Switching AC constant current source

These devices are primarily used for calibration and testing of time-delay thermal trip tests conducted on various low-voltage electrical products within the low-voltage electrical equipment industry, such as circuit breakers, thermal relays, and motor starters. Switching AC constant current sources have been rapidly adopted and widely implemented in the characteristic testing of low-voltage electrical equipment products—particularly in scenarios where protective switches and electrical components, such as circuit breakers, fuses, thermal relays, and magnetic starters, require rigorous testing of the thermal effects under specific current conditions.