, chemical processing, or utilities infrastructure, digital inputs are essential for monitoring valve positions, pump states, and level switches. The UR20-4DI-P supports these applications by providing electrically isolated input channels that protect control systems from voltage disturbances and long cable runs. Stable voltage thresholds ensure clear differentiation between on and off states, even in electrically noisy installations. Integrated diagnostics assist maintenance teams in identifying wiring or sensor issues quickly. The module’s flexible wiring options allow integration with both existing and newly installed field devices across distributed control cabinets.
OEMs and system integrators often build modular skids that must be assembled quickly and expanded over time. The UR20-4DI-P is used within these systems to capture digital signals from door switches, pressure switches, and actuator feedback devices located close to the machine. Its compact design supports dense I/O layouts while keeping enclosures small and transportable. Integrated sensor power and simplified wiring reduce assembly time during manufacturing. As system requirements grow, additional modules can be added without redesigning the I/O structure, supporting scalable and flexible automation concepts.
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