Siemens SIEM safety switching device

Sirius safety relay for safety-oriented speed monitoring AC/DC 110-240 V, 45 mm spring clamp. Unlatched: 2 s, delayed: 0 MK: 2 electrically, NAMUR version, auto-start/manual start. Basic unit maximum achievable PL according to EN 13849-1: e, maximum achievable SIL according to IEC 61508: 3. Sirius 3TK28 speed monitor for safe standstill and speed monitoring in machines and systems, e.g., for motors. The device is suitable for all common sensors and features an adjustable release delay. With simple parameterization and continuous diagnostics via the display, troubleshooting is always quick and easy. Thanks to the integrated protective door monitoring, the device ensures higher safety by only allowing the system to be released in a safe state. The devices are available in various voltages and with screw or spring clamp connections. Accessories such as connection cables, adapters, and labeling plates facilitate handling. Safety is a Sirius business.