{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RF2430-1AB45","brand":"Siemens","brandSlug":"siemens","productSlug":"3RF2430-1AB45","canonicalUrl":"https://aoctrl.com/siemens/3RF2430-1AB45","factsUrl":"https://aoctrl.com/api/mcp/products/3RF2430-1AB45","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS solid-state contactor, 3RF2430-1AB45, two-phase controlled, 30 A AC-51, 48-600 V AC, zero-point switching, screw terminals, DIN rail mount.","salesMarkdown":"The Siemens 3RF2430-1AB45 is a SIRIUS solid-state contactor designed for zero-point switching of resistive and lightly inductive loads in AC circuits. It is a two-phase controlled device, meaning it switches two of the three phases in a three-phase system, which is standard for many heater and lighting applications where the third phase can be left connected or switched separately. Rated at 30 A in AC-51 duty (resistive load category per IEC 60947-4-3), it handles a supply voltage range of 48 to 600 V AC at 50/60 Hz. The UL 508 rating is 22 A, which is the value to use for North American panel designs. The minimum operational current is 500 mA, so it is not suited for very low-current signal switching below that threshold. The I²t value is 7200 A²s, which defines the short-time withstand capability for fuse coordination. Dimensions are 74.5 mm wide, 100 mm high, and 119.5 mm deep, which is a compact footprint for a 30 A solid-state contactor. Side-by-side mounting is permitted, which helps density in a control panel. Main circuit terminals accept 1.5 to 6 mm² solid or stranded wire (AWG 14-10 for two conductors). Control circuit terminals accept 0.5 to 2.5 mm² solid (1x) or 0.5 to 1.0 mm² (2x). All terminals are screw-type, so a screwdriver is needed for termination. ## Electrical characteristics and thermal management Power dissipation is 61 W in the hot operating state (at rated AC current), and standby power is 0.9 W without load. Control current at DC rated value is 30 mA (22 mA at DC). The ON-delay time is 1 ms plus a maximum of one half-wave, which is typical for zero-point switching — the load turns on at the next zero crossing after the control signal is applied.","metaTitle":"Siemens 3RF2430-1AB45 SIRIUS Solid-State Contactor, 30 A AC-","metaDescription":"Siemens SIRIUS 3RF2430-1AB45 solid-state contactor, 30 A AC-51, 48-600 V AC, zero-point switching, two-phase controlled, current lifecycle, DIN rail mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Solid State Relays"],"specifications":{"Depth":"119.5 mm","Solid":"1x (0.5 ... 2.5 mm²), 2x (0.5 ... 1.0 mm²)","Width":"74.5 mm","at DC":"22 mA","title":"3RF2430-1AB45","Height":"100 mm","at 50 Hz":"40 ... 660 V","at 60 Hz":"40 ... 660 V","description":"Solid-state contactor 3-phase 3RF2 AC 51 / 30 A / 40 °C 48-600 V / 4-30 V DC 2-phase controlled screw terminal Blocking voltage 1200 V","up to 460 V":"3NA3812","ON-delay time":"1 ms; additionally max. one half-wave","During Storage":"-55 ... +80 °C","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":"zero-point switching","For Main Contacts":"7 mm","I2t value maximum":"7 200 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","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":"30 A","Design Of The Product":"two-phase controlled","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","Operational Current Minimum":"500 mA","at AC in hot operating state":"61 W","Substance Prohibitance (Date)":"07/01/2006","Insulation Voltage Rated Value":"600 V","Operating Frequency Rated Value":"50 ... 60 Hz","according to UL 508 rated value":"22 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":"30 mA","For Auxiliary And Control Contacts":"7 mm","Without Load Current Share Typical":"0.9 W","at AC-51 according to IEC 60947-4-3":"22 A","Surge Current Resistance Rated Value":"1 200 A","Symmetrical Line Frequency Tolerance":"5 Hz","Of The Auxiliary And Control Contacts":"M3","at AC in hot operating state per pole":"20.33 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":"2","reference code according to IEC 81346-2":"Q","2 Of The Accessories That Can Be Ordered":"converter","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":"3","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","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","Relative Symmetrical Tolerance Of The Operating Frequency":"10 %","field-bound HF interference emission according to CISPR11":"Class A for industrial environment","Design Of The Thread Of The Screw For Securing The Equipment":"M4","For Auxiliary And Control Contacts With Screw-Type Terminals":"7.5 ... 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","of full range R fuse link for semiconductor protection at NH design usable":"3NE1803-0","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; Maximum operating voltage 400 V!","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":"3NC2280"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$277.81","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/ab47ada5e42ba601468420afd691ec5c.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=529250&mlfb=3RF2430-1AB45"},"ai":{"faq":[{"question":"What are the key ratings I need to know for panel design?","answer":"The AC-51 rated current is 30 A, the UL 508 rating is 22 A, and the operating voltage range is 48-600 V AC at 50/60 Hz. The minimum load current is 500 mA. Power dissipation is 61 W at full load, with derating starting at 40 °C."},{"question":"What compliance documentation does this part have?","answer":"It is RoHS compliant with a substance prohibition date of July 1, 2006. The insulation voltage is rated 600 V, and pollution degree is 3. It carries UL 508 rating (22 A) for North American acceptance."},{"question":"Can this be mounted side-by-side with other contactors?","answer":"Yes, side-by-side mounting is permitted, which allows dense panel layouts. The width is 74.5 mm, and it mounts on standard 35 mm DIN rail or by screw fixing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RF2430-1AB45","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/3RF2430-1AB45 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}}