What are trapped key interlocks?

Switchgear Control Using Trapped Key Interlocking | Castell

Trapped Key Interlock mGard — Ashdale Engineering Limited

A Texas man named Sky Decker jumped into the water to rescue a woman trapped in the wreckage of a Mexican Navy plane that crashed into Galveston Bay. The incident resulted in several fatalities, including a 2-year-old child, according to officials. https://cnn.it/4pRKTZ6 | CNN International

Harrowing footage captured the moment a man bravely rescued a fox trapped under a frozen lake. Using only a chisel, he furiously chipped through thick ice to reach the struggling animal, pulling it to safety in a dramatic scene of compassion. #animalrescue #wildlife #bravery | Paul Vu

Video shows an elderly woman trapped in floodwaters in the Moroccan city of Safi, calling for help as floods swept through the area. She was later rescued. | Al Jazeera English

Mechanical Trapped Key Interlocks

Trapped Key Interlock – the Key to Industrial Safety - Kempston News | Specialist electrical and electronic components news