The ISPRO C(R) 40 series of low cost, over voltage surge protective devices has been developed to protect against partial direct and indirect lightning discharges and is intended to provide protection in zones 1 – 2 as per IEC 62305.
It consists of a high performance varistor block with thermal disconnection device. The plug-in module/base design facilitates replacement of a failed module without the need to remove system wiring etc.
