Brand: Edison Item: Terminal block Mounting: Panel Number of Poles: 1 Amperage Rating: 310A Terminal Block Type: Open UL Rating: UL 1059 recognized SCCR Rating: 200kA SCCR Line Side Openings: 1 opening accepts 350 MCM to 4 AWG Load Side Openings: 12 openings accept 4AWG to 12 AWG Edison open terminal block, 310A, 1-pole, line side: 1 opening accepts 350 MCM to 4 AWG, load side: 12 openings accept 4AWG to 12 AWG, panel mount, UL 1059 recognized.