Slim DIN rail mount solid state relay

FEATURES

1. 24.3mm width for space-saving design 
2. Rated current: 10~40A 
3. Built-in RC 
4. With LED indicator 
5. Zero cross or random turn-on 
6. DC or AC control 
7. DIN Rail or panel mount installation

DIMENSIONS

PRECAUTIONS

1.When selecting a solid state relay (SSR), please consider the actual load current and operating ambient temperature.
It is critical to select an SSR that can handle the maximum load current expected for the application. Exceeding the rated current can cause the SSR to fail prematurely. Additionally, the ambient temperature in which the SSR operates can significantly affect its performance. Higher temperatures reduce the current carrying capacity of the SSR, so both the maximum load current and ambient temperature must be considered to ensure reliable operation.

2.For good cooling, SSRs require air convection. Insufficient convection air will cause abnormal heating.
Proper cooling is critical to the life and efficiency of solid-state relays (SSRs). Air convection helps dissipate the heat generated during operation. If the SSR is installed in a confined space with restricted airflow, it may cause excessive heat buildup, resulting in SSR malfunction or failure. To enhance cooling, consider positioning the SSR in a way that maximizes airflow or use other ventilation methods to ensure adequate airflow around the device.

3.If there is no gap between the two SSRs (zero gap between the two SSRs), please reduce the load current.
When solid-state relays (SSRs) are mounted close to each other, the heat generated by a single SSR can affect the performance of adjacent units. This can lead to overheating and potential failure. To reduce this risk, it is recommended to reduce the load current per SSR when mounting the SSRs without gaps. Alternatively, consider using a heat shield or increasing the spacing between SSRs to improve heat dissipation.

4.Forced cooling (fans inside the cabinet) significantly improves thermal performance.
Implementing forced cooling, such as installing fans inside the SSR cabinet, can significantly enhance thermal management. This active cooling method ensures that airflow is always flowing through the SSR, effectively dissipating heat and maintaining optimal operating temperature. Forced cooling also ensures that higher load currents can be used safely, as it helps prevent overheating and prolongs the life of the SSR.

5.Please check that the heat sink temperature does not exceed 90℃ in any case.
Monitoring heat sink temperature is critical to the safe operation of solid state relays (SSRs). Heat sink temperatures exceeding 90°C may indicate that the SSR is operating beyond its safe thermal limits, which may result in failure or performance degradation. Heat sink temperature should be checked regularly using appropriate measurement equipment and cooling solutions implemented when the temperature approaches this threshold. Keeping heat sink temperature below 90°C ensures reliable operation of the SSR and extends its service life.

PARAMETER TABLE