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. Keys are trapped and released in a sequential order. Sets are available with a main station and from one to five gate switch modules, with optional solenoid locking models for maximum protection.
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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.