The Siemens 3SB5400-7CF is a SIRIUS ACT / 3SB5 series illuminated indicating lamp module used in industrial control panels and operator stations. It is designed to provide clear visual status indication for machine states such as ON, OFF, RUN, or FAULT in automation systems.
Although it is sometimes grouped with “legend plate” terminology, the 3SB5400-7CF is actually an integrated LED indicator lamp holder, not a labeling plate. It belongs to Siemens’ modular 22 mm SIRIUS ACT system, widely used in industrial automation and panel building.
This variant typically operates on 24 V AC/DC and comes with a blue LED indication, offering reliable, long-life visual signaling in control circuits.
The Siemens 3SB5400-7CF is widely used in:
Blue LED provides strong visibility for system status, diagnostics, or special machine states.
Designed for continuous operation in harsh electrical environments with minimal failure risk.
Low power consumption with long operational life reduces maintenance requirements.
Compatible with Siemens SIRIUS ACT 22 mm modular systems for fast installation and standardized panel design.
Despite being searched as a “legend plate,” the 3SB5400-7CF is not a labeling accessory. It is an illuminated LED indicator lamp module used for signaling in industrial control systems.
| Specification | Details |
|---|---|
| Manufacturer | Siemens |
| Series | SIRIUS ACT / 3SB5 |
| Part Number | 3SB5400-7CF |
| Product Type | LED Indicator Lamp / Lamp Holder |
| Light Source | LED |
| Rated Voltage | 24 V AC/DC |
| Color | Blue |
| Mounting Type | Front plate mounting |
| Terminal Type | Screw terminal |
| Application | Control panels, automation systems, machine signaling |
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