The 3003923 is a 2-position 1-level green-yellow Ground Modular Terminal Block with a polyamide insulator, the M4 screw connection and the NS 35/7,5,?NS 35/15, NS 32 mounting. This USLKG 10 N terminal block has easy operation and use and can be snapped onto the DIN rail. It accepts 20 to 6AWG wire range.