Siemens A6X30138645 Selector Switch (3SU1 Series)
Panel Placement — 3SU1 22mm Platform
The switch body installs in a 22.3mm round panel cutout on the Siemens 3SU1 modular platform. A6X30138645 is the red O<I maintained-contact selector variant; the 3SU1 series offers additional color options in the same A6X30138 prefix family.
Specifications A6X30138645
| Spec | Value |
|---|---|
| Series | 3SU1 |
| Panel Cutout | 22.3mm (Round) |
| Actuator Type | Selector |
| Illumination | Non-Illuminated |
| Encapsulation | Box |
| Compatible Series | Siemens, 22mm |
| Requires | Contact Block(s) |
| RoHS | ROHS3 Compliant |
| Product Status | Active |
| Package | Box |
The selector body requires separate contact blocks to complete the switching function. Panel cutout tolerance and contact block selection fall to the machine builder.
Comparison — 3SU1 Selector Variants
The reader must verify all parameters against current catalog records before committing to an alternate. Similarity values reflect catalog proximity only and do not imply functional interchangeability.
| Spec | A6X30138645 (Red) | A6X30138675 (Yellow) | A6X30138681 (Green) | A6X30138633 (White) |
|---|---|---|---|---|
| Series | 3SU1 | 3SU1 | 3SU1 | 3SU1 |
| Actuator Type | Selector | Selector | Selector | Selector |
| Illumination | Non-Illuminated | Non-Illuminated | Non-Illuminated | Non-Illuminated |
| Panel Cutout | 22.3mm (Round) | 22.3mm (Round) | 22.3mm (Round) | 22.3mm (Round) |
| Requires | Contact Block(s) | Contact Block(s) | Contact Block(s) | Contact Block(s) |
| Similarity | — | 0.928 | 0.916 | 0.916 |
A6X30138675 (Yellow) shares the same tail-ending within the A6X30138 prefix, differing only in color designation and yielding the highest catalog similarity among listed alternates.
A6X30138681 (Green) and A6X30138633 (White) match on all shared spec keys; the color designation is the sole differentiator.
Engineering Verification Checklist
- Confirm panel cutout diameter is 22.3mm (Round) at the point of installation
- Verify contact block compatibility with 3SU1 series before ordering
- Validate maintained-contact throw positions (O<I) against circuit requirements
- Check that color designation (Red) matches the panel labeling specification
- Confirm contact block mounting orientation for the target enclosure layout
- Review package quantity against production volume requirements
- Cross-reference full MPN suffix against Bill of Materials to avoid substitution errors
- Verify ROHS3 compliance applies to the destination market