Trapped key systems use a series of mechanical locks and keys to control the access of gates or doors to running equipment or machines, ensuring safe access. Standard gate sets, available with one to five gate switch modules, allow a purely mechanical interlock system in series or parallel arrangements.
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Would you buy this item again? Yes
I have used several of this key interlocks for operator access applications. It is simple and keeps the electrical installation to a minimum. Operators love them because of how robust they are. In our facility the environment is quite harsh, however, every component has withstand remarkably. Not a single failure. I highly recommend it.