When we buy new device such as APC PML4S-A we often through away most of the documentation but the warranty.
Very often issues with APC PML4S-A begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Surge Protector APC PML4S-A is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Surge Protector on our side using links below.