The Siemens 3UG5851-2AA40 is a digital monitoring relay for speed supervision, covering 0.1 to 6000 r/min with overshoot and undershoot detection. It operates on 24 V DC and includes IO-Link communication for parameterization and diagnostics. Two changeover contacts with spring-loaded terminals simplify wiring in control panels. The ON-delay and tripping delay are independently adjustable from 0.1 to 999.9 s.
Compliance & Documentation
RoHS compliant since 01 June 2023. REACH Article 33 duty to inform applies due to Lead (CAS 7439-92-1) above 0.1% w/w. Export control classification is AL: N / ECCN: EAR99.