Siemens
Siemens 3SU1051-1BA20-0AA0 Illuminated Mushroom Pushbutton - Red, 40mm
Siemens 3SU1051-1BA20-0AA0 illuminated mushroom pushbutton, latching, red.
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12-month warranty
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Same-day dispatch
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Worldwide delivery
US, EU, Asia, Middle East
Veteran-owned
CAGE: 9NK75
Large 40mm mushroom head
Red illuminated actuator
Latching mechanism
Pull-to-unlatch reset
Shiny metal front ring
22mm standard mounting
Product description
The Siemens 3SU1051-1BA20-0AA0 is a 40mm illuminated mushroom pushbutton with a shiny metal front ring. It features a red, round actuator, a latching mechanism, and a pull-to-unlatch reset type, designed for 22mm mounting cutouts.
This pushbutton is crucial for emergency stops or maintained functions in industrial machinery, control panels, and safety systems where a large, easily identifiable, and latched button is required. The red color signals a critical state.
Stanlo Automation, a veteran-owned supplier, offers the Siemens 3SU1051-1BA20-0AA0. Trust us for reliable industrial automation components backed by expert service.
Technical specifications
| Actuator Type | Mushroom head |
| Actuator Diameter | 40 mm |
| Operating Mode | Latching |
| Reset Type | Pull-to-unlatch |
| Illumination Color | Red |
| Mounting Diameter | 22 mm |
| Front Ring Material | Metal, shiny |
| IP Rating | IP66, IP67, IP69K |
| Operating Temperature | -25 to +70 °C |
Common applications
Emergency stop buttons
Machine safety controls
Industrial control panels
Automation systems
Safety interlocks
Compatible systems
SIRIUS ACT mounting holders
SIRIUS ACT contact blocks
SIRIUS ACT LED modules
Also known as
3SU10511BA200AA0
Siemens red mushroom button
SIRIUS ACT red emergency stop
Replaces / compatible with
Compatible with Siemens SIRIUS ACT contact blocks and illumination modules. Replaces older mushroom pushbuttons requiring 22mm mounting.
Technical note
Expert tip
Requires a separate contact block (e.g., 3SU1550-0AA10-0AA0) and an LED module (e.g., 3SU1401-1BH20-1AA0) for full functionality.What happens next?
1
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2
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Confirms your part's spec and condition
3
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Frequently asked questions
How is the Siemens 3SU1051-1BA20-0AA0 mushroom pushbutton reset?
The Siemens 3SU1051-1BA20-0AA0 mushroom pushbutton features a 'pull-to-unlatch' mechanism. To reset the button after it has been actuated and latched, you simply pull the mushroom head outwards.