{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RF2170-1AA06","brand":"Siemens","brandSlug":"siemens","productSlug":"3RF2170-1AA06","canonicalUrl":"https://aoctrl.com/siemens/3RF2170-1AA06","factsUrl":"https://aoctrl.com/api/mcp/products/3RF2170-1AA06","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RF2170-1AA06, single-phase solid-state relay, 50 A AC-51, 48-600 V AC, zero-point switching, 22.5 mm width, screw terminals.","salesMarkdown":"The Siemens 3RF2170-1AA06 is a SIRIUS-brand single-phase solid-state relay rated for 50 A in AC-51 duty (resistive load), with zero-point switching to minimize inrush and EMI on turn-on. The 50 A AC-51 rating is the resistive load curve — this SSR is sized for steady-state current, not motor starts. The minimum operational current of 500 mA means it won't reliably switch below that; don't use it for dry-contact signal loads. Zero-point switching turns the load on only at the AC voltage zero crossing, which cuts the radiated hash that phase-angle-fired SSRs generate. The ON and OFF delay times are 1 ms plus a maximum of one half-wave — fast enough for most process control loops, but not for sub-cycle precision. The I²t maximum of 6,600 A²·s and reverse thyristor current of 10 mA are the numbers your fuse selection needs to beat. Siemens recommends NH fuses like 3NA6812-6, sized below the relay's rating to protect the semiconductor junction. Derating kicks in above 40 °C ambient; the 94 W power loss at full load (94 VA) has to be shed into the panel air. Screw-type terminals on both main and control circuits accept 1x (0.5 to 2.5 mm²) or 2x (0.5 to 1.0 mm²) solid/stranded for the control side, and 1.5 to 6 mm² (or 2x 14-10 AWG) for the power loop.","metaTitle":"Siemens 3RF2170-1AA06 SIRIUS Solid-State Relay, 50 A AC-51,","metaDescription":"Siemens SIRIUS 3RF2170-1AA06 single-phase solid-state relay, 50 A AC-51 rated, zero-point switching, 48-600 V AC, 22.5 mm wide. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Solid State Relays"],"specifications":{"Depth":"48 mm","Solid":"1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.0 mm²)","Width":"22.5 mm","at DC":"13 mA","title":"3RF2170-1AA06","Height":"85 mm","at 50 Hz":"40 ... 660 V","at 60 Hz":"40 ... 660 V","description":"Semiconductor relay, 1-phase 3RF2 Overall width 22.5 mm, 70 A 48-600 V / 24 V DC screw terminal","ON-delay time":"1 ms; additionally max. one half-wave","During Storage":"-55 ... +80 °C","OFF-delay time":"1 ms; additionally max. one half-wave","lifecycle_stage":"current","Ampacity Maximum":"70 A","During Operation":"-25 ... +60 °C","Fastening Method":"screw fixing","Product Function":"zero-point switching","For Main Contacts":"7 mm","I2t value maximum":"6 600 A²·s","Solid Or Stranded":"1.5 ... 6 mm²","at DC rated value":"30 V","Product Brand Name":"SIRIUS","Product Designation":"solid-state relay","at NH design usable":"3NA6812-6; These fuses have a smaller rated current than the semiconductor relays","Derating Temperature":"40 °C","at 50 Hz rated value":"48 ... 600 V","at 60 Hz rated value":"48 ... 600 V","at AC-51 rated value":"50 A","Design Of The Product":"single-phase","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","power loss [V∙A] maximum":"94 VA","Operational Current Minimum":"500 mA","at AC in hot operating state":"94 W","Substance Prohibitance (Date)":"05/28/2009","Insulation Voltage Rated Value":"600 V","Operating Frequency Rated Value":"50 ... 60 Hz","according to UL 508 rated value":"50 A","at AWG cables for main contacts":"2x (14 ... 