Relpol RSR95-75D20-DC Solid State Relay, 4-32V DC Input, 0-75V DC Output, 20A

The Relpol RSR95-75D20-DC is a high-performance solid state relay engineered for precise and efficient DC switching in demanding environments. By utilizing semiconductor technology, this relay eliminates the mechanical wear associated with traditional electromechanical relays, ensuring a significantly longer operational lifespan and consistent performance. It is designed to handle control signals ranging from 4V to 32V DC, providing a versatile interface for various automation controllers and logic circuits while managing load voltages up to 75V DC with a maximum current capacity of 20A.

Advantages

This solid state relay offers silent operation, making it an excellent choice for noise-sensitive environments where traditional clicking relays are unsuitable. Its fast switching speed allows for high-frequency operation, which is essential for precise process control. Furthermore, the device provides high isolation between the input and output circuits, enhancing the safety and reliability of the connected electronic systems. The robust construction ensures durability even under frequent switching cycles, reducing maintenance requirements and downtime in industrial applications.

Suitable for

• Industrial automation systems
• Process control equipment
• DC motor control applications
• Heating element regulation
• Electronic switching in logic circuits

When it may not be suitable

This relay is specifically designed for DC switching applications and is not compatible with AC load voltages. It should not be used in environments where the load current exceeds the 20A limit, as this may lead to overheating or permanent damage to the internal semiconductor components.

Key specifications

• Control voltage range: 4-32V DC
• Load voltage range: 0-75V DC
• Maximum load current: 20A
• Switching type: Solid state (semiconductor)
• Silent and fast operation

How to use

To use the Relpol RSR95-75D20-DC, connect the control signal wires to the input terminals, ensuring the voltage remains within the specified 4-32V DC range. Connect the load circuit in series with the output terminals, verifying that the load voltage does not exceed 75V DC and the current remains at or below 20A. Proper heat dissipation should be considered if the relay is operated at its maximum current capacity for extended periods.

What to consider before purchase

• Verify that your control signal is DC and within the 4-32V range.
• Ensure the load circuit is DC and does not exceed 75V.
• Confirm that the maximum load current does not exceed 20A.
• Assess the need for additional heat sinking based on your specific load and duty cycle.

Usage recommendations

For optimal performance and longevity, ensure the relay is mounted in a well-ventilated area to prevent thermal buildup. Always verify polarity during installation to avoid damage to the input and output stages.