Explosion proof fire safety barrier does not affect the normal operation of electrical equipment under normal circumstances, when the system fails, it can limit energy (electric power) that turn into dangerous place to a safe value. This product can be used with a variety of fire detectors, buttons and other electronic products. This product uses an advanced resistive, transistor dual electronic switching circuit, fast starting speed, extremely small output resistance, automatic recovery when the current or voltage input exceeds a predetermined value, the barrier start working, so that the output voltage is approximately zero, the current is reduced to a safe value.Explosion proof fire safety barrier is a kind of non-coding Explosion proof barrier , which performance is in line with GB3836-2000 series of standards, inspected by the state designated inspection units, and acquired explosion-proof certificate. Barrier is available in 1 and 2 Zone hazardous locations which include Class Ⅱ A, B, C class T1 ~ T6 temperature group explosive gas environment.