{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RA6400-2AB42","brand":"Siemens","brandSlug":"siemens","productSlug":"3RA6400-2AB42","canonicalUrl":"https://aoctrl.com/siemens/3RA6400-2AB42","factsUrl":"https://aoctrl.com/api/mcp/products/3RA6400-2AB42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS compact starter for IO-Link, direct starter design, 24 V DC, adjustable Class 10/20 trip, 0.09 kW at AC-3 400 V, 53 kA at 400 V.","salesMarkdown":"The Siemens 3RA6400-2AB42 is a SIRIUS compact starter designed as a direct starter for continuous operation per IEC 60947-6-2. The 24 V DC coil draws a maximum of 2.9 W, and the adjustable trip class (CLASS 10 or 20) lets you match the overload release to the motor start profile — Class 10 for faster starts, Class 20 for higher-inertia loads. ## IO-Link and signal integrity IO-Link is built in at COM2 (38.4 kBaud), so the starter reports load current, trip status, and thermal capacity directly to the controller without a separate analog card. Three LEDs on the front give local status — useful when the line is down and you're walking the panel. At 45 mm wide × 191 mm high × 165 mm deep, it occupies a single DIN-rail slot. Mounting position is any, but the recommended orientation is vertical on a horizontal DIN rail. The -20 to +60 °C operating range covers most unventilated enclosures, and the pollution degree 3 rating means it tolerates conductive dust and humidity typical of industrial control rooms. Shock and vibration resistance are specified: 6g for 10 ms shocks and 20 m/s² vibration up to 500 Hz — it will hold calibration on a conveyor line or a pump skid.","metaTitle":"Siemens 3RA6400-2AB42 SIRIUS Compact Starter, IO-Link","metaDescription":"Siemens 3RA6400-2AB42 SIRIUS compact starter for IO-Link, 24 V DC coil, adjustable Class 10/20 trip, 53 kA at 400 V. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Motor Starters"],"specifications":{"Depth":"165 mm","Solid":"2x (0.25 ... 1.5 mm²)","Width":"45 mm","at DC":"24 ... 24 V","title":"3RA6400-2AB42","Height":"191 mm","at 400 V":"53 kA","Trip Class":"CLASS 10 and 20 adjustable","Recommended":"vertical, on horizontal standard DIN rail","description":"SIRIUS Compact load feeder DOL starter for IO-Link 690 V 24 V DC 0.1...0.4 A IP20 Connection main circuit: Spring-type terminal Connection control circuit: Spring-type terminal","at DC maximum":"2.9 W","During Storage":"-55 ... +80 °C","number of LEDs":"3","Type Of Voltage":"DC","lifecycle_stage":"current","During Operation":"-20 ... +60 °C","During Transport":"-55 ... +80 °C","Fastening Method":"screw and snap-on mounting","IO-Link protocol":"Yes","Shock Resistance":"a=60 m/s2 (6g) with 10 ms per 3 shocks in all axes","Mounting Position":"any","at DC rated value":"24 V","Product Brand Name":"SIRIUS","Type Of Assignment":"continous operation according to IEC 60947-6-2","Degree Of Pollution":"3","Product Designation":"Compact starter for IO-Link","Vibration Resistance":"f= 4 ... 5.8 Hz, d= 15 mm; f= 5.8 ... 500 Hz, a= 20 m/s²; 10 cycles","at 400 V rated value":"90 W","at 480 V rated value":"0.4 A","at 500 V rated value":"3 kA","at 600 V rated value":"0.4 A","at 690 V rated value":"3 kA","AS-Interface protocol":"No","Design Of The Product":"direct starter","IO-Link transfer rate":"COM2 (38,4 kBaud)","For Main Current Circuit":"spring-loaded terminals","at AC at 400 V rated value":"0.4 A","NO-Load Switching Frequency":"3 600 1/h","Of The Main Contacts Typical":"10 000 000","at AC in hot operating state":"0.01 W","at AC-3 at 400 V rated value":"0.09 kW","Of Auxiliary Contacts Typical":"10 000 000","Substance Prohibitance (Date)":"05/01/2012","Insulation Voltage Rated Value":"690 V","at DC-13 at 6 A at 24 V typical":"30 000","at AC-15 at 6 A at 230 V typical":"200 000","degree of protection NEMA rating":"other","For Auxiliary And Control Circuit":"spring-loaded terminals","Of The Signaling Contacts Typical":"10 000 000","Design Of Short-Circuit Protection":"electromagnetic","Product Extension Auxiliary Switch":"Yes","Product Function Bus Communication":"Yes","Relative Humidity During Operation":"10 ... 90 %","Without Load Current Share Typical":"2.9 W","Surge Voltage Resistance Rated Value":"6 000 V","at AC in hot operating state per pole":"0.01 W","for AWG cables for auxiliary contacts":"2x (24 ... 16)","due to burst according to IEC 61000-4-4":"4 kV main circuits, 2 kV auxiliary circuits, 2 kV IO-Link, 2 kV limit switches, 2 kV line hand-held device","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Formula For Making Capacity Limit Current":"120 x Ie","Product Function Short Circuit Protection":"Yes","Supply voltage required Auxiliary voltage":"Yes","Finely Stranded Without Core End Processing":"2x (0.25 ... 1.5 mm²)","Formula For Limit Current Breaking Capacity":"100 x Ie","at AC-41 according to IEC 60947-6-2 maximum":"750 1/h","at AC-43 according to IEC 60947-6-2 maximum":"250 1/h","with high demand rate according to SN 31920":"50 %","number of NC contacts for auxiliary contacts":"0","number of NO contacts for auxiliary contacts":"0","operating voltage at AC-3 rated value maximum":"690 V","electrostatic discharge according to IEC 61000-4-2":"8 kV","Type Of Voltage Supply Via Input/Output Link Master":"No","Product Component Removable Terminal For Main Circuit":"Yes","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","product function control circuit interface with IO link":"Yes","conducted HF interference emissions according to CISPR11":"150 kHz ... 30 MHz Class A","field-bound HF interference emission according to CISPR11":"30 ... 1000 MHz Class A","operational current of auxiliary contacts at AC-12 maximum":"10 A","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","Product Function Control Circuit Interface To Parallel Wiring":"No","Of The Address Range Of The Inputs With Cyclical Transfer Total":"2 byte","Of The Address Range Of The Outputs With Cyclical Transfer Total":"2 byte","Display Version As Status Display Of The Input/Output Link Device":"green/red dual LED","point-to-point cycle time between master and IO-Link device minimum":"2.5 ms","Product Component Removable Terminal For Auxiliary And Control Circuit":"Yes","Adjustable Current Response Value Current Of The Current-Dependent Overload Release":"0.1 ... 0.4 A","number of NO contacts of instantaneous short-circuit trip unit for signaling contact":"0","number of CO contacts of the current-dependent overload release for signaling contact":"0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.aoctrl.com/173f604ffa1ceacfb823d1190b6d541e.pdf","sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=315647&mlfb=3RA6400-2AB42"},"ai":{"faq":[{"question":"What is the difference between 3RA6400-2AB42 and 3RA6400-2AB41?","answer":"The order code suffix indicates a specific variant within the SIRIUS compact starter family. The 3RA6400-2AB42 is a direct starter with IO-Link, 24 V DC coil, and adjustable Class 10/20 trip. The sibling 3RA6400-2AB41 shares the same form factor and IO-Link but may differ in coil voltage or trip settings — verify the full order code against your BOM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RA6400-2AB42","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/3RA6400-2AB42 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:47:38.189Z","lastPublished":"2026-07-22T19:47:38.189Z","indexable":true}}