Features PA66 Material The lock housing and push button are made of PA66, a durable, corrosion-resistant, insulating and high temperature resistant material(-50°C to +177°C). Wide application: this circuit breaker lock has been professionally designed to make the product suitable for a variety of single-stage, multi-stage and any miniature circuit breakers (without modifying the circuit board or circuit breaker itself) to protect employees from electrical accidents during equipment maintenance. VERSATILE This circuit breaker lock is versatile and can be used for locking devices, power separation and as a sign to prevent misuse. Easy to Install This circuit breaker lock is very easy to install, the lock has a push button lock and can be easily installed by manually pressing the button. Compact Size This circuit breaker lock is compact and suitable for circuit breakers with a hole spacing below 12mm and does not take up much space. Specification: Item Type:Miniature Circuit Breaker Lock Material: PA66. Package list: 5 x Miniature Circuit Breaker Lock Package List 5 x Miniature Circuit Breaker Lock