Siemens A6X30138142 Selector Switch (3SU1 Series)
The A6X30138142 is a non-illuminated selector switch body from Siemens' 3SU1 22mm modular pushbutton family. It ships in a box as a bare actuator requiring separate contact block(s) for function.
A6X30138142 — Panel Integration and Compatibility
This component mounts in a 22.3mm round panel cutout and is designed exclusively for use with Siemens 3SU1 contact blocks (purchased separately). The selector type actuator provides a three-position I>O-II mechanical arrangement. The body ships as an open package, with no integral contacts or lighting.
3SU1 Selector Body — Key Specifications
| Spec | Value |
|---|---|
| Actuator Type | Selector |
| Positions | I > O > II (3-position) |
| Illumination | Non-Illuminated |
| Panel Cutout | 22.3mm Round |
| Series | 3SU1 |
| Compatible Series | Siemens, 22mm |
| Encapsulation | Box |
| Requires | Contact Block(s) |
| RoHS | ROHS3 Compliant |
| Status | Active |
A6X30138142 — Family Differentiation
The Siemens 3SU1 selector switch line uses color as the primary differentiator within identical mechanical specifications. The red variant (A6X30138142) shares all electrical and dimensional ratings with the yellow (A6X30138162), blue (A6X30138195), and green (A6X30138174) options. The O-I two-position variants (e.g., A6X30138262 in white) differ in position count only; all require the same 22.3mm cutout and contact block interface.