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The SIEMENS 3SB3902-1EP is an inscription label accessory designed for use with 3SB series pushbutton and selector switch assemblies. These labels slide into or mount onto compatible operator heads to provide clear, legible identification of control functions at the panel. Correct labeling is a basic requirement on industrial control panels and machine operator interfaces where operators must quickly identify button functions. The 3SB3902-1EP is a low-cost, precision-fit accessory intended for use by electricians and control panel builders working with Siemens 3SB modular control components.
This inscription label is used in industrial and commercial control panel applications where pushbutton identification is required. Typical installations include machine control stations, motor control centers, and operator interface panels. The accessory is intended for environments where clear function labeling is required to meet control panel documentation and safety standards. Electricians and panel builders incorporate these labels during new panel builds and retrofit projects alike.
Designed as an OEM-style inscription label accessory for Siemens 3SB series modular pushbutton and selector switch operator assemblies.
Installation is typically performed by licensed electricians or qualified control panel builders. De-energize the control panel and follow applicable lockout/tagout procedures before servicing any operator devices. Labels are inserted into the designated window of the compatible operator head without special tools. Verify fitment and legibility before returning the panel to service.
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