surge suppression images

Shunt Mode and Series Mode

This American Power surge protector is a hybrid. The capacitors absorb low-energy surges, while the MOVs divert the high energy. (Image courtesy of American Power Conversion Corporation.)

All Series Mode

This diagram shows how Zero Surge protectors (www.zerosurge.com) operate. The current is not diverted to ground. The Zero Surge units use coils and capacitors to block and absorb the energy and release only acceptable levels to the equipment. There are no parts that degrade with each surge encountered.

Keep Running Smoothly

An excellent safeguard is to power a computer from an uninterruptible power supply (bottom) that plugs into a series mode suppressor (top), which plugs into the wall. The high energy of a surge is brought down to low levels before it reaches the UPS. The Zero Surge suppressor and American Power UPS are high quality units.

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