WFCO T30WM 30 Amp Transfer Switch Input 	: 	105-130 VAC, 60 Hz, 30-amp service Warranty Period 	: 	FCC Class B Two Year Limited Product Warranty Attaches to back of WFCO 8900 Series Power Centers or like the T-57 can be mounted on any flat surface. (T-30-WM) AC Rating: 120 volts/30 amps Dimensions: 5" W; 5-5/8" H; 5" D