The Siemens SIRIUS ACT mushroom pushbutton (SKU: 3SU1000-1BD20-0AA0) is a round 22 mm mounting diameter operator with a red 40 mm mushroom head and momentary (push-to-make) operation. It is designed for demanding industrial environments with high protection and durability.
Ideal for use in industrial control panels and machinery where a large red mushroom head pushbutton is required for operator interface. The high degree of ingress protection and robust construction make it suitable for harsh environments, such as manufacturing, machinery, utilities, and outdoor enclosures.
| Colour button | Red |
| Colour front ring | Black |
| Construction type lens | Round |
| Degree of protection (IP) | IP67/IP69K |
| Degree of protection (NEMA) | Other |
| Diameter cap | 40 mm |
| Height opening | 27.5 mm |
| Hole diameter | 22.3 mm |
| Material front ring | Plastic |
| Spring-return | Yes |
| Width opening | 40 mm |
| With front ring | Yes |
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