Description Mechan Controls have been manufacturing electronic safety switches since 1973. The SSS safety switch uses this tried and tested, electronic switching technology and adds the benefits of having the safety contact outputs in the switch itself. The SSS is a tamper-proof, standalone saftey switch that can be used to switch relays, contactors or safety relays directly. Only a Mechan actuator will operate the SSS switch correctly. By removing the need for a seperate control unit, we have made it possible to use our top of the range electronic switching technology in smaller, simpler safety systems. With the SSS you get the reliability of the Mechan electronic safety system with the ease of installation of a standard magnetic switch like the MAGNASAFE. Suitable for single or dual channel circuits, the SSS safety switch has 2 volt free contact outputs ( 2 N/O or 1 N/O + 1 N/C ). The fixed switch also has an LED, giving true indication. When the moving part of the switch ( Actuator ) is brought within the operating range of the fixed switch, (8mm target to target), a dynamic signal is generated in the actuator and transmitted to the switch. The N/O contact(s) in the switch will close and the N/C contact will open. Approvals 
Contacts 
Dimensions
Dimension in MM
Technical Specification
| Specifications | | Power Supply | 24V dc | | Power Consumption | 2VA | | Safety Contacts | 1 or 2 N/O | | Safety Contact Rating | 2A/230VAC; 2A/30VDC | | Auxiliary Contact | Up to 1 N/C Contact | | Auxiliary Contact Rating | 2A/230VAC; 2A/30VDC | | Operating Temperature | -10C to +55C | | Housing | ABS Case, Blue, Resin Filled
| | Environmental Protection | IP67 | | Mounting | Target to Target | | Switching Distance | 7 On , 12 Off | | Indication | Output LED Green | | Approval | UL 508 Industrial Control Equipment | | Safety Related Data | | | B10d | 2000000 | | MTTFd | High > 100 Years
Based on usage rate of 360 days/year, 24 hours/day, 10 operations/hour | | TM (Mission Time) | > 20 Years | | PFHd | 4.3 x 10-8 (See note 1) | | PFH | 6.25 x 10-8 | | DC | 99% | | SFF | 99% | | Note 1 | Based on dual channel wiring according to Category 3. Diagnostic coverage provided by downstream control logic. DC - medium, MTTFd = 100 years
May be suitable for performance level applications PLe or PLd according to ISO 13849-1. (SIL 3 or SIL2 according to IEC 62061) |
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