The Sensata A4825 Solid State Relays (SSRs) are industrial-grade, high-power switching devices designed for use in harsh industrial environments. They are specifically designed to replace electromechanical relays and contactors by providing reliable, efficient, and silent switching of AC loads. The A4825 features a contact rating of up to 25A, 480VAC, and can switch up to 40A for up to 60 seconds. The SSR's rugged design includes a reinforced PCB, an epoxy molded casing for shock and vibration resistance, and reinforced terminals to ensure reliable operation in harsh industrial conditions. The A4825 is suitable for a variety of applications such as machinery, automation, and process control in the industrial automation, HVAC, and automotive industries.