Precise and reliable – SIRIUS 3SE5, 3SF1 safety switches
Following detection the safety switches relay the signals to evaluation units, e.g. the SIRIUS 3SK safety relay or the SIRIUS 3RK3 modular safety system, compatible with the SIMATIC PLC.
While 3SE5 position switches with positive opening (indicated with (→)) make safety category SIL 1 / PL c possible, safety category SIL 2 / PL d can be achieved with just one safety switch. Depending on the application requirements, different switches can furthermore be combined in order to achieve the higher safety category SIL 3 / PL e.
Safety switches with separate actuator without tumbler protect doors and covers by shutting off the machine upon opening. The safety switches with separate actuator with tumbler offer additional safety as they prevent accidental or intentional opening of protective doors, protective grilles or other covers as long as a dangerous situation is present (such as follow-on motion during shutdown).
Safety switches with separate actuator provide increased manipulation protection through 3D-coded actuators. Actuators are available in a range of forms and materials and must be ordered separately. The actuator heads, which can be rotated through 4×90°, can be approached from four sides and above with an actuator.
Hinge switches for mounting on hinge axes are used in those areas where the position of swiveling protective devices such as doors or flaps is monitored.
With the 3SF1 safety switches for AS-i the ASIsafe electronics are integrated in the switch enclosure, meaning the safety functions no longer need to be conventionally wired.
SIRIUS 3SE5 without tumbler
SIRIUS 3SE5 hinge switches
SIRIUS 3SF1 for AS-Interface
The SIRIUS 3SF1 position and safety switches are suitable for networked systems as they can be connected to AS-Interface. The operating state is shown via the LEDs on the AS-i switches, thereby facilitating troubleshooting and saving time.
- No additional wiring as the entire ASIsafe electronics are integrated in the enclosure
- Via M12 connector, 4-pin
- Low loading of the data line (170 mA max. current consumption of the magnet) through direct integration of safety switches with tumbler
- 3SF13…-1BA4 position switches are suitable for series connection for protective door tumblers as they fulfil the high safety category SIL 2 / PL d in addition to the ASIsafe standard. A special logic enables the required double evaluation of the actuator within the switch. This enables the machine to be restarted quickly by unlocking the magnet, without opening the protective door.
SIRIUS 3SE6 non-contact safety switches
The non-contact safety switches are designed for mounting on movable protective guards (hoods, hinge switches, doors, etc.). Evaluation takes place, for example, via the SIRIUS 3SK safety relay or the SIRIUS 3RK3 modular safety system, compatible with the SIMATIC PLC.
SIRIUS 3SE63 non-contact safety switches, RFID
- Ideal for metal-working machines and plants thanks to RFID transponder rather than magnet technology
- Particularly high level of protection against interference, tampering and bypassing thanks to diverse coding versions
- Several RFID switches can be connected in the same safety circuit thanks to integrated crossover, open circuit and external voltage monitoring
- Only one switch pair required for safety category SIL 3 / PL e
- Long service life due to wear-free switching
- Increased plant availability thanks to extensive diagnostics functions
- Rugged, vibration- and detergent-resistant: IP69 degree of protection
- Optional magnetic catch (18N) prevents unintentional opening
- Can be adjusted quickly through a larger switching displacement than mechanical switches and boundary detection by LED indication on the switch
SIRIUS 3SE66, 3SE67 non-contact safety switches, magnet
- Only one switch pair (3SE66 contact block and 3SE67 coded switching magnet) required for safety category SIL 3 / PL e
- 3SE66/67 in enclosed design with IP67 degree of protection
- Long service life due to wear-free switching
- Suitable for confined spaces thanks to compact enclosure dimensions (for round and square)
- New design with LEDs, connectors and an additional signaling contact