SSR-3D66150A three-phase solid-state relay is a small and powerful solid-state relay produced by Hangzhou Guojing Electronic Technology Co., Ltd. The input control voltage is 3-32VDC, the output adopts single-phase thyristor reverse parallel, and has high dv/dt capability. The current specification ranges from 10A to 120A, and the output load voltage range is 40-660VAC. It greatly meets the needs of customers in various occasions. The product input and output are isolated by optocouplers, and its dielectric withstand voltage reaches 4000VAC. Epoxy resin is used for sealing, and the outer dimensions are 105mm×75mm×32mm. SSR-3DA series solid-state relays are widely used in rubber, plastic machinery, printing machinery, packaging machinery, fountain control, CNC machine tools, stage lighting and other industrial automation fields.