# Load Monitor, Basis, 3RF2 Series Solid State Relay
**URL**: https://novapart.co/products/3RF2920-0FA08/load-monitor-basis-3rf2-series-solid-state-relay
**SKU**: 3RF2920-0FA08
**Manufacturer**: SIEMENS
**Category**: Automation & Process Control || Industrial Switches & Control Stations || Industrial Switch Accessories
**Price**: €104.4000
**Stock**: 10+
## Specifications
| Parameter | Value |
|---|---|
| Svhc | To Be Advised |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:3481093/)
**Data sheet**
**3RF2920-0FA08**
***phase-out type*** load monitoring basis current range 20 A / 40 °C control voltage 24 V DC output NO for semiconductor relay/contactor
||***phase-out type*** load monitoring basis current range 20 A / 40 °C control
voltage 24 V DC output NO for semiconductor relay/contactor|
|---|---|
|**product brand name**|SIRIUS|
|**product designation**|load monitoring, basis|
|**product type designation**|3RF29|
|**manufacturer's article number**||
|●_1 of the accessories that can be ordered|3RF2900-0RA88|
|**product designation**||
|● _1 of the accessories that can be ordered|sealable end cover|
|**General technical data**
~~ees~~||
|**product function**
~~ees~~|for 3RF21/23 solid-state relays/solid-state contactors
~~ees~~|
|**power loss[W] for rated value of the current**||
|● without load current share typical|0.6 W|
|**insulation voltage rated value**|600 V|
|**degree ofpollution**|3|
|**protection class IP**|IP20|
|protection class IP on the front accordingto IEC 60529|IP20|
|**shock resistance according to IEC 60068-2-27**|15g/ 11 ms|
|**vibration resistance according to IEC 60068-2-6**|2g|
|**reference code according to IEC 81346-2**|B|
|**Substance Prohibitance(day/month/year)**|05/01/2012|
|**SVHC substance name**|Lead CAS-No. 7439-92-1
Lead monoxide (lead oxide) CAS-No. 1317-36-8
2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-No. 71868-
10-5
Melamine CAS-No. 108-78-1|
|**Net Weight**|71g|
|**Main circuit**
~~ees~~||
|**number ofpoles for main current circuit**
~~ees~~|0
~~ees~~|
|**number of NO contacts for main contacts**|0|
|**number of NC contacts for main contacts**|0|
|**operating frequency rated value**|50 ... 60 Hz|
|**relative symmetrical tolerance of the operating frequency**|10 %|
|**operational current**||
|● at AC-51 rated value|20 A|
|**derating temperature**|40 °C|
|**teach range current initial value**|0.65 A|
|**teach range current full-scale value**|20 A|
|**partial load for load monitoring**|0.65 A|
|**Control circuit/ Control**
~~Ose~~||
|**type of voltage**
~~Ose~~|DC
~~Ose~~|
|**control supply voltage at DC rated value**|18 ... 30 V|
Subject to change without notice © Copyright Siemens
3RF29200FA08 Page 1/4
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|control supply voltage at DC full-scale value for signal<0>
recognition|control supply voltage at DC full-scale value for signal<0>
recognition|5 V|
|---|---|---|
|**control current at minimum control supply voltage**|||
|● at DC
~~re~~||2 mA
~~re~~|
|control current at DC rated value
~~re~~||25 mA
~~re~~|
|**Auxiliary circuit**|||
|**number of NC contacts for auxiliary contacts**||0|
|**number of NO contacts for auxiliary contacts**
~~re~~||0
~~re~~|
|number of CO contacts for auxiliarycontacts
~~re~~||0
~~re~~|
|**Installation/ mounting/ dimensions**|||
|fasteningmethod side-by-side mounting||Yes|
|**fastening method**||clip-on|
|**height**||101.5 mm|
|**width**
~~re~~||22.5 mm
~~re~~|
|**depth**
~~re~~||67 mm
~~re~~|
|**Connections/ Terminals**|||
|**type of electrical connection**|||
|● for auxiliaryand control circuit||screw-type terminals|
|**type of connectable conductor cross-sections**|||
|● for auxiliaryand control contacts|||
|— solid||1x(0.5 ... 2.5 mm²), 2x(0.5 ... 1 mm²)|
|— finelystranded with core endprocessing||1x(0.5 ... 2.5 mm²), 2x(0.5 ... 1 mm²)|
|— finelystranded without core endprocessing||1x(0.5 ... 2.5 mm²), 2x(0.5 ... 1 mm²)|
|● for AWG cables for auxiliaryand control contacts||1x(20 ... 12)|
|tightening torque for auxiliary and control contacts with screw-
type terminals||0.5 ... 0.6 N·m|
|tightening torque [lbf·in] for auxiliary and control contacts with
screw-type terminals||4.5 ... 5.3 lbf·in|
|design of the thread of the connection screw of the auxiliary and
control contacts
~~re~~||M3
~~re~~|
|stripped length of the cable for auxiliaryand control contacts
~~re~~||7 mm
~~re~~|
|Electrical Safety|||
|**touch protection on the front according to IEC 60529**||finger-safe, for vertical contact from the front|
|**Ambient conditions**
~~ee~~|||
|installation altitude at height above sea level maximum
~~ee~~||1 000 m
~~ee~~|
|**ambient temperature**|||
|● duringoperation||-25 ... +60 °C|
|● duringstorage||-55 ... +80 °C|
|**Electromagnetic compatibility**
~~ess~~|||
|**conducted interference**
~~ess~~||~~ess~~|
|● due to burst accordingto IEC 61000-4-4||2 kV / 5 kHz, behavior criterion 2|
|● due to conductor-earth surge accordingto IEC 61000-4-5||2 kV, behavior criterion 2|
|● due to conductor-conductor surge according to IEC
61000-4-5||1 kV, behavior criterion 2|
|● due to high-frequency radiation according to IEC 61000-
4-6||140 dBuV in the frequency range 0.15 ... 80 MHz, behavior criterion 1|
|**electrostatic discharge according to IEC 61000-4-2**||4 kV contact discharging/ 8 kV air discharging, behavior criterion 2|
|**conducted HF interference emissions according to**
**CISPR11**
~~re~~||Class A for industrial environment
~~re~~|
|**field-bound HF interference emission according to CISPR11**
~~re~~||Class B for the domestic, business and commercial environments
~~re~~|
|**Approvals Certificates**|||
|**Environment**|**General Product Approval**||
Subject to change without notice © Copyright Siemens
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Type Test CertificConfirmation Confirmation ates/Test Report a ~~— R~~ e
## ~~e~~ **Further information** ~~e~~ **Information on the packaging** https://support.industry.siemens.com/cs/ww/en/view/109813875
**Information for data generation and storage** https://support.industry.siemens.com/cs/ww/en/view/109995012
**Information- and Downloadcenter (Catalogs, Brochures,…)** https://www.siemens.com/ic10
**Industry Mall (Online ordering system)** https://mall.industry.siemens.com/mall/en/en/Catalog/product?mlfb=3RF2920-0FA08 **Cax online generator** https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RF2920-0FA08 **Service&Support (Manuals, Certificates, Characteristics, FAQs,...)** https://support.industry.siemens.com/cs/ww/en/ps/3RF2920-0FA08
**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)** https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RF2920-0FA08&lang=en
Subject to change without notice © Copyright Siemens
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## Links
- [View this product on Novapart](https://novapart.co/products/3RF2920-0FA08/load-monitor-basis-3rf2-series-solid-state-relay)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/siemens/3rf2920-0fa08/control-gear-switch-gear/dp/3481093)
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