Trapped Key Interlocks
Castell Safety International has been at the forefront of trapped key interlocking since 1922. Today Castell, from its five global locations, designs and manufactures the world’s widest range of industrial safety interlocking systems ensuring that industry can operate safely around the world. Our interlocking systems are designed to be robust, durable and are proven in all types of operating environments that meet the demands of the harsh locations our customers operate in. Above all, they are designed to protect personnel and assets where the risk of injury and damage are high. Trapped key interlocking ensures that a process is followed and cannot be circumvented or short cut. The transfer of a key ensures that wherever personnel find themselves, in either starting or shutting down operations, they can be assured that they are safe.