Terminal Blocks- With Independent Feed Rating: 20A, 300V, UL & CSA; Center Spacing: 7/16inch; Wiring: Terminals will accept maximum wire size of AWG No.12; Terminal Screw Size: No.6-32 philslot combination; Distance Between Barriers: 0.353"; Mounting: No.6 Screws; Temp. Rating: ¦F(¦C); 302 (150) max. -40(-40)min. Current Rating: 20 DC Amp. Voltage Rating: 300 VDC. Dimensions: L 2.51 x W 1.37 x H 0.75 Inch. Mounting Hole Centers: 2.18 Inch. No. Gangs: 4.