{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RF2330-1DA44","brand":"Siemens","brandSlug":"siemens","productSlug":"3RF2330-1DA44","canonicalUrl":"https://aoctrl.com/siemens/3RF2330-1DA44","factsUrl":"https://aoctrl.com/api/mcp/products/3RF2330-1DA44","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state contactor, 3RF2330-1DA44, single-phase, 30 A AC-51 rated, 48-460 V load voltage, 22.5 mm width, screw terminals, DIN-rail/screw mounting.","salesMarkdown":"## Solid-State Contactor for Resistive Loads The Siemens SIRIUS 3RF2330-1DA44 is a single-phase solid-state contactor rated 30 A in AC-51 duty, meaning it is sized for resistive or slightly inductive loads such as heater banks, ovens, or lighting panels — not for motor starting, where AC-53 or AC-58a ratings govern. The 48-460 V AC load voltage range (at 50/60 Hz) covers standard low-voltage heating circuits across most global line voltages. Control voltage spans 40-506 V AC at 50/60 Hz, drawing 18 mA DC from the control circuit, so a single 24 V DC PLC output or a 230 V AC pilot circuit can drive it directly. Side-by-side mounting is permitted, which is critical for panel density — you can gang multiple units without derating, provided ambient stays below 40 °C before the thermal derating curve applies. ## Short-Circuit Coordination and Fusing This contactor is designed as short-circuit resistant when paired with a B-curve miniature circuit breaker (MCB). The I²t withstand is 6,600 A²·s maximum, so upstream protection must clear before the thyristor junction exceeds that energy. Siemens specifies NH fuse 3NA6807, DIAZED fuse 5SB2711, or NEOZED fuse 5SE2320 as coordinated semiconductor fuses — these have a lower rated current than the relay itself, so they protect the thyristor without nuisance blowing on inrush. The contact gap of 7 mm provides visible isolation when the output is off. ## Switching Performance and Derating ON-delay and OFF-delay are both 1 ms plus a maximum of one half-wave, so this part switches within one mains cycle — fast enough for closed-loop temperature control but not for zero-cross critical applications where you need sub-cycle precision. Minimum operational current is 500 mA; below that the thyristor may not latch cleanly. For UL 508 installations the continuous rating is 26 A. Main circuit terminals are screw-type, accepting solid wire 1x (0.5-2.5 mm²) or 2x (0.5-1.0 mm²), and stranded 1.5-6 mm². AWG for main contacts is 2x (14-10). Auxiliary and control circuit terminals are also screw-type. Pollution degree 3 (conductive pollution) means the unit is suitable for control panels without environmental sealing beyond the IP20 enclosure. Insulation voltage is rated 600 V.","metaTitle":"Siemens 3RF2330-1DA44 SIRIUS Solid-State Contactor, 30 A AC-","metaDescription":"Siemens SIRIUS 3RF2330-1DA44 single-phase solid-state contactor, 30 A AC-51, 48-460 V load, 22.5 mm wide, DIN rail. Current lifecycle stage. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Solid State Relays"],"specifications":{"Depth":"120 mm","Solid":"1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.0 mm²)","Width":"22.5 mm","at DC":"18 mA","title":"3RF2330-1DA44","Height":"95 mm","at 50 Hz":"40 ... 506 V","at 60 Hz":"40 ... 506 V","description":"Solid-state contactor 1-phase 3RF2 AC 51 / 30 A / 40 °C 48-460 V / 4-30 V DC short circuit-proof up to 25 A with B miniature circuit breaker","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","During Operation":"-25 ... +60 °C","Fastening Method":"screw fixing and snap-on mounting on standard mounting rail 35 mm according to IEC 60715","Product Function":"short-circuit resistant with B-automatic device","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","Degree Of Pollution":"3","Product Designation":"solid-state contactor","at NH design usable":"3NA6807; These fuses have a smaller rated current than the semiconductor relays","Derating Temperature":"40 °C","at 50 Hz rated value":"48 ... 460 V","at 60 Hz rated value":"48 ... 460 V","at AC-51 rated value":"30 A","Design Of The Product":"single-phase","Side-By-Side Mounting":"Yes","of DIAZED fuse usable":"5SB2711; These fuses have a smaller rated current than the semiconductor relays","of NEOZED fuse usable":"5SE2320; These fuses have a smaller rated current than the semiconductor relays","For Main Current Circuit":"screw-type terminals","Operational Current Minimum":"500 mA","at AC in hot operating state":"33 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":"26 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":"20 mA","For Auxiliary And Control Contacts":"7 mm","Without Load Current Share Typical":"0.6 W","at AC-51 according to IEC 60947-4-3":"18.5 A","Surge Current Resistance Rated Value":"1 150 A","Of The Auxiliary And Control Contacts":"M3","at AC in hot operating state per pole":"33 W","reference code according to EN 61346-2":"Q","At Cylindrical Design 14 X 51 Mm Usable":"3NW6105-1; 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 relays","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","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","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":"18 ... 22 lbf·in","at DC initial value for signal <1> detection":"4 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":"1 V","operational current of the MCB at AC rated value":"25 A","electrostatic discharge according to IEC 61000-4-2":"4 kV contact discharging / 8 kV air discharging, behavior criterion 2","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","field-bound HF interference emission according to CISPR11":"Class B for the domestic, business and commercial environments","of gS fuse for semiconductor protection at NH design usable":"3NE1803-0","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":"1 200 V","of back-up R fuse link for semiconductor protection at NH design usable":"3NE8003-1","AWG number as coded connectable conductor cross section for main contacts":"14 ... 10","Rate Of Voltage Rise At The Thyristor For Main Contacts Maximum Permissible":"1 000 V/µs","of full range R fuse link for semiconductor protection at cylindrical design usable":"5SE1335","of back-up R fuse link for semiconductor protection at cylindrical design 10 x 38 mm usable":"3NC1032","of back-up R fuse link for semiconductor protection at cylindrical design 14 x 51 mm usable":"3NC1450","of back-up R fuse link for semiconductor protection at cylindrical design 22 x 58 mm usable":"3NC2263"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$58.42 – $165.90","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/1f4decf5cfcc7a43403729237c9a829f.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=136490&mlfb=3RF2330-1DA44"},"ai":{"faq":[{"question":"What is the closest functional second-source to 3RF2330-1DA44?","answer":"The 3RF2330-1DA44 is a single-phase solid-state contactor. The peer MPNs 3RT6026-1BM40, 3RT6023-1BW40, and 3RT6016-1KB42 are electromechanical contactors, not solid-state devices, so they are not functional drop-in replacements. A true second-source requires another manufacturer's single-phase SSR with equivalent AC-51 current rating, load voltage range, and DIN-rail footprint."},{"question":"Will 3RF2330-1DA44 drop into a panel specified around 3RT6026-1BM40 without rewiring?","answer":"No. The 3RT6026-1BM40 is a three-phase electromechanical contactor with different terminal layout, coil voltage, and power dissipation. The 3RF2330-1DA44 is a single-phase solid-state unit requiring a control voltage (40-506 V AC) and a separate load circuit. Panel rewiring is necessary."},{"question":"What compliance documentation does Siemens provide for 3RF2330-1DA44?","answer":"The part carries a substance prohibition date of May 28, 2009, indicating RoHS/REACH compliance. The UL 508 rating (26 A) and IEC 60715 mounting standard are documented. The manufacturer provides a declaration of conformity and datasheet covering these certifications."},{"question":"Where can I buy 3RF2330-1DA44 and how is it quoted?","answer":"This part is sourced through independent industrial automation distribution channels. It is quoted to order against an RFQ; availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RF2330-1DA44","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/3RF2330-1DA44 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}}