Product Description

Siemens 3SB5400-7DE Legend Plate / Indicating Lamp – SIRIUS ACT Series

Product Overview

The Siemens 3SB5400-7DE is a SIRIUS ACT / 3SB5 series illuminated indicator lamp module used in industrial control panels and operator stations. It is designed to provide clear visual status indication for machine states such as RUN, STOP, FAULT, or READY in automation systems.

Although it is sometimes listed under “legend plate” naming, the 3SB5400-7DE is not a labeling plate. It is an integrated LED indicator lamp holder module used in Siemens 22 mm modular pushbutton systems for reliable visual signaling in industrial environments.

This variant typically operates on 110 V DC and features a green LED indication, commonly used for “RUN”, “ON”, or “healthy system” status in control circuits.

Key Features

• Genuine Siemens SIRIUS ACT / 3SB5 series component
• Part Number: 3SB5400-7DE
• Integrated LED indicator lamp module
• Bright green LED illumination
• Operating voltage: 110 V DC
• Screw terminal connection for secure wiring
• Front panel mounting (22 mm modular system)
• Long service life with low-maintenance LED technology
• High reliability for industrial control applications

• Applications

  The Siemens 3SB5400-7DE is widely used in:

  • Industrial control panels
  • PLC automation systems
  • Machine operator stations
  • Motor control centers (MCC)
  • Electrical distribution boards
  • OEM machinery interfaces
  • Process monitoring systems

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  Benefits

  Clear “RUN / ON” indication

  Green LED provides strong visibility for normal operating or system-ready states.

  Reliable industrial performance

  Designed for continuous operation in demanding electrical environments.

  Energy-efficient LED design

  Low power consumption with long operational life reduces maintenance needs.

  Easy modular integration

  Compatible with Siemens SIRIUS ACT 22 mm systems for fast installation and standardized panel design.