Bernstein AG SKU1ZM Safety Interlock Switch

Bernstein AG SKU1ZM Safety Interlock Switch is an SK-series interlock identified with the SK-U1Z M designation and cataloged as 601.6119.016. It is a safety device designed to monitor the closed state of an access point on industrial equipment and to feed a stop or interlock signal to the machine’s safety control system when the point is opened. The SKU1ZM variant uses a separate actuator (U1Z M), a configuration that allows the switch body and actuator to be mounted in different locations for flexible installation around complex guard geometries. The actuator is not included in the scope of delivery and must be ordered separately, per Bernstein’s documentation for safety switches with separate actuators. Typical applications include safeguarding movable guards on machinery such as presses, conveyors, and packaging lines, where maintaining a closed guard during operation is essential for worker safety. This model is commonly referenced by distributors under the SKU1ZM label and maps to Bernstein’s 601.6119.016 catalog entry, reflecting its role within the Bernstein SK interlock family as a dedicated, modular interlock solution for machine guarding. For wiring specifics, pin assignments, and installation notes, refer to Bernstein’s official SK interlock documentation and the actuator-specific datasheets associated with SK-U1Z M.