LIGHTNING ARRESTER Lightning Arrester:Function【Surge Protection Devices】 Surge Protection Devices:Accessories【2】

This is an outdoor housing box to accommodate security devices equipped with functions to protect the human body, communication equipment, and communication lines from abnormal voltages and currents applied to communication lines, or products used for connecting, separating, and switching communication lines.

Powers the LED for diagnostics of MLP type surge protection devices for communication lines and power supply.