3RF2050-1AA26

**3RF2050-1AA26** 

**Data sheet** 

***phase-out type*** semiconductor relay, 1-phase 3RF2 width 45 mm, 50 A 48600 V / 110-230 V AC screw terminal for mounting on available cooling surfaces 

|Ra i<br>ca<br>‘6...@<br>oo|***phase-out type*** semiconductor relay, 1-phase 3RF2 width 45 mm, 50 A 48-<br>600 V / 110-230 V AC 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**|3RF20|
|**General technical data**<br>~~a~~||
|**product function**<br>~~a~~|zero-point switching<br>~~a~~|
|**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|3.5 W|
|**insulation voltage rated value**|600 V|
|**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)**|05/28/2009|
|**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**|0.086 kg|
|**Main circuit**<br>~~a~~||
|**number ofpoles for main current circuit**<br>~~a~~|1<br>~~a~~|
|**number of NO contacts for main contacts**|1|
|**number of NC contacts for main contacts**|0|
|**type of voltage of the operating voltage**|AC|
|**operating voltage**||
|● at AC||
|— at 50 Hz rated value|48 ... 600 V|
|— at 60 Hz rated value|48 ... 600 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 ... 660 V|
|● at 60 Hz|40 ... 660 V|
|**operational current rated value maximum**|50 A|
|**operational current**||
|● at AC-1 at 400 V rated value|50 A|



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|● 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**|1 600 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|
|**control supply voltage 1 at AC**||
|● at 50 Hz|110 ... 230 V|
|● at 60 Hz|110 ... 230 V|
|**control supply voltage at AC**||
|● at 50 Hz full-scale value for signal<0> recognition|40 V|
|● at 60 Hz full-scale value for signal<0> recognition|40 V|
|● initial value for signal <1> detection|90 V|
|**control supply voltage frequency**||
|**● 1 rated value**|50 Hz|
|**● 2 rated value**|60 Hz|
|**symmetrical line frequency tolerance**|5 Hz|
|**control current at minimum control supply voltage**||
|● at AC|2 mA|
|control current at AC rated value|15 mA|
|**ON-delay time**|40 ms; additionallymax. one half-wave|
|**OFF-delay time**|40 ms|
|**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**|58 mm|
|**width**|45 mm|
|**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 auxiliary and control contacts|1x (20 ... 12)|



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|**AWG number as coded connectable conductor cross**|14 ... 10|
|---|---|
|**section for main contacts**||
|**tightening torque**||
|● for main contacts with screw-type terminals|2 ... 2.5 N·m|
|● for auxiliary and control contacts with screw-type|0.5 ... 0.6 N·m|
|terminals||
|**tightening torque[lbf·in]**||
|● for main contacts with screw-type terminals|7 ... 10.3 lbf·in|
|● for auxiliary and control contacts with screw-type|4.5 ... 5.3 lbf·in|
|terminals||
|**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**<br>~~a~~||
|**operational current according to UL 508 rated value**|50 A|
|Electrical Safety<br>**touch protection on the front according to IEC 60529**<br>finger-safe, for vertical contact from the front<br>~~|~~||
|**Ambient conditions**<br>~~a~~||
|installation altitude at height above sea level maximum|1 000 m|
|**ambient temperature**||
|● duringoperation|-25 ... +60 °C|
|● duringstorage|-55 ... +80 °C|



- ~~a~~ **Electromagnetic compatibility conducted interference** ● due to burst according to IEC 61000-4-4g to IEC 61000-4-4 to IEC 61000-4-4 2 kV / 5 kHz, behavior criterion 2 ● due to conductor-earth surge according to IEC 61000-4-5ge according to IEC 61000-4-5e according to IEC 61000-4-5g to IEC 61000-4-5 to IEC 61000-4-5 2 kV, behavior criterion 2 ● due to conductor-conductor surge according to IEC 1 kV, behavior criterion 2 61000-4-5 

● due to burst according to IEC 61000-4-4g to IEC 61000-4-4 to IEC 61000-4-4 2 kV / 5 kHz, behavior criterion 2 ● due to conductor-earth surge according to IEC 61000-4-5ge according to IEC 61000-4-5e according to IEC 61000-4-5g to IEC 61000-4-5 to IEC 61000-4-5 2 kV, behavior criterion 2 ● due to conductor-conductor surge according to IEC 1 kV, behavior criterion 2 61000-4-5 ● due to high-frequency radiation according to IEC 61000140 dBuV in the frequency range 0.15 ... 80 MHz, behavior criterion 1 4-6 **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** Class A for industrial environment **CISPR11** ~~ee~~ **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 ● of gS fuse for semiconductor protection at NH design 3NE1803-0; These fuses have a smaller rated current than the semiconductor usable relays ● of back-up R fuse link for semiconductor protection at NH 3NE8017-1 design usable ● of back-up R fuse link for semiconductor protection at 3NC1450 cylindrical design 14 x 51 mm usable ● of back-up R fuse link for semiconductor protection at 3NC2250 cylindrical design 22 x 58 mm usable manufacturer's article number of the gG fuse ● at NH design usable 3NA6807-6; These fuses have a smaller rated current than the semiconductor relays 

## **Short-circuit protection, design of the fuse link** 

● at NH design usable note These fuses have a smaller rated current than the semiconductor relays 

~~a~~ **Approvals Certificates Environment General Product Approval** Environmental Confirmations **EMV Test Certificates other** 

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- Type Test Certific 

Confirmation 

Confirmation 

ates/Test Report 

~~sii~~ **Further information 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 

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**last modified:** 

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