Siemens 3SB3902-1EW Inscription Plate Push Button Label

Product Description

The SIEMENS 3SB3902-1EW is an inscription plate designed for use with 22mm and 30mm push button operator assemblies in industrial control panels and enclosures. This small-format label plate provides a dedicated surface for identifying push button or selector switch functions, helping technicians and operators quickly distinguish control station functions. It fits into the legend holder or legend window of compatible SIEMENS 3SB-series operator heads. Electricians and panel builders typically install these during initial panel assembly or when relabeling existing controls. The part measures 1.07 inches long by 0.52 inches wide by 0.08 inches thick and weighs 0.44 pounds per pack.

Inscription plates like the 3SB3902-1EW are used in industrial control panels, machine tool enclosures, motor control centers, and process control stations. They are installed at the push button or selector switch face to communicate function labels such as Start, Stop, or custom text. These plates are a standard component in any panel build or retrofit where operator interface identification is required. The 12.5mm designation refers to the plate format size for the applicable operator series.

Key Features

• Small-format inscription plate sized for 12.5mm legend window applications
• Fits SIEMENS 3SB-series push button and selector switch operator assemblies
• Dimensions: 1.07 inches long x 0.52 inches wide x 0.08 inches thick
• Lightweight at 0.44 pounds, suitable for high-density panel layouts
• Used to label control station functions for operator identification

Compatibility

Designed as an OEM-style inscription plate for SIEMENS 3SB-series push button operator assemblies that accept a 12.5mm legend plate format.

Installation Notes

Installation is performed by qualified electricians or panel builders during control panel assembly or maintenance. De-energize the control panel and follow applicable NFPA 70E lockout/tagout procedures before accessing operator components. The inscription plate slides or snaps into the legend holder on the operator head and does not require tools for installation. Verify the plate format matches the operator head legend window before installation.

Technical Specifications

• Length: 1.07 inches
• Width: 0.52 inches
• Height/Thickness: 0.08 inches
• Weight: 0.44 pounds
• UPC: 75455462204

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 3SB3902-1EW