{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1017-2KB42-0LA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1017-2KB42-0LA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1017-2KB42-0LA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1017-2KB42-0LA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S00 power contactor, 3RT1017-2KB42-0LA0, 24 VDC coil, spring-loaded terminals, 5.5 kW rated power at 400 V AC-3, IP20 finger-safe enclosure.","salesMarkdown":"For AC-4 (plugging/reversing/inching) at 400 V, the rated operational current drops to 8.5 A, reflecting the heavier switching duty. That's the number to check if your application does frequent reversing or jogging. Coil switching capacity is given at multiple DC voltages: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V. These are the auxiliary contact ratings for the DC control circuit — useful when you're feeding the coil from a PLC output or a remote pushbutton station. The built-in varistor surge suppressor handles the inductive kick on coil dropout, so you don't need an external flyback diode. Both main current circuit and auxiliary/control circuit use spring-loaded terminals — no screw torque to check, no vibration loosening. They accept 2x (0.25 to 2.5 mm²) solid or stranded, or 2x (24 to 14 AWG). Strip length is standard 8–10 mm for spring-cage. The S00 frame terminals are laid out for straightforward panel wiring; the 45 mm width leaves room for finger duct alongside. ## Protection coordination These are the values to hand to the panel builder for the short-circuit protection schedule. The contactor itself has a mechanical life of 30 million operations typical — not a wear item in normal cycling.","metaTitle":"Siemens 3RT1017-2KB42-0LA0 SIRIUS S00 Power Contactor, 24 VD","metaDescription":"Siemens SIRIUS S00 power contactor 3RT1017-2KB42-0LA0, 24 VDC coil, spring-loaded terminals, 5.5 kW at 400 V AC-3. Current production. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"123 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"60 mm","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.7","Of The Terminal":"IP20","lifecycle_stage":"current","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Full-Scale Value":"1.25","Size Of Contactor":"S00","Solid Or Stranded":"2x (0,25 ... 2,5 mm²)","Product Brand Name":"SIRIUS","Degree Of Pollution":"3","Product Designation":"power contactor","at 24 V rated value":"10 A","at 60 V rated value":"2 A","Of Contactor Typical":"30 000 000","at 110 V rated value":"1 A","at 220 V rated value":"0.3 A","at 230 V rated value":"6 A","at 400 V rated value":"3 A","at 500 V rated value":"5.5 kW","at 690 V rated value":"5.5 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"spring-loaded terminals","at AC-2 at 400 V rated value":"5.5 kW","at AC-4 at 400 V rated value":"8.5 A","Design Of The Surge Suppressor":"with varistor","at AWG cables for main contacts":"2x (24 ... 14)","For Auxiliary And Control Circuit":"spring-loaded terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 20 A","closing power of magnet coil at DC":"11 W","holding power of magnet coil at DC":"4 W","reference code acc. to IEC 81346-2":"Q","Ambient Temperature During Operation":"-40 ... +70 °C","With Type Of Coordination 1 Required":"fuse gL/gG: 35 A","at AWG cables for auxiliary contacts":"2x (24 ... 14)","operational current at AC-12 maximum":"10 A","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type Of Voltage Of The Control Supply Voltage":"DC","Required Spacing For Grounded Parts At The Side":"6 mm","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Of The Contactor With Added Auxiliary Switch Block Typical":"10 000 000","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=517582&mlfb=3RT1017-2KB42-0LA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1017-2KB42-0LA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3RT1017-2KB42-0LA0?","answer":"Motor rating is 5.5 kW at 400 V AC-3. Coil is 24 VDC, 11 W pull-in / 4 W hold. Spring-loaded terminals accept 2x 0.25–2.5 mm². Ambient range -40 to +70 °C. IP20 finger-safe."},{"question":"Will this drop into a panel wired for 3RT1016-1BB42?","answer":"The 3RT1017-2KB42-0LA0 shares the same S00 frame size (45 mm wide, DIN-rail mount) and spring-terminal family, so panel cutouts and DIN rail position are identical. The main difference is the coil voltage — 24 VDC here versus whatever the 1BB42 variant carried. Check the coil rating on your existing BOM before swapping."},{"question":"Where can I buy 3RT1017-2KB42-0LA0 and how is it quoted?","answer":"This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock figures or lead-time numbers are published here."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1017-2KB42-0LA0","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/3RT1017-2KB42-0LA0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-09-02T08:15:54.622Z","lastPublished":"2026-09-02T08:15:54.622Z","indexable":true}}