ABB REXA 103 / RK 852 005-PH Circuit Diagram

The **ABB REXA 103** is an electronic relay used for protection and monitoring in various power applications. The circuit diagram for a specific ABB relay like the REXA 103 can vary depending on its configuration, application, and the functions it is designed to perform.

### Finding the Circuit Diagram:

1. **User Manual and Technical Documentation**:
– The best way to obtain the correct circuit diagram is to refer to the official user manual or technical documentation provided by ABB. This documentation typically includes detailed circuit diagrams, pin configurations, connection diagrams, and other relevant information tailored to specific models.

2. **ABB Website**:
– You can visit the **ABB official website** and look for the REXA 103 product page. Many manufacturers provide downloadable resources such as manuals, technical specifications, and circuit diagrams for their products.

3. **ABB Technical Support**:
– If the required documentation is not readily available online, reaching out to ABB’s technical support can be very helpful. They often have the latest information and can provide the appropriate documentation based on model numbers.

4. **Third-Party Resources**:
– Occasionally, third-party electrical engineering forums, websites, or community resources might share circuit diagrams for various ABB models. However, verify the accuracy and reliability of any external sources.

### General Advice for Circuit Diagrams:
– **Understand the Functions**: Before interpreting or using circuit diagrams, ensure you understand the functions that the relay needs to carry out and how it integrates with the overall electrical system.
– **Identify Connections and Components**: Familiarize yourself with connecting terminals, power supply requirements, input and output signals, as well as any protection elements inherent to the circuit.
– **Safety Precautions**: Always adhere to safety protocols when working with electrical components. Ensure the system is powered down before making any connections or alterations.

If you have more specific needs or details about the REXA 103, please let me know, and I can assist further!