Trapped Key Interlocks
Trapped Key Interlocking uses a proven mechanical method to control the safe sequence of operations for machinery and equipment, ensuring dangerous areas remain inaccessible until it’s safe to enter. A Trapped Key System works through the controlled release and transfer of coded keys, which become trapped or released in a specific order. This enforces strict safety procedures without the need for electrical wiring, offering a highly reliable solution where electronic systems may fall short.
IDEM’s Skorpion-Range Trapped Key Interlocks are robust, durable, and designed for quick
installation with minimal maintenance. Available in rugged die-cast metal or 316 stainless
steel, they perform reliably in all environments, including outdoor and washdown applications.
Stainless steel internal components ensure rust-free operation over time.
Trapped Key Interlocks offer a simple yet effective way to protect personnel and equipment by
physically enforcing isolation and reducing the risk of human error. Standard coded keys offer
100+ combinations, while uniquely coded options provide over 16,000 combinations with in-house
tracking to prevent duplication and enhance security.
A Trapped Key System delivers high safety integrity, eliminates complex wiring and offers
dependable mechanical control—ideal for high-risk industrial settings.
