This automatic transfer switch is for a Briggs & Stratton 12/15 Kw Home Standby Generator. It is a NEMA 3, indoor or outdoor, 200 amp, 2 pole with a Service Disconnect Switch. It's weight is 64 lbs and dimensions (LxWxH) are 16"x 7"x 30". The AC Power Control Module is also included and will maximize your 12/15 Kw Briggs EmPower's performance. This provides critical AC overload protection. You can go to the Briggs & Stratton web site and look at P/N 71011 for complete specs.