| EMERGENCY STOP mushroom pushbutton, 22 mm, round, plastic, red, 40 mm, positive latching, acc. to EN ISO 13850, pull-to-unlatch mechanism, with yellow backing plate, inscription: EMERGENCY STOP, with holder, 1 NO+1 NC, screw terminal |
| Product brand name | SIRIUS ACT |
| Product designation | EMERGENCY STOP mushroom pushbuttons |
| Design of the product | Complete unit |
| Product type designation | 3SU1 |
| Manufacturer's article number | |
| 1 of supplied contact module | |
| of the supplied holder | |
| of the supplied actuator | |
| of supplied accessory | |
| Enclosure |
| Number of command points | 1 |
| Actuator |
| Design of the operating mechanism | positive latching |
| Manner of function of the actuating element | Latching |
| Product extension optional Light source | No |
| Color | |
| of the actuating element | Red |
| Material of the actuating element | plastic |
| Shape of the actuating element | round |
| Outer diameter of the actuating element | 40 mm |
| Number of contact modules | 1 |
| Type of unlocking device | pull-to-unlatch mechanism |
| Front ring |
| Product component front ring | No |
| Holder |
| Material of the holder | Plastic |
| Display |
| Number of LED modules | 0 |
| General technical data |
| Product function | |
| positive opening | Yes |
| EMERGENCY OFF function | Yes |
| EMERGENCY STOP function | Yes |
| Product component | |
| Light source | No |
| Insulation voltage | |
| rated value | 500 V |
| Degree of pollution | 3 |
| Type of voltage | |
| of the operating voltage | AC/DC |
| Surge voltage resistance rated value | 6 kV |
| Protection class IP | IP66, IP67, IP69(IP69K) |
| of the terminal | IP20 |
| 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 | 600 1/h |
| Mechanical service life (switching cycles) | |
| typical | 300 000 |
| Electrical endurance (switching cycles) | |
| typical | 300 000 |
| Thermal current | 10 A |
| Reference code acc. to DIN EN 81346-2 | S |
| Reference code acc. to DIN EN 61346-2 | S |
| Continuous current of the C characteristic MCB | 10 A; for a short-circuit current smaller than 400 A |
| Continuous current of the quick DIAZED fuse link | 10 A |
| Continuous current of the DIAZED fuse link gG | 10 A |
| Operating voltage | |
| at AC | |
| — at 50 Hz rated value | 5 ... 500 V |
| — at 60 Hz rated value | 5 ... 500 V |
| at DC | |
| — rated value | 5 ... 500 V |
| Power Electronics |
| Contact reliability | One maloperation per 100 million (17 V, 5 mA), one maloperation per 10 million (5 V, 1 mA) |
| Auxiliary circuit |
| Design of the contact of auxiliary contacts | Silver alloy |
| Number of NC contacts for auxiliary contacts | 1 |
| Number of NO contacts for auxiliary contacts | 1 |
| Number of CO contacts | |
| for auxiliary contacts | 0 |
| Connections/Terminals |
| Type of electrical connection | |
| of modules and accessories | Screw-type terminal |
| Type of connectable conductor cross-sections | |
| solid with core end processing | 2x (0.5 ... 0.75 mm²) |
| solid without core end processing | 2x (1.0 ... 1.5 mm²) |
| finely stranded with core end processing | 2x (0.5 ... 1.5 mm²) |
| finely stranded without core end processing | 2x (1,0 ... 1,5 mm²) |
| at AWG conductors | 2x (18 ... 14) |
| Tightening torque of the screws in the bracket | 1 ... 1.2 N·m |
| Tightening torque | |
| for auxiliary contacts with screw-type terminals | 0.8 ... 0.9 N·m |
| Safety related data |
| B10 value | |
| with high demand rate acc. to SN 31920 | 100 000 |
| Proportion of dangerous failures | |
| with low demand rate acc. to SN 31920 | 20 % |
| with high demand rate acc. to SN 31920 | 20 % |
| Failure rate [FIT] | |
| with low demand rate acc. to SN 31920 | 100 FIT |
| T1 value for proof test interval or service life acc. to IEC 61508 | 20 y |
| 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 %, no condensation in operation permitted for all devices behind front panel) |
| Installation/ mounting/ dimensions |
| Mounting type | front mounting |
| of modules and accessories | Front plate mounting |
| Height | 40 mm |
| Width | 30 mm |
| Shape of the installation opening | round |
| Mounting diameter | 22.3 mm |
| Positive tolerance of installation diameter | 0.4 mm |
| Mounting height | 46.4 mm |
| Installation width | 75 mm |
| Installation depth | 70.6 mm |
| Accessories |
| Number of backing plates | 1 |
| Marking of backing plate | EMERGENCY-STOP |
| Color of backing plate | Yellow |
