Breaker locking device: reinforced PA nylon material for wear resistance, low deformation, toughness, and durable longterm performance in secure breaker locking. Breaker device: safety buckle design provides secure engagement on breaker locking devices, supporting reliable locking during maintenance. Electrical clamp: specially designed for breaker locking and marking, delivering a robust locking option for circuit breakers. Circuit breaker device: enables maintenance work to be completed safely and quickly with a manual locking device. Use scenarios Electrical panel maintenance: lock out the relevant circuit breakers to prevent accidental energization during routine servicing or inspection. Machinery service in a manufacturing environment: isolate power by locking breakers to ensure safe or adjustment of equipment. Switchgear testing and commissioning: apply the locking device to secure breakers during configuration, testing, or startup procedures to maintain a controlled, safe environment.