# Solid State Relay, SPST-NO, 50 A, 460 VAC, Panel, Screw, Zero Crossing

![Product image](https://novapart.co/image/farnell:3455055/)

**URL**: https://novapart.co/products/3RF2150-1AA14/solid-state-relay-spst-no-50-a-460-vac-panel-screw
**SKU**: 3RF2150-1AA14
**Manufacturer**: SIEMENS
**Price**: €64.9700
**Stock**: 10+

## Specifications

| Parameter | Value |
|---|---|
| Product Range | SIRIUS 3RF21 Series |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3455055/)

**3RF2150-1AA14** 

**Data sheet** 

***phase-out type*** semiconductor relay, 1-phase 3RF2 width 22.5 mm, 50 A 48460 V / 24 V AC/DC screw terminal for mounting on available cooling surfaces 

|»s.|***phase-out type*** semiconductor relay, 1-phase 3RF2 width 22.5 mm, 50 A 48-<br>460 V / 24 V AC/DC screw terminal for mounting on available cooling surfaces|
|---|---|
|**product brand name**|SIRIUS|
|**product designation**|solid-state relay|
|**design of theproduct**|1-pole|
|**product type designation**|3RF21|
|**manufacturer's article number**||
|●_1 of the accessories that can be ordered|3RF2900-3PA88|
|●_2 of the accessories that can be ordered|3RF2950-0HA16|
|●_3 of the accessories that can be ordered|3RF2900-0EA18|
|●_4 of the accessories that can be ordered|3RF2950-0GA16|
|●_5 of the accessories that can be ordered|3RF2920-0FA08|
|**product designation**||
|●_2 of the accessories that can be ordered|power regulator|
|●_3 of the accessories that can be ordered|converter|
|●_4 of the accessories that can be ordered|load monitoring|
|● _5 of the accessories that can be ordered|load monitoring, basis|
|**General technical data**<br>~~a~~||
|**product function**<br>~~a~~|zero-point switching<br>~~a~~|
|**power loss[V·A] maximum**|66 VA|
|**power loss[W] for rated value of the current**||
|● at AC in hot operatingstate|66 W|
|● at AC in hot operatingstateperpole|66 W|
|● without load current share typical|0.5 W|
|**insulation voltage rated value**|600 V|
|surge voltage resistance of main circuit rated value|6 kV|
|**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**|Q|
|**Substance Prohibitance(day/month/year)**|05/01/2012|
|**SVHC substance name**|Lead CAS-No. 7439-92-1<br>Lead monoxide (lead oxide) CAS-No. 1317-36-8<br>2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-No. 71868-<br>10-5<br>Melamine CAS-No. 108-78-1|
|**Net Weight**|0.07g|
|**Main circuit**<br>~~I~~||
|**number ofpoles for main current circuit**<br>~~I~~|1<br>~~I~~|
|**number of NO contacts for main contacts**|1|
|**number of NC contacts for main contacts**|0|



|**SVHC substance name**|Lead CAS-No. 7439-92-1<br>Lead monoxide (lead oxide) CAS-No. 1317-36-8<br>2-methyl-1-(4-methylthiophenyl)-2-morpholinopropan-1-one CAS-No. 71868-<br>10-5<br>Melamine CAS-No. 108-78-1|
|---|---|
|**Net Weight**|0.07g|
|**Main circuit**<br>~~I~~||
|**number ofpoles for main current circuit**|1|
|**number of NO contacts for main contacts**|1|
|**number of NC contacts for main contacts**|0|



