The Siemens 3SU1000-4WS10-0AA0 is a key-operated switch head from the SIRIUS ACT 3SU10 series, designed for a 22 mm panel cut-out. It features four switching positions (O, I, II, III), an operating angle of 3 × 45°, and supports key removal in all switch positions. This variant includes RFID key-coding capability and provides high ingress protection (IP65) for use in industrial panels.
This key-operated switch head is ideal for panel installations where secure multi-position key control is needed — for example in machine control panels, lock-out/tag-out systems, restricted access control, or automation room entry panels. Its RFID key function and IP65 rating make it particularly suitable for industrial environments where moisture, dust or contamination may be present.
| Colour control element | Black |
| Colour front ring | Black |
| Construction type lens | Round |
| Degree of protection (IP), front side | IP65 |
| Height opening | 29.6 mm |
| Hole diameter | 22.3 mm |
| Material front ring | Plastic |
| Number of switch positions | 4 |
| Switching function latching | Yes |
| Width opening | 29.5 mm |
| With front ring | Yes |
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