Relpol RSR52-48D25 Single-Phase Solid State Relay 25A 480V AC 4-32V DC

The Relpol RSR52-48D25 is a high-performance single-phase solid state relay engineered for precise and reliable switching in demanding industrial environments. By utilizing semiconductor technology, this relay eliminates mechanical wear, providing a silent and durable solution for controlling electrical loads. It is designed to handle a load voltage of up to 480V AC and supports a wide control voltage range of 4-32V DC, ensuring compatibility with various automation controllers and PLC systems.

Advantages

The primary benefit of the Relpol RSR52-48D25 is its ability to perform frequent switching operations without the degradation associated with traditional electromechanical relays. Its solid-state design ensures silent operation, which is essential for noise-sensitive environments. Furthermore, the device offers high reliability and a significantly longer service life, reducing maintenance requirements and downtime in industrial processes. The compact design allows for efficient space utilization within control cabinets.

Suitable for

• Heating element control systems
• Industrial automation and process control
• Motor starting applications
• Lighting control systems
• Frequent switching cycles in production lines

When it may not be suitable

This relay is not suitable for switching DC loads, as it is specifically designed for AC applications. Additionally, it should not be used in environments where the ambient temperature exceeds the manufacturer's specified thermal limits without adequate heat sinking or cooling measures.

Key specifications

• Load voltage: 480V AC
• Control voltage: 4-32V DC
• Rated current: 25A
• Single-phase configuration
• Silent electronic switching

How to use

To install the relay, mount it securely onto a compatible heat sink to ensure proper thermal dissipation, as solid-state relays generate heat during operation. Connect the control signal wires to the input terminals, ensuring the polarity matches the 4-32V DC requirement. Connect the AC load to the output terminals in series with the power supply. Verify all connections for tightness and ensure that the load current does not exceed the 25A rating before applying power.

What to consider before purchase

• Ensure the load current does not exceed 25A
• Verify that the control signal source provides 4-32V DC
• Confirm that the application requires AC switching
• Assess the need for an additional heat sink based on the load profile

Usage recommendations

Always use an appropriately sized heat sink to prevent overheating and ensure the longevity of the relay. Periodically inspect the electrical connections to maintain optimal performance and safety.