Relpol RSR95-48D50-DC Solid State Relay, 4-32V DC Control, 0-48V DC Load, 50A

The Relpol RSR95-48D50-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 silent switching performance. It is designed to handle control voltages between 4V and 32V DC, while managing load voltages from 0V to 48V DC with a robust current capacity of up to 50A.

Advantages

The primary benefit of the Relpol RSR95-48D50-DC is its ability to perform high-speed switching without the noise or physical degradation found in mechanical contactors. Its solid-state construction provides excellent resistance to vibration and shock, making it highly reliable for continuous industrial operations. Furthermore, the wide control voltage range offers flexibility for integration into various control circuits, while the high current rating ensures it can handle significant power loads with minimal heat dissipation when properly mounted.

Suitable for

• Industrial automation systems
• Heating element control
• DC motor speed regulation
• Power management and distribution systems
• Lighting control applications

This relay is not suitable for AC load switching, as it is specifically designed for DC applications. It should also not be used in environments where the ambient temperature exceeds the thermal limits of the device without adequate heat sinking, as this may lead to premature failure or performance degradation.

Key specifications

• Control voltage range: 4-32V DC
• Load voltage range: 0-48V DC
• Maximum load current: 50A
• Switching type: Solid state (semiconductor)
• Mounting style: Panel mount

To use the Relpol RSR95-48D50-DC, ensure the device is securely mounted to a suitable heat sink to dissipate heat generated during operation. Connect the control signal wires to the input terminals, observing the correct polarity, and connect the load circuit to the output terminals. Verify that the load current and voltage do not exceed the specified maximum ratings to prevent damage to the internal components.

What to consider before purchase

• Ensure the load voltage and current requirements match the relay specifications.
• Verify that a compatible heat sink is available for your installation.
• Check that the control signal source provides a voltage within the 4-32V DC range.
• Confirm the mounting space is sufficient for the relay and heat sink assembly.

For optimal performance and longevity, always use a thermal interface material between the relay base and the heat sink, and ensure adequate airflow around the installation area to maintain operating temperatures within safe limits.