By connecting the Tytewadd Power Filter across the main breaker of an electrical panel, all circuits in that panel can be protected from damaging moderate surges (those exceeding 130 volts), and also, from very destructive lightning surges that produce amperages ranging into the thousands.
Normally, two different types of arresters are used to achieve this dual level protection, however, the Tytewadd is a multi-purpose unit especially designed to handle both.
Where refrigeration and/or critical equipment is present, it is recommended that the Tytewadd Power Filter be installed on a two-pole breaker in a single phase panel and a three-pole breaker in a three phase panel. Each incoming line must be connected to the surge arrester for full protection.
Tytewadd Power Filters are U.L. Listed and CSA Certified. Tested under ANSI/IEEE C62.1 Standards for Secondary Surge Arresters, they exceed test requirements and are in compliance with CSA Standard C22.2 No. 0-M1982