Four wire 240V AC-surge suppressor for the main service entrance of homes shops or barns. Rated for indoor or outdoor installation, carries a lifetime product warranty and a connected equipment warranty (secondary to homeowners insurance). It is manufactured and backed by one of the largest electrical equipment manufacturers in the US. This device can be connected to any manufacturers loadcenter (circuit breaker box). It has a rated capacity of 2500 joules and a maximum rated surge current of 125,000 amps. This device is rated at a let through of 400 volts under UL 1449 second edition. Indicator lights provide visual confirmation of surge protection. Requires installation by a qualified electrician |