Solid State Relay（SSR）

In the field of modern industrial control and automation, Solid State Relays (SSRs) are gradually replacing traditional electromagnetic relays due to their high reliability, long lifespan, and contactless switching characteristics. Today, let's delve into Mibbo's AC/DC input single-phase output series—the SA Series (with optional AC or DC input control). With its exceptional performance and wide range of application scenarios, it provides a more efficient and stable solution for the industrial control sector. The Mibbo SA Series AC/DC input single-phase output SSR utilizes advanced DBC (Direct Bonded Copper) substrate technology. This design not only enhances the product's thermal conductivity but also ensures stable operation in harsh industrial environments. Whether it's for applications such as high and low-temperature chambers, plastic machinery, incubators, elevators, or others, the SA Series SSR can meet your needs with outstanding performance. 01 Contactless, Sparkless, and Ultra-ProtectiveSSRs are contactless switches composed of microelectronic circuits, discrete electronic components, and power electronic devices. They operate without noise interference.There is optical isolation between the input and output terminals, employing an internal operating mode that requires no internal contact operation. 02 High-Temperature Resistant and Flame-Retardant Inner CaseThe case is made of flame-retardant material and equipped with a transparent protective cover. It offers excellent insulation properties, effectively prevents dust, significantly enhances product safety, and can significantly improve work efficiency. 03 DBC Substrate for High Thermal ConductivityEffectively transfers heat generated by the device to the heatsink, improving the SSR's heat dissipation efficiency, reducing the operating temperature of the device, and extending its lifespan. 04 Optional Built-in RC, MOV, and TVS ProtectionProtection methods can be selected based on specific load types, working environments, and requirements. 05 Optional Zero-Crossing/Random Turn-OnUsers can choose the appropriate relay type based on specific application needs to improve system performance and reliability. Application Background:Meltblown fabric equipment is crucial for producing meltblown fabric. It works by heating and melting polymer raw materials, then using high-speed airflow to spin them into a web, ultimately forming meltblown fabric. Application Solution:On a large-scale meltblown fabric production line, we utilized the SA Series SSR to control key equipment such as heaters and fans.The precise control and ability to endure harsh environments of the SA Series SSR enabled the equipment to operate stably under various complex conditions, while also reducing equipment failure rates and maintenance costs. SSRs generate significant heat, so when using load currents above 10A, a heatsink should be used in conjunction. Thermal grease should be applied between the SSR substrate and the heatsink (for currents above 60A, additional forced cooling with a fan is required).