- Circuit Breaker Locking Device – Universal type for Single & Multipole MCB’s & MCCB’s upto 200A with cover and 2 way padlocking slots. NO-TOOL. Color: Red. ● Material: Nylon & Glass Fiber. ● No. of Padlock hole: 1. ● Thumb turn dial screw for easy installation – NO TOOL required. ● Can be mounted side-by side on adjacent miniature circuit breaker. Weight: 0.020 Kg. (20 gms)