Siemens A6X30137641 Pushbutton — 3SU1 Series, 22mm Yellow Round
Selection trade-offs for the 3SU1 pushbutton family
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Color vs. function — The seed part (A6X30137641) is yellow; the 3SU1 series offers black, red, green, blue, and gray alternatives. Color is primarily operator-interface signaling (emergency stop, start, stop, reset, etc.). A6X30137648 is an illuminated twin pushbutton with an oval actuator form factor, which changes the mechanical integration profile compared to the round, non-illuminated body.
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Illumination requirement — A6X30137641 is non-illuminated and requires only contact block(s). A6X30137648 is illuminated and additionally requires an illumination source, which adds wiring and driver considerations.
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Actuator form factor — All non-illuminated peers share the round pushbutton profile. The oval (dual) actuator of A6X30137648 may affect the operator feel, travel, and panel cutout layout even though the stated cutout diameter is identical (22.3mm round).
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Contact block assembly — Every listed body requires contact block(s) as a separate line item. The number and type of contact blocks (NO, NC, late-break, etc.) must be specified independently and coordinated with the control circuit before ordering.
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Series and compatibility consistency — All listed parts belong to the Siemens 3SU1 series, compatible with the 22mm form factor. Cross-color or cross-function mixing within the same series is mechanically compatible, but the reader's own qualification must confirm that the chosen color assignment aligns with the machine safety and ergonomics requirements.
Catalog identity and specification
The A6X30137641 is a Siemens 3SU1 series 22mm round pushbutton actuator body supplied in a box package. It is a non-illuminated, non-latching operator head intended for panel mounting in a 22.3mm round cutout. The body is ROHS3 compliant and currently has an Active product status.
| Parameter | Value |
|---|---|
| Manufacturer | Siemens |
| Series | 3SU1 |
| Actuator Type | Pushbutton, Round |
| Illumination | Non-Illuminated |
| Panel Cutout | 22.3mm (Round) |
| Encapsulation / Package | Box |
| Requires | Contact Block(s) |
| RoHS | ROHS3 Compliant |
| Product Status | Active |
In-catalog comparison — A6X30137641 and 3SU1 peers
| MPN | Color / Title | Actuator Type | Illumination | Requires |
|---|---|---|---|---|
| A6X30137641 | Yellow — PUSHBUTTON | Pushbutton, Round | Non-Illuminated | Contact Block(s) |
| A6X30137646 | Green — PUSHBUTTON | Pushbutton, Round | Non-Illuminated | Contact Block(s) |
| A6X30137643 | Green — PUSHBUTTON | Pushbutton, Round | Non-Illuminated | Contact Block(s) |
| A6X30137651 | Blue — PUSHBUTTON | Pushbutton, Round | Non-Illuminated | Contact Block(s) |
| A6X30137661 | Gray — PUSHBUTTON | Pushbutton, Round | Non-Illuminated | Contact Block(s) |
| A6X30137631 | Black — PUSHBUTTON | Pushbutton, Round | Non-Illuminated | Contact Block(s) |
| A6X30137611 | Green — PUSHBUTTON | Pushbutton, Round | Non-Illuminated | Contact Block(s) |
| A6X30137601 | Red — PUSHBUTTON | Pushbutton, Round | Non-Illuminated | Contact Block(s) |
| A6X30137648 | White — ILLUMINATED TWIN PUSHBUTTON | Pushbutton, Oval (Dual) | Illuminated | Contact Block(s), Illumination Source |
Why these parts are similar
A6X30137641 and A6X30137646/37643/37651/37661/37631/37611/37601 share the same Siemens 3SU1 series, identical 22mm panel cutout dimension, round actuator form factor, non-illuminated type, and the same requirement for contact block(s) only. The listed similarity score reflects these shared parameters. The remaining peer (A6X30137648) is differentiated by illuminated function and oval (dual) actuator geometry.
All eight non-illuminated peers are mechanically equivalent in terms of mounting footprint and contact block interface. A6X30137648 requires an illumination source in addition to contact blocks, introducing an additional selection variable not present in the seed part.
Ordering context
The A6X30137641 is identified by the suffix 37641 within the Siemens 3SU1 series catalog. Color-coded variants share the same mechanical base and differ only in the operator cap material. When specifying the full pushbutton assembly, the body (this part) must be ordered alongside the appropriate contact block(s) to form a functional switch element.