3UG4651-1AA30

**3UG4651-1AA30** 

**Data sheet** 

!!! product phase-out !!! the preferred successor is 3UG5651-1CW30 digital monitoring relay speed monitoring from 0.1 to 2200 r/min overshoot and undershoot supply voltage: 24 V AC/DC 50 to 60 Hz DC and AC without electrical isolation to the measuring circuit ON-delay 1 to 900 s tripping delay 0.1 to 99.9 s hysteresis 0.1 to 99 r/min 1 changeover contact with or without fault buffer 

|a<br>——_<br>mg<br>Paar|!!! product phase-out !!! the preferred successor is 3UG5651-1CW30 digital<br>monitoring relay speed monitoring from 0.1 to 2200 r/min overshoot and<br>undershoot supply voltage: 24 V AC/DC 50 to 60 Hz DC and AC without electrical<br>isolation to the measuring circuit ON-delay 1 to 900 s tripping delay 0.1 to 99.9 s<br>hysteresis 0.1 to 99 r/min 1 changeover contact with or without fault buffer|
|---|---|
|**product brand name**|SIRIUS|
|**product designation**|Speed monitoringrelaywith digital setting|
|**product type designation**|3UG4|
|**General technical data**||
|**product function**|RPM monitoringrelay|
|**design of the display**|LCD|
|||
|● apparentpower consumption at AC||
|— at 24 V maximum|2.5 VA|
|**insulation voltage**||
|**● for overvoltage category III according to IEC 60664**||
|— with degree ofpollution 3 rated value|300 V|
|**degree ofpollution**|3|
|type of voltage of the control supplyvoltage|AC/DC|
|**surge voltage resistance rated value**|4 kV|
|**shock resistance according to IEC 60068-2-27**|sinusoidal half-wave 15g/ 11 ms|
|**mechanical service life(operating cycles) typical**|10 000 000|
|electrical endurance(operatingcycles)at AC-15 at 230 V typical|100 000|
|**reference code according to IEC 81346-2**|K|
|**relative repeat accuracy**|1 %|
|**Substance Prohibitance(day/month/year)**|05/01/2012|
|**SVHC substance name**|Lead monoxide (lead oxide) CAS-No. 1317-36-8<br>Melamine CAS-No. 108-78-1<br>6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol CAS-No. 119-47-1|
|**Net Weight**|0.165 kg|
|**Product Function**||
|**product function**||
|● standstill monitoring|No|
|● rotation speed monitoring|Yes|
|● error memory|Yes|
|● adjustable open/closed-circuit currentprinciple|Yes|
|● external reset|Yes|
|● auto-RESET|Yes|
|● manual RESET|Yes|
|suitabilityfor use safety-related circuits|No|
|**Control circuit/ Control**||
|**control supply voltage at AC**||
|● at 50 Hz rated value|24 V|
|● at 60 Hz rated value|24 V|



3UG46511AA30 Page 1/4 

Subject to change without notice © Copyright Siemens 

6/1/2026 

|**control supply voltage at DC rated value**|24 V|
|---|---|
|**operating range factor control supply voltage rated value at**<br>**DC**||
|● initial value|0.8|
|● full-scale value|1.1|
|**operating range factor control supply voltage rated value at**<br>**AC at 50 Hz**||
|● initial value|1.1|
|● full-scale value|0.8|
|**operating range factor control supply voltage rated value at**<br>**AC at 60 Hz**||
|● initial value|1.1|
|● full-scale value|0.8|
|**Measuring circuit**||
|**measurable line frequency**|50 ... 60 Hz|
|**adjustable response delay time**||
|● when starting|1 ... 900 s|
|● with lower or upper limit violation|0.1 ... 99.9 s|
|**buffering time in the event ofpower failure minimum**|10 ms|
|**accuracy of digital display**|+/- 1 Digit|
|**Precision**||
|**relative metering precision**|10 %|
|**Communication/ Protocol**||
|protocol is supported IO-Link protocol|No|
|**Auxiliary circuit**||
|number of NC contacts delayed switching|0|
|number of NO contacts delayed switching|0|
|number of CO contacts delayed switching|1|
|**operating frequency with 3RT2 contactor maximum**|5 000 1/h|
|**Inputs/ Outputs**||
|design of input feedback input|No|
|**number of outputs as contact-affected switching element**||
|● for signalingfunction||
|— instantaneous contact|0|
|— delayed switching|1|
|● safety-related||
|— delayed switching|0|
|— instantaneous contact|0|
|**number of outputs as contact-less semiconductor**<br>**switching element**||
|● for signalingfunction||
|— delayed switching|0|
|— instantaneous contact|0|
|● safety-related||
|— delayed switching|0|
|— instantaneous contact|0|
|**ampacity of the output relay at AC-15**||
|● at 250 V at 50/60 Hz|3 A|
|**ampacity of the output relay at DC-13**||
|● at 24 V|1 A|
|● at 125 V|0.2 A|
|● at 250 V|0.1 A|
|**operational current at 17 V minimum**|5 mA|
|**continuous current of the DIAZED fuse link of the output**<br>**relay**|4 A|
|**Electromagnetic compatibility**||
|**conducted interference**||
|● due to burst accordingto IEC 61000-4-4|2 kV|
|● due to conductor-earth surge accordingto IEC 61000-4-5|2 kV|
|● due to conductor-conductor surge according to IEC|1 kV|



