STFV Series Active Tracking Filter With Surge Protection, CSA Certified, CSA C22.2 No.8, UL Recognized Component, UL1283, Amps 30.0, Min Wire Size AWG 10, Screw Size #8, Fuse/Circuit Breaker Ampacity: Suggested 30A, Max. 37.5A, Single Phase, (120Vac)