Allen-Bradley 440T Prosafe Trapped Key Interlock Exchange Unit Switch

The Allen-Bradley 440T Exchange Units for Trapped Key Interlock Switches are used in an interlocking sequence to link together devices in the Prosafe® range. Ideal for complex operating sequences with off-the-shelf units and customisable options. All switches are built with weatherproof stainless steel dust cap with primary keys in release secondary keys simultaneously on units up to six ways.