AC Power Protection

Choosing the right device

AC service is where most damaging surges enter a building, and the right device depends on what you're protecting and where it installs. Parallel suppressors like the EMC series clamp transients at a distribution panel or ahead of a 120 V power supply, while series protectors like the HSP121 line add noise filtering and power-line tracking for sensitive electronics downstream.

When comparing models, start with operating voltage (120 vs. 120/240 VAC), connection type (wire leads vs. terminal block), and surge current rating for your exposure level. Every product page lists full specifications and installation guides — and if you're not sure which unit fits your panel or instrument, call 941-355-8822 and a licensed electrician will walk you through it before you order.