Siemens A6X30137900 Key-Operated Switch (RONIS, I>O<I)
Catalog comparison — 3SU1 keylock and selector switch bodies
| Parameter | A6X30137900 | A6X30137906 | A6X30137904 | A6X30137902 |
|---|---|---|---|---|
| Actuator Type | Keylock | Keylock | Selector | Selector |
| Series | 3SU1 | 3SU1 | 3SU1 | 3SU1 |
| Compatible Series | Siemens, 22mm | Siemens, 22mm | Siemens, 22mm | Siemens, 22mm |
| Panel Cutout | 22.3mm (Round) | 22.3mm (Round) | 22.3mm (Round) | 22.3mm (Round) |
| Illumination | Non-Illuminated | Non-Illuminated | Non-Illuminated | Non-Illuminated |
| Encapsulation | Box | Box | Box | Box |
| Requires | Contact Block(s) | Contact Block(s) | Contact Block(s) | Contact Block(s) |
| RoHS | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Similarity (0–1) | — | 1.0 | 1.0 | 1.0 |
All four parts target the same 22.3mm round panel cutout and require separate contact block selection.
Why these parts are similar
A6X30137906 shares identical actuator type (Keylock), series (3SU1), and physical envelope. The catalog similarity reflects shared parameter coverage across the 3SU1 switch-body frame.
A6X30137904 differs in actuator type (Selector instead of Keylock); both are non-illuminated, require contact blocks, and use the same 22mm Siemens platform.
A6X30137902 follows the same pattern as A6X30137904 — a selector variant of the same family — with matching panel cutout and encapsulation class.
In-catalog comparison rows require the reader's own qualification before use.
Key specifications — Siemens 3SU1 switch body
| Specification | Value |
|---|---|
| Actuator Type | Keylock |
| Series | 3SU1 |
| Compatible Series | Siemens, 22mm |
| Panel Cutout Dimensions | 22.3mm (Round) |
| Illumination | Non-Illuminated |
| Encapsulation | Box |
| Requires | Contact Block(s) |
| RoHS | ROHS3 Compliant |
| Product Status | Active |
The body ships as a Box unit; contact blocks ordered separately.
Integration notes
The 22.3mm round cutout positions A6X30137900 within the Siemens 22mm industrial operator family. Keylock actuation (RONIS) provides mechanically coded positional switching — common in safety-related selector hierarchies where key removal or retention at specific positions is required.
Actuator type is Keylock versus Selector: the keylock variant offers keyed mechanical retention at defined positions, whereas Selector parts typically allow hand-operated throw without a removable key. Both share the same contact-block interface and panel footprint.
FAQ
What panel cutout does A6X30137900 require? 22.3mm round cutout, matching the Siemens 22mm operator series.
Does A6X30137900 include contact blocks? No — the body requires Contact Block(s) ordered separately.
What is the actuator type of A6X30137900? Keylock (RONIS profile).