- Circuit Breaker Locking Device locks outs 600A MCCB’s with Oversized toggles. (Break Blocker Components) 480v~600v. Set consists of 2 self adhesive bases, 1 Red & 1 Green blocking bars and 1 self adhesive bar holder. ● Made from engineering plastic alloy. ● Circuit Breaker Lockout Mounting rails for use with Red or Green blocker bar. Color: Yellow. ● Lock large or unique shape switch, the length of the rod is 190mm (Red & Green Blocker Bar). ● The Green colour bar can be used to indicate “locked on”. ● The Red colour bar can be used to indicate “locked off” . ● 5 Pcs. per set. Weight: 0.085 Kg. (85 gms)