Brickwall - Non-Fail Surge Protectors and Line Filters

Comparing Surge Protector Oscilloscope Traces

For optimum protection from surges and noise, the goal is to keep the surge energy from exceeding the normal power wave region. The following oscillograms clearly show that the Brick Wall filter is far more effective at restricting unwanted surge let-through energy (it is not just the voltage but also the duration that is important- hence our focus is on energy rather than merely voltage).

The Brick Wall filter allows a small amount of energy lasting only 2 microseconds, compared with surge suppressors which let through greater energy lasting over 35 microseconds in the positive direction and over 100 microseconds in the negative direction!

Test results with a 6,000 Volt/3,000 Amp Surge.

Top trace represents the Hot Wire. Bottom trace represents the Ground Wire.