{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1017-1AN21","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1017-1AN21","canonicalUrl":"https://aoctrl.com/siemens/3RT1017-1AN21","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1017-1AN21","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1017-1AN21, S00 power contactor, 5.5 kW at 400 V AC-3, 24 VDC coil, screw terminals, 45 mm width.","salesMarkdown":"The Siemens 3RT1017-1AN21 is a SIRIUS S00-frame power contactor rated for 5.5 kW at 400 V in AC-3 duty, meaning it handles squirrel-cage motor switching in control panels up to that load. The 24 VDC coil pulls in reliably across 0.8–1.1× rated voltage at 50 Hz and 0.85–1.1× at 60 Hz, so it stays picked during brownout conditions down to about 19.2 V. Snaps onto 35 mm DIN rail per EN 50022 or screws directly to a backplