Carlo Gavazzi DIA53S72450A AC Current Relay

DIA53S72450A is Carlo Gavazzi’s compact 1-phase AC overcurrent monitoring relay with an integrated current transformer, designed to monitor 5 to 50 A AC in a single‑phase line and signal when an overcurrent condition occurs. The unit is self‑powered from the monitored current and uses a 17.5 mm wide DIN‑rail housing for easy panel mounting, with a solid‑state, open‑collector output compatible with NPN/PNP logic. It provides ON/OFF monitoring for AC/DC current, with no adjustable time delay and an above‑5 A 1/3‑phase current category, making it suitable for fast protection signaling to PLCs and related control electronics. The DIA53S72450A variant includes an integrated current transformer and supports a maximum overload current of up to 200 A for 30 seconds.