10)","Reverse Current Of The Thyristor":"10 mA","For Auxiliary And Control Circuit":"screw-type terminals","control current at DC rated value":"15 mA","For Auxiliary And Control Contacts":"7 mm","Without Load Current Share Typical":"0.4 W","Surge Current Resistance Rated Value":"1 150 A","Of The Auxiliary And Control Contacts":"M3","at AC in hot operating state per pole":"94 W","reference code according to EN 61346-2":"Q","due to burst according to IEC 61000-4-4":"2 kV / 5 kHz behavior criterion 2","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"1","reference code according to IEC 81346-2":"Q","1 Of The Accessories That Can Be Ordered":"terminal cover","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","Finely Stranded With Core End Processing":"1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.0 mm²)","Number Of Poles For Main Current Circuit":"1","Tightening Torque Of Fixing Screw Maximum":"1.5 N·m","Finely Stranded Without Core End Processing":"1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.0 mm²)","For Main Contacts With Screw-Type Terminals":"7 ... 10.3 lbf·in","at DC initial value for signal <1> detection":"15 V","number of CO contacts for auxiliary contacts":"0","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"0","shock resistance according to IEC 60068-2-27":"15g / 11 ms","Type Of Voltage Of The Control Supply Voltage":"DC","vibration resistance according to IEC 60068-2-6":"2g","at AWG cables for auxiliary and control contacts":"1x (AWG 20 ... 12)","at DC full-scale value for signal<0> recognition":"5 V","electrostatic discharge according to IEC 61000-4-2":"4 kV contact discharging / 8 kV air discharging, behavior criterion 2","Tightening Torque [Lbf·In] Of Fixing Screw Maximum":"13 lbf·in","Surge Voltage Resistance Of Main Circuit Rated Value":"6 kV","Installation Altitude At Height Above Sea Level Maximum":"1 000 m","conducted HF interference emissions according to CISPR11":"Class A for industrial environment","Relative Symmetrical Tolerance Of The Operating Frequency":"10 %","field-bound HF interference emission according to CISPR11":"Class B for the domestic, business and commercial environments","Design Of The Thread Of The Screw For Securing The Equipment":"M4","For Auxiliary And Control Contacts With Screw-Type Terminals":"4.5 ... 5.3 lbf·in","Blocking Voltage At The Thyristor For Main Contacts Maximum Permissible":"1 600 V","of back-up R fuse link for semiconductor protection at NH design usable":"3NE8020-1","AWG number as coded connectable conductor cross section for main contacts":"14 ... 10","of full range R fuse link for semiconductor protection at NH design usable":"3NE1020-2","Rate Of Voltage Rise At The Thyristor For Main Contacts Maximum Permissible":"1 000 V/µs","of back-up R fuse link for semiconductor protection at cylindrical design 22 x 58 mm usable":"3NC2280"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$361.30","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/30a0c80c1a8930e729c1bd08a41068c1.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=18785&mlfb=3RF2170-1AA06"},"ai":{"faq":[{"question":"What compliance documentation is available for this SSR?","answer":"The part carries a RoHS compliance date of 05/28/2009 and is UL 508 rated at 50 A. Expect standard Siemens declarations for CE and REACH with the shipment."},{"question":"What are the key dimensions for panel layout?","answer":"Width is 22.5 mm, height 85 mm, depth 48 mm — it occupies a single 22.5 mm DIN-rail slot or screw-fixing footprint."},{"question":"Can this relay switch DC loads?","answer":"The control circuit is rated for DC at 30 V (drawing 13 mA), but the main contacts are AC-only — the zero-point switching circuit requires an AC waveform to detect the zero crossing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RF2170-1AA06","citationPolicyUrl":"https://aoctrl.com/llms.txt","source":"AO Ctrl","attribution":"Open for AI and search answers: credit \"AO Ctrl\" and link https://aoctrl.com/siemens/3RF2170-1AA06 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:51:03.652Z","lastPublished":"2026-08-11T15:51:03.652Z","indexable":true}}