3UG46511AA30 Page 2/4 

Subject to change without notice © Copyright Siemens 

6/1/2026 

|61000-4-5||
|---|---|
|**field-based interference according to IEC 61000-4-3**|10 V/m|
|**electrostatic discharge according to IEC 61000-4-2**|6 kV contact discharge / 8 kV air discharge|
|**Galvanic isolation**||
|**galvanic isolation**||
|● between input and output|Yes|
|● between the outputs|No|
|IEC 61508||
|SafetyIntegrityLevel(SIL)accordingto IEC 61508|without|
|Electrical Safety||
|**protection class IP on the front according to IEC 60529**|IP20|
|**Connections/ Terminals**||
|**product component removable terminal for auxiliary and**<br>**control circuit**|Yes|
|**type of electrical connection**|screw terminal|
|**type of connectable conductor cross-sections**||
|● solid|1x(0.5 ... 4 mm²), 2x(0.5 ... 2.5 mm²)|
|● finelystranded with core endprocessing|1x(0.5 ... 2.5 mm²), 2x(0.5 ... 1.5 mm²)|
|● for AWG cables solid|2x(20 ... 14)|
|● for AWG cables stranded|2x(20 ... 14)|
|**connectable conductor cross-section**||
|● solid|0.5 ... 4 mm²|
|● finelystranded with core endprocessing|0.5 ... 2.5 mm²|
|**AWG number as coded connectable conductor cross**<br>**section**||
|● solid|20 ... 14|
|● stranded|20 ... 14|
|tighteningtorque with screw-type terminals|0.8 ... 1.2 N·m|
|**Installation/ mounting/ dimensions**||
|**mounting position**|any|
|**fastening method**|screw and snap-on mounting|
|**height**|86 mm|
|**width**|22.5 mm|
|**depth**|102 mm|
|**required spacing**||
|● with side-by-side mounting||
|— forwards|0 mm|
|— backwards|0 mm|
|— upwards|0 mm|
|— downwards|0 mm|
|— at the side|0 mm|
|● forgroundedparts||
|— forwards|0 mm|
|— backwards|0 mm|
|— upwards|0 mm|
|— at the side|0 mm|
|— downwards|0 mm|
|● for liveparts||
|— forwards|0 mm|
|— backwards|0 mm|
|— upwards|0 mm|
|— downwards|0 mm|
|— at the side|0 mm|
|**Ambient conditions**||
|installation altitude at height above sea level maximum|2 000 m|
|**ambient temperature**||
|● duringoperation|-25 ... +60 °C|
|● duringstorage|-40 ... +80 °C|
|● during transport|-40 ... +80 °C|



3UG46511AA30 Page 3/4 

Subject to change without notice © Copyright Siemens 

6/1/2026 

**==> picture [510 x 579] intentionally omitted <==**

**----- Start of picture text -----**<br>
Approvals Certificates<br>SS Environmental Product Declaration<br>● global warming potential [CO2 eq] / during manufacturing 4.44 kg<br>● global warming potential [CO2 eq] / during sales 0.0341 kg<br>● global warming potential [CO2 eq] / during operation 13.7 kg<br>● global warming potential [CO2 eq] / after end of life -1.06 kg<br>● global warming potential [CO2 eq] / total 17.1 kg<br>Environment General Product Approval<br>Environmental Con-<br>firmations<br>—— © UK<br>EPD @ fH ¢E4<br>General Product Ap- EMV Test Certificates Maritime application<br>proval<br>- -<br>Special Test Certific Type Test Certific<br>ate ates/Test Report<br>ce [; &<br>Maritime application other Railway<br>Confirmation Confirmation Special Test Certific-<br>ate<br>ee a<br>e Further information e<br>Information on the packaging<br>https://support.industry.siemens.com/cs/ww/en/view/109813875<br>Information for data generation and storage<br>https://support.industry.siemens.com/cs/ww/en/view/109995012<br>Information- and Downloadcenter (Catalogs, Brochures,…)<br>https://www.siemens.com/ic10<br>Industry Mall (Online ordering system)<br>https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3UG4651-1AA30<br>Cax online generator<br>https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3UG4651-1AA30<br>Service&Support (Manuals, Certificates, Characteristics, FAQs,...)<br>https://support.industry.siemens.com/cs/ww/en/ps/3UG4651-1AA30<br>Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)<br>https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3UG4651-1AA30&lang=en<br>last modified: 4/4/2026<br>**----- End of picture text -----**<br>


3UG46511AA30 Page 4/4 

Subject to change without notice © Copyright Siemens 

6/1/2026