Subject to change without notice © Copyright Siemens 

3RF21501AA14 Page 1/6 

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|**type of voltage of the operating voltage**|AC|
|---|---|
|**operating voltage**||
|● at AC||
|— at 50 Hz rated value|48 ... 460 V|
|— at 60 Hz rated value|48 ... 460 V|
|**operating frequency rated value**|50 ... 60 Hz|
|**relative symmetrical tolerance of the operating frequency**|10 %|
|**operating range relative to the operating voltage at AC**||
|● at 50 Hz|40 ... 506 V|
|● at 60 Hz|40 ... 506 V|
|**operational current rated value maximum**|50 A|
|**operational current**||
|● at AC-1 at 400 V rated value|50 A|
|● at AC-51 rated value|50 A|
|● accordingto UL 508 rated value|50 A|
|**ampacity maximum**|50 A|
|**operational current minimum**|500 mA|
|**rate of voltage rise at the thyristor for main contacts**<br>**maximumpermissible**|1 000 V/µs|
|**blocking voltage at the thyristor for main contacts**<br>**maximumpermissible**|1 200 V|
|**reverse current of the thyristor**|10 mA|
|**derating temperature**|40 °C|
|**surge current resistance rated value**|600 A|
|**I2t value maximum**|1 800 A²·s|
|**Control circuit/ Control**||
|**type of voltage of the control supply voltage**|AC/DC|
|**control supply voltage 1 at AC**||
|● at 50 Hz|14 ... 26.5 V|
|● at 60 Hz|14 ... 26.5 V|
|**control supply voltage at AC**||
|● at 50 Hz full-scale value for signal<0> recognition|5 V|
|● at 60 Hz full-scale value for signal<0> recognition|5 V|
|● initial value for signal <1> detection|14 V|
|**control supply voltage frequency**||
|**● 1 rated value**|50 Hz|
|**● 2 rated value**|60 Hz|
|**control supply voltage 1 at DC rated value maximum**<br>**permissible**|30 V|
|**control supply voltage 1 at DC**|15 ... 24 V|
|**control supply voltage at DC**||
|● initial value for signal <1> detection|15 V|
|● full-scale value for signal<0> recognition|5 V|
|**symmetrical line frequency tolerance**|5 Hz|
|**control current at minimum control supply voltage**||
|● at AC|2 mA|
|● at DC|13 mA|
|control current at AC rated value|20 mA|
|control current at DC rated value|20 mA|
|**ON-delay time**|1 ms; additionallymax. one half-wave|
|**OFF-delay time**|15 ms; additionallymax. one half-wave|
|**Installation/ mounting/ dimensions**||
|fasteningmethod side-by-side mounting|Yes|
|**fastening method**|screw fixing|
|**design of the thread of the screw for securing the**<br>**equipment**|M4|
|**tightening torque of fixing screw maximum**|1.5 N·m|
|**tightening torque[lbf·in] of fixing screw maximum**|13 lbf·in|
|**height**|85 mm|
|**width**|22.5 mm|



Subject to change without notice © Copyright Siemens 

3RF21501AA14 Page 2/6 

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||**depth**|48 mm||
|---|---|---|---|
||**Connections/ Terminals**|||
||**product component removable terminal for auxiliary and**<br>**control circuit**|Yes||
||**type of electrical connection**|||
||● for main current circuit|screw-type terminals||
||● for auxiliaryand control circuit|screw-type terminals||
||**type of connectable conductor cross-sections**|||
||● for main contacts|||
||— solid|2x(1.5 ... 2.5 mm²), 2x(2.5 ... 6 mm²)||
||— finelystranded with core endprocessing|2x(1 ... 2.5 mm²), 2x(2.5 ... 6 mm²), 1x 10 mm²||
||● for AWG cables for main contacts|2x(14 ... 10)||
||**connectable conductor cross-section for main contacts**|||
||● solid or stranded|1.5 ... 6 mm²||
||● finelystranded with core endprocessing|1 ... 10 mm²||
||**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)||
||**AWG number as coded connectable conductor cross**<br>**section for main contacts**|18 ... 10||
||**tightening torque**|||
||● for main contacts with screw-type terminals|2 ... 2.5 N·m||
||● for auxiliary and control contacts with screw-type<br>terminals|0.5 ... 0.6 N·m||
||**tightening torque[lbf·in]**|||
||● for main contacts with screw-type terminals|7 ... 10.3 lbf·in||
||● for auxiliary and control contacts with screw-type<br>terminals|4.5 ... 5.3 lbf·in||
||**design of the thread of the connection screw**|||
||● for main contacts|M4||
||● of the auxiliaryand control contacts|M3||
||**stripped length of the cable**|||
||● for main contacts|10 mm||
||● for auxiliaryand control contacts|7 mm||
||**UL/CSA ratings**|||
||**operational current according to UL 508 rated value**|50 A||
||Electrical Safety|||
||**touch protection on the front according to IEC 60529**|finger-safe, for vertical contact from the front||
||**Ambient conditions**|||
||installation altitude at height above sea level maximum|1 000 m||
||**ambient temperature**|||
||● duringoperation|-25 ... +60 °C||
||● duringstorage|-55 ... +80 °C||
||**Electromagnetic compatibility**|||
||**conducted interference**|||
||● 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<br>61000-4-5|1 kV, behavior criterion 2||
||● due to high-frequency radiation according to IEC 61000-<br>4-6|140 dBuV in the frequency range 0.15 ... 80 MHz, behavior criterion 1||
||**field-based interference according to IEC 61000-4-3**|80 MHz ... 1 GHz 10 V/m, 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**<br>**CISPR11**|Class A for industrial environment||
||**field-bound HF interference emission according to CISPR11**|Class B for the domestic, business and commercial environments||
||**Short-circuit protection, design of the fuse link**|||
||manufacturer's article number|||



Subject to change without notice © Copyright Siemens 

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|● of gS fuse for semiconductor protection at NH design<br>usable|● of gS fuse for semiconductor protection at NH design<br>usable|3NE1802-0; These fuses have a smaller rated current than the semiconductor<br>relays|
|---|---|---|
|● of full range R fuse link for semiconductor protection at<br>cylindrical design usable||5SE1335; These fuses have a smaller rated current than the semiconductor<br>relays|
|● of back-up R fuse link for semiconductor protection at NH<br>design usable||3NE8017-1|
|● of back-up R fuse link for semiconductor protection at<br>cylindrical design 14 x 51 mm usable||3NC1450|
|● of back-up R fuse link for semiconductor protection at<br>cylindrical design 22 x 58 mm usable||3NC2250|
|manufacturer's article number of thegG fuse|||
|● at NH design usable||3NA6807; These fuses have a smaller rated current than the semiconductor<br>relays|
|● at NH design usable note||These fuses have a smaller rated current than the semiconductor relays|
|● at cylindrical design 22 x 58 mm usable||3NW6205-1; These fuses have a smaller rated current than the semiconductor<br>relays|
|● at cylindrical design 22 x 58 mm usable note||These fuses have a smaller rated current than the semiconductor relays|
|manufacturer's article number|||
|● of DIAZED fuse usable||5SB2711; These fuses have a smaller rated current than the semiconductor<br>relays|
|● of DIAZED fuse usable note||These fuses have a smaller rated current than the semiconductor relays|
|● of NEOZED fuse usable<br>~~a~~||5SE2320; These fuses have a smaller rated current than the semiconductor<br>relays<br>~~a~~|
|**Approvals Certificates**<br>~~a~~|||
|**Environment**<br>~~a~~|**General Product Approval**<br>~~a~~||



|relays<br>**Approvals Certificates**<br>~~a~~|relays<br>**Approvals Certificates**<br>~~a~~|relays<br>**Approvals Certificates**<br>~~a~~|relays<br>**Approvals Certificates**<br>~~a~~|relays<br>**Approvals Certificates**<br>~~a~~|relays<br>**Approvals Certificates**<br>~~a~~|
|---|---|---|---|---|---|
|**Environment**<br>**General Product Approval**||||||
|Environmental Con-<br>firmations<br>~~——~~<br>e<br>°<br>o><br>“|||FAL|CE|UK<br>eE&|
|**EMV**<br>**Test Certificates**||**other**||||
|Type Test Certific-<br>ates/Test Report<br>Special Test Certific-<br>ate<br>Confirmation<br>Miscellaneous<br>Confirmation<br>~~Cy~~||||||
|**other**<br>**Railway**||||||
|Special Test Certific-<br>ate<br>~~_~~||||||
|QC PASS||||||
|**Further information**<br>~~ee~~||||||
|**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=3RF2150-1AA14||||||
|**Cax online generator**||||||
|https://support.automation.siemens.com/WW/CAXorder/default.aspx?lang=en&mlfb=3RF2150-1AA14||||||
|**Service&Support (Manuals, Certificates, Characteristics, FAQs,...)**||||||
|https://support.industry.siemens.com/cs/ww/en/ps/3RF2150-1AA14||||||
|**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)**||**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)**||**Image database (product images, 2D dimension drawings, 3D models, device circuit diagrams, EPLAN macros, ...)**||
|https://www.automation.siemens.com/bilddb/cax_de.aspx?mlfb=3RF2150-1AA14&lang=en||||||



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**last modified:** 

4/4/2026 

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## Links

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- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/siemens/3rf2150-1aa14/solid-state-relays/dp/3455055)
---

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