This Device built to a very high standard and was
designed to offer a superior level of protection.

Each of the Surge Protection Components ( VDR/MOV)
is duplicated by putting two components in parallel.

We have also included an input EMC filter to combat Radio Frequency
Interference consisting of two X capacitors with a common mode choke
to make this a truly first class piece of equipment.

If the unit suffers a worst case strike then internal thermal fuses will
blow and the green light will go out to warn you that it no longer functions.

A circuit to detect a disconnected earth will show up
as a failure by the Earth Status Indicator not lighting up.