What is zener barier?

A Zener barrier, also known as an intrinsically safe barrier, is an electronic device used to ensure safe operation of electrical equipment in hazardous areas. It is designed to limit the amount of electrical energy that is transferred from a safe area to a hazardous area, thereby preventing any potential ignition or explosion. A Zener barrier is typically inserted into a circuit between the hazardous area and the electrical equipment, and it works by regulating the voltage and current levels transmitted across the barrier. This ensures that the electrical energy reaching the hazardous area is within safe limits, even in the event of an equipment failure or fault condition. Zener barriers are commonly used in industries such as oil and gas, chemicals, and mining, where the presence of flammable gases or vapors creates a potentially explosive atmosphere.