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Siemens 3UG5851-2AA40 — Process / Temperature Controllers

Siemens 3UG5851-2AA40 Speed Monitoring Relay, 0.1-6000 r/min

MPN3UG5851-2AA40
Active

Siemens 3UG5851-2AA40, Speed monitoring relay, digital, 0.1-6000 r/min, IO-Link, 24 V DC, spring-loaded terminals.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3UG5851-2AA40 — Identification
ParameterValue
Product familySpeed monitoring
3UG5851-2AA40 — Approvals
ParameterValue
RoHS complianceSince: 01-06-23
REACH Art. 33 (SVHC disclosure)Lead CAS-No. 7439-92-1 > 0,1 % (w / w)
3UG5851-2AA40 — Other specifications
ParameterValue
Group codeR711
Product group5885
Product classA: Standard product which is a stock item could be returned within the returns guidelines/period.
Export control regulationsAL : N / ECCN : EAR99

Product details

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.

RoHS compliant since 01 June 2023.

Frequently asked questions

What is the group code and product group for this relay?

Group code R711, Product group 5885.

What compliance documentation is available?

RoHS compliance since 01 June 2023; REACH contains Lead above 0.1% w/w. Export control is AL: N / ECCN: EAR99.

MPN
3UG5851-2AA40