| Twin pushbutton, 22 mm, round, plastic with metal front ring, green, red, pushbuttons, flat |
| Product brand name | SIRIUS ACT |
| Product designation | Twin pushbuttons |
| Design of the product | Actuating/signaling element |
| Product type designation | 3SU1 |
| Enclosure |
| Number of command points | 1 |
| Actuator |
| Design of the operating mechanism | Flat buttons |
| Manner of function of the actuating element | Momentary contact type |
| Product extension optional Light source | No |
| Color | |
| of the actuating element | Green / red |
| Material of the actuating element | plastic |
| Shape of the actuating element | oval |
| Front ring |
| Product component front ring | Yes |
| Design of the front ring | Standard |
| Material of the front ring | Metal, matt |
| Color of the front ring | sand gray |
| General technical data |
| Protection class IP | IP66, IP67, IP69(IP69K) |
| Degree of protection NEMA rating | NEMA 1, 2, 3, 3R, 4, 4X, 12, 13 |
| Shock resistance | |
| acc. to IEC 60068-2-27 | Sinusoidal half-wave 50 g / 11 ms |
| for railway applications acc. to DIN EN 61373 | Category 1, Class B |
| Operating frequency maximum | 3 600 1/h |
| Mechanical service life (switching cycles) | |
| typical | 2 000 000 |
| Reference code acc. to DIN EN 81346-2 | S |
| Reference code acc. to DIN EN 61346-2 | S |
| Ambient conditions |
| Ambient temperature | |
| during operation | -25 ... +70 °C |
| during storage | -40 ... +80 °C |
| Environmental category during operation acc. to IEC 60721 | 3M6, 3S2, 3B2, 3C3, 3K6 (with relative air humidity of 10 ... 95 %) |
| Installation/ mounting/ dimensions |
| Height | 57.9 mm |
| Width | 29.9 mm |
| Shape of the installation opening | round |
| Mounting diameter | 22.3 mm |
| Positive tolerance of installation diameter | 0.4 mm |
| Mounting height | 14.4 mm |
| Installation width | 29.9 mm |
| Installation depth | 25.7 mm |
