1, 30Amp 300V 2x12 position screw terminal block distribution module. Support for multiple module extension connections. 2, A / B position maximum current 30Amp(each position). A 1~12 total maximum current 30Amp(total positions). B 1~12 total maximum current 30Amp(total positions). A 1~12 / B 1~12 position maximum current 10Amp(each position). Maximum voltage 300V. 3, A / B terminal blocks, Pitch 7.62mm/0.3", Wire range 26AWG ~ 10AWG / 4.0mm square, Rated voltage 300V, rated current 30Amp. Strip length 8mm. Screws - M3,steel, Cr3+ Zn plated. Pin header and Cage - Brass. 4, A 1~12 / B 1~12 terminal blocks, Pitch 5.0mm/0.197", Wire range 26AWG ~ 12AWG / 2.5mm square. Rated voltage 300V, rated current 10Amp. Strip length 7mm. Screws - M3,steel, Cr3+ Zn plated. Pin header and Cage - Brass. 5, ABS plastic enclosure, you can use screw mount to wood board or wall, of course, can also be placed on the desktop.