SSR-25DD, SSR-40DD, SSR-10A to SSR-100A Single Phase Solid State Relay Modules | DC 3-32V Input, DC 5-60V Output | Voltage Transformer

The SSR-25DD, SSR-40DD, SSR-60DD, SSR-80A, and SSR-100A single phase solid state relay modules are designed for reliable and efficient DC-to-DC switching applications. Available in various current capacities, these SSR modules are versatile components that cater to a wide range of industrial and commercial needs. With a DC 3-32V input and DC 5-60V output, these relays provide consistent performance across different systems, making them essential for applications requiring precise and noise-free switching.

Key Features

1. Wide Current Range:
   • These SSR modules come in multiple current ratings, from 10A to 100A, allowing you to select the most appropriate model for your specific application. This flexibility ensures that your system can handle the required load without compromising performance.
2. Solid State Reliability:
   • Unlike mechanical relays, solid state relays have no moving parts, which significantly enhances their durability and longevity. This means fewer replacements and less maintenance over the life of the relay, making them a cost-effective solution for long-term use.
3. Heat Dissipation and Cooling Requirements:
   • Heat management is crucial when using solid state relays, especially in high-current applications. For loads exceeding 10A, the SSR must be mounted on a suitable radiator to prevent overheating. Additionally, when the load current exceeds 60A, it’s necessary to use a cooling fan to ensure optimal operation. Applying thermal grease between the SSR and the radiator improves heat transfer and enhances cooling efficiency.
4. Application Versatility:
   • The SSR modules are suitable for controlling both resistive and inductive loads. It’s important to consider the load type when selecting your relay, as the load ratio varies: 60% for resistive loads and 30% for inductive loads. These relays are ideal for applications such as motor drives, heating elements, lighting circuits, and more.

Important Installation Notes

When installing SSR modules, it’s vital to select the correct type based on your current and control mode requirements. This ensures the relay functions correctly within your system and avoids potential failures due to mismatches.

1. Choosing the Right Model:
   • Ensure that you choose an SSR model with a current rating that matches or exceeds your system’s requirements. This will help avoid overheating and ensure reliable operation.
2. Proper Heat Management:
   • Always install SSRs with an appropriate heat dissipation system. For current loads above 10A, a radiator is essential, and for loads over 60A, a cooling fan becomes necessary. This not only extends the life of the relay but also maintains consistent performance.

Application Examples

• Industrial Automation: Ideal for environments requiring silent and durable operation.
• HVAC Systems: Used in controlling fans, compressors, and heating elements.
• Lighting Control: Suitable for commercial and industrial lighting systems.