BACKUP POWER TRANSFER SWITCH OPTIONS

After we zapped this unit with 5,000 volts, it blocked all but 402.8 of these. Although that’s about two times as quite a few volts as our favourite surge protectors let by way of, it’s nevertheless greater surge safety than we observed from any UPS we’ve examined (apart from the Tripp Lite AVR750U, which performed concerning the same).Consid