Phoenix Contact PLC-RPT-230UC/21-21AU/RWF Relay Module

Why Phoenix Contact PLC-RPT-230UC/21-21AU/RWF?
Choose the Phoenix Contact PLC-RPT-230UC/21-21AU/RWF for its precision engineering and proven reliability in harsh environments. Designed to excel where vibration, temperature variation, and electrical noise challenge ordinary relays, it combines gold-plated contacts with superior insulation and a compact, easy-to-install housing—ensuring uninterrupted performance and dependable signal transmission in railway and automation systems.

What Problem Does It Solve?
This relay module tackles the constant challenge of unstable signal switching and contact degradation in heavy-duty environments. By providing strong electrical isolation, vibration resistance, and consistent switching performance, it eliminates downtime caused by unreliable relays. It’s the perfect solution for maintaining safe, efficient, and maintenance-free operation in rail networks, control panels, and industrial automation systems.

Key Features & Specifications – Phoenix Contact PLC-RPT-230UC/21-21AU/RWF: 2900345

Download Phoenix Contact PLC-RPT-230UC/21-21AU/RWF (2900345) Datasheet

The Applications of Phoenix Contact PLC-RPT-230UC/21-21AU/RWF

1. Railway Signal Interlocking & Control Systems
In railway signal networks, precise logic and safe isolation between control circuits are crucial. The PLC-RPT-230UC/21-21AU/RWF serves as a dependable relay interface that separates low-voltage signal commands from high-power switching lines. Its gold-plated contacts and 6 kV isolation help maintain accuracy under vibration, shock, and fluctuating environmental conditions. This ensures that track signals and safety logic remain consistent, reducing the risk of false activations and keeping the entire signaling system stable and reliable over long service periods.

2. Automated Track Detection and Monitoring
Railway track monitoring systems depend on reliable relay communication between sensors and controllers. The module’s wide operating voltage range and stable performance under harsh conditions allow accurate signal transfer even in tunnels or outdoor environments. Its vibration-resistant structure prevents contact fatigue, ensuring continuous operation of train detection loops. This reliability minimizes maintenance frequency and prevents downtime in systems where accurate train position feedback is critical to safe and efficient rail movement.

3. Industrial PLC-to-Device Switching Interface
In industrial automation, control systems require safe connections between programmable controllers and power-driven field devices such as pumps or actuators. The PLC-RPT-230UC/21-21AU/RWF acts as a protective interface, isolating the PLC from electrical noise and surges. Its Push-in terminals allow quick wiring without tools, while durable AgNi contacts ensure stable switching even with frequent load cycles. This improves signal integrity, prolongs PLC lifespan, and helps factories maintain continuous production without unexpected control circuit failures.

4. Tunnel and Infrastructure Lighting Control
Large tunnel and transit lighting systems experience heavy electrical surges when circuits activate simultaneously. The relay module’s strong contact capacity and high inrush tolerance make it suitable for managing these loads. Its compact DIN-rail design simplifies installation in confined control panels, and the module’s flame-retardant housing enhances safety in enclosed environments. By ensuring consistent switching and long-term performance, it helps operators maintain reliable illumination and minimize service interruptions in public infrastructure systems.