Carlo Gavazzi DIA53S724100A Relay

DIA53S724100A is a 1-phase AC overcurrent monitoring relay from Carlo Gavazzi, designed for Mini DIN-rail mounting in a compact 17.5 mm DIN-rail housing. It monitors mains current in the 10–100 A AC range and provides a self-powered, solid-state output with an NPN-PNP open-collector interface for signaling to a PLC or control circuit when an overcurrent condition is detected. The device performs ON/OFF current monitoring with no adjustable time delay, making it suitable for fast protection in single-phase circuits, and it carries a 1/3-phase current category of above 5 A to describe its operating context in larger installations. Mounting is on standard DIN-rail, and the unit is part of the DIA53 family of monitoring relays from Carlo Gavazzi. The E-numbers 4134964 (NO) and 3864556 (SE) appear in documentation for reference. Applications include motor and load protection in industrial panels, where a rapid, single‑phase current threshold signal can drive logic or interlocks in automation systems.