The Siemens 3SB5400-7DC 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 ON, OFF, RUN, or FAULT in automation systems.
Although it is sometimes listed under “legend plate” naming, the 3SB5400-7DC is not a labeling plate. It is an integrated LED lamp holder module used in Siemens 22 mm modular pushbutton systems for reliable visual signaling.
This variant typically operates on 110 V DC and features a red LED indication, commonly used for fault, stop, or emergency status signaling in industrial environments.
The Siemens 3SB5400-7DC is widely used in:
Red LED provides strong visibility for fault, stop, or emergency conditions, improving operator response time.
Designed for continuous operation in harsh electrical environments.
Low power consumption with long operational life reduces maintenance needs.
Compatible with Siemens SIRIUS ACT 22 mm systems for fast installation and standardized panel design.
Even though it is sometimes referred to as a “legend plate,” the 3SB5400-7DC is not a labeling accessory. It is an illuminated LED indicator module used for signaling in industrial control systems.
| Specification | Details |
|---|---|
| Manufacturer | Siemens |
| Series | SIRIUS ACT / 3SB5 |
| Part Number | 3SB5400-7DC |
| Product Type | LED Indicator Lamp / Lamp Holder |
| Light Source | LED |
| Rated Voltage | 110 V DC |
| Color | Red |
| Mounting Type | Front panel mounting |
| Terminal Type | Screw terminal |
| Application | Control panels, automation systems, machine signaling |
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