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Siemens 3RF2120-2AA22
Semiconductor relay, 1-phase 3RF2 width 22.5 mm
- MPN
- 3RF2120-2AA22
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What is the Siemens 3RF2120-2AA22?
semiconductor relay, 1-phase 3RF2 width 22.5 mm, 20 A 24-230 V / 110-230 V AC spring-loaded terminal for mounting on available cooling surfaces
Specifications
General
| product brand name | SIRIUS |
| product designation | solid-state relay |
| design of the product | 1-pole |
| product type designation | 3RF21 |
General technical data
| product function | zero-point switching |
| power loss [V∙A] maximum | 28.6 V·A |
| power loss [W] for rated value of the current — at AC in hot operating state | 28.6 W |
| power loss [W] for rated value of the current — at AC in hot operating state per pole | 28.6 W |
| power loss [W] for rated value of the current — without load current share typical | 3.5 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 according to IEC 60529 | IP20 |
| shock resistance according to IEC 60068-2-27 | 15 g / 11 ms |
| vibration resistance according to IEC 60068-2-6 | 2 g |
| 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 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 | 0.058 kg |
Main circuit
| number of poles for main current circuit | 1 |
| 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 | 24 ... 230 V |
| operating voltage — at AC — at 60 Hz rated value | 24 ... 230 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 | 20 ... 253 V |
| operating range relative to the operating voltage at AC — at 60 Hz | 20 ... 253 V |
| operational current rated value maximum | 20 A |
| operational current — at AC-1 at 400 V rated value | 20 A |
| operational current — at AC-51 rated value | 20 A |
| operational current — according to UL 508 rated value | 20 A |
| ampacity maximum | 20 A |
| operational current minimum | 100 mA |
| rate of voltage rise at the thyristor for main contacts maximum permissible | 500 V/µs |
| blocking voltage at the thyristor for main contacts maximum permissible | 800 V |
| reverse current of the thyristor | 10 mA |
| derating temperature | 40 °C |
| surge current resistance rated value | 200 A |
| I2t value maximum | 200 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 |
| control supply voltage 1 at AC — at 60 Hz | 110 ... 230 V |
| control supply voltage at AC — at 50 Hz full-scale value for signal<0> recognition | 40 V |
| control supply voltage at AC — at 60 Hz full-scale value for signal<0> recognition | 40 V |
| control supply voltage at AC — initial value for signal <1> detection | 90 V |
| control supply voltage frequency — 1 rated value | 50 Hz |
| control supply voltage frequency — 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; additionally max. one half-wave |
| OFF-delay time | 40 ms; additionally max. one half-wave |
Installation/ mounting/ dimensions
| fastening method side-by-side mounting | Yes |
| fastening method | screw fixing |
| design of the thread of the screw for securing the 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 |
| depth | 48 mm |
Connections/ Terminals
| product component removable terminal for auxiliary and control circuit | Yes |
| type of electrical connection — for main current circuit | spring-loaded terminals |
| type of electrical connection — for auxiliary and control circuit | spring-loaded terminals |
| type of connectable conductor cross-sections — for main contacts — solid | 2x (0.5 ... 2.5 mm²) |
| type of connectable conductor cross-sections — for main contacts — finely stranded with core end processing | 2x (0.5 ... 1.5 mm²) |
| type of connectable conductor cross-sections — for main contacts — finely stranded without core end processing | 2x (0.5 ... 2.5 mm²) |
| type of connectable conductor cross-sections — for AWG cables for main contacts | 2x (18 ... 14) |
| connectable conductor cross-section for main contacts — solid or stranded | 0.5 ... 2.5 mm² |
| connectable conductor cross-section for main contacts — finely stranded with core end processing | 0.5 ... 1.5 mm² |
| connectable conductor cross-section for main contacts — finely stranded without core end processing | 0.5 ... 2.5 mm² |
| type of connectable conductor cross-sections — for auxiliary and control contacts — solid | 0.5 ... 1.5 mm² |
| type of connectable conductor cross-sections — for auxiliary and control contacts — finely stranded with core end processing | 0.5 ... 2.5 mm² |
| type of connectable conductor cross-sections — for auxiliary and control contacts — finely stranded without core end processing | 0.5 ... 2.5 mm² |
| type of connectable conductor cross-sections — for AWG cables for auxiliary and control contacts | 1x (20 ... 12) |
| AWG number as coded connectable conductor cross section for main contacts | 14 ... 10 |
| tightening torque — for main contacts with screw-type terminals | 2 ... 2.5 N·m |
| stripped length of the cable — for main contacts | 10 mm |
| stripped length of the cable — for auxiliary and control contacts | 10 mm |
UL/CSA ratings
| operational current according to UL 508 rated value | 20 A |
| 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 — during operation | -25 ... +60 °C |
| ambient temperature — during storage | -55 ... +80 °C |
Electromagnetic compatibility
| conducted interference — due to burst according to IEC 61000-4-4 | 2 kV / 5 kHz, behavior criterion 2 |
| conducted interference — due to conductor-earth surge according to IEC 61000-4-5 | 2 kV, behavior criterion 2 |
| conducted interference — due to conductor-conductor surge according to IEC 61000-4-5 | 1 kV, behavior criterion 2 |
| conducted interference — due to high-frequency radiation according to IEC 61000-4-6 | 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 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 — of gS fuse for semiconductor protection at NH design usable | 3NE1814-0 |
| manufacturer's article number — of full range R fuse link for semiconductor protection at cylindrical design usable | 5SE1325 |
| manufacturer's article number — of back-up R fuse link for semiconductor protection at NH design usable | 3NE8015-1 |
| manufacturer's article number — of back-up R fuse link for semiconductor protection at cylindrical design 10 x 38 mm usable | 3NC1032 |
| manufacturer's article number — of back-up R fuse link for semiconductor protection at cylindrical design 14 x 51 mm usable | 3NC1425 |
| manufacturer's article number — of back-up R fuse link for semiconductor protection at cylindrical design 22 x 58 mm usable | 3NC2225 |
| manufacturer's article number of the gG fuse — at NH design usable | 3NA6803; These fuses have a smaller rated current than the semiconductor relays |
| manufacturer's article number of the gG fuse — at NH design usable note | These fuses have a smaller rated current than the semiconductor relays |
| manufacturer's article number of the gG fuse — at cylindrical design 10 x 38 mm usable | 3NW6001-1; These fuses have a smaller rated current than the semiconductor relays |
| manufacturer's article number of the gG fuse — at cylindrical design 10 x 38 mm usable note | These fuses have a smaller rated current than the semiconductor relays |
| manufacturer's article number of the gG fuse — at cylindrical design 14 x 51 mm usable | 3NW6101-1; These fuses have a smaller rated current than the semiconductor relays |
| manufacturer's article number of the gG fuse — at cylindrical design 14 x 51 mm usable note | These fuses have a smaller rated current than the semiconductor relays |
| manufacturer's article number — of NEOZED fuse usable | 5SE2306; These fuses have a smaller rated current than the semiconductor relays |
Downloads & documentation
Official documents from Siemens, downloaded directly from the manufacturer.
Data sheets & manuals
3RF2120-2AA22: frequently asked questions
When can 3RF2120-2AA22 be shipped?
3RF2120-2AA22 is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up 3RF2120-2AA22 in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for 3RF2120-2AA22 and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for 3RF2120-2AA22, subject to availability and destination.
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Siemens 3RF2120-2AA22Price and lead time confirmed within 1 business day
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