Shenler RFT vs. RNC Interface Relays: A Detailed Comparison

In industrial automation and control systems, interface relays play a crucial role in signal isolation, amplification, and ensuring reliable performance. Shenler offers a range of interface relays designed for diverse applications. This blog post provides a detailed comparison of two popular series: the RFT and RNC interface relays, highlighting their key features, specifications, and applications to help you make an informed decision.

Overview of Shenler RFT Interface Relays

The Shenler RFT series is designed to provide quick and easy LED visibility to determine if it is working. It also features a lockable test button when on-site testing is required.

Key Features of RFT Relays:

• Slim and Compact Size: Ideal for installations where space is at a premium.
• Non-Polarity LED: Indicates the relay's operational status, enhancing troubleshooting and maintenance.
• Lockable Test Button: Allows for on-site testing, ensuring the relay functions correctly without needing external equipment.
• Colour-Coded Test Button (AC Red/DC Blue): Simplifies the identification of AC and DC coils, reducing the risk of incorrect wiring.
• RoHS Compliance: Conforms to the Restriction of Hazardous Substances directive, ensuring environmental friendliness.

Overview of Shenler RNC Interface Relays

The Shenler RNC series excels in providing compact solutions for space-saving applications. These ultra-slim interface relays are commonly used in programmable logic controllers (PLC), computer numerical control (CNC) systems, robotics, and intelligent manufacturing.

Key Features of RNC Relays:

• LED Indicator: Provides a clear indication of the relay's status.
• Bus Jumper: Facilitates easy circuit extension and simplifies wiring.
• Bridge Rectifier Circuit: Allows the relay to accommodate both AC and DC voltages, increasing its versatility.
• Surge Absorber: Protects the relay from voltage spikes, enhancing its reliability and lifespan.
• Accommodates AC and DC Voltages: Suitable for a wide range of power supplies, making it adaptable to different control systems.

Detailed Comparison Table: Shenler RFT vs. RNC Interface Relays

Choosing the Right Relay for Your Application

Selecting the appropriate interface relay depends on the specific requirements of your application.

• Choose RFT Series if:
  • On-site testing is required to ensure proper functionality.
  • Clear indication of coil type (AC/DC) is needed for easy wiring.
  • Depending on the specific models, the RFT series might offer higher current ratings for more demanding applications.

• Choose RNC Series if:
  • Space is limited and a compact design is crucial.
  • The RNC series' slim profile makes it particularly well-suited for applications where high-density mounting is required, such as in PLC and CNC systems.
  • Signal isolation and amplification are primary concerns.

Conclusion

Both the Shenler RFT and RNC interface relay series offer unique advantages tailored to different applications. The RFT series excels in providing compact solutions with user-friendly features, while the RNC series is ideal for applications requiring signal isolation, surge protection, and adaptability to various voltage types. By carefully evaluating your specific needs and considering the features of each series, you can select the optimal interface relay for your control system.

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