Safety relays act as vigilant gatekeepers in the world of industrial automation. Unlike standard relays that simply control power flow, safety relays prioritise stopping machinery or processes in critical situations. Imagine a high-tech trip switch for potentially hazardous equipment. These relays monitor safety parameters like pressure, temperature, or even guard door positions. If a sensor reading exceeds a pre-set safety threshold, the safety relay instantly cuts power, bringing the machine to a halt. This decisive action helps prevent equipment damage, protects personnel from injury, and safeguards against malfunctions.