What is a modular surge protector?
A modular surge protector performs the same as one that is not modular. The only difference is that a modular protector contains modules that are field replaceable, thus making maintenance easy and minimizing time with reduced protection, or no protection at all in some cases. The modules usually contain the metal oxide varistors and fuses (although sometimes the fuses are external to the modules). They are the heart of the surge protector. If one should fail, the entire unit does not have to be sent back to the manufacturer for service just replace the module(s) and youll be up and running again. The manufacturer sends replacement modules and fuses only. Replacement usually takes anywhere from 5 to 30 minutes. A modular protector also allows for decreased labor and cost required for servicing the protector.
