Rated for 120/240 split phase panels up to 400A^^Surge Current Capacities: | 60,000 A^^3 Stage Commercial Grade Notification^^Ground Reference Monitoring (GRM) | Audible Alarm: Beeps | Green LED(s): Remains Lit | Red Service Light: Flashes^^Installs onto any brand load center^^Type 4 rated outdoor enclosure^^UL 1449 Listed, Type 2, Surge Protective Device (SPD)^^10 year product and connected equipment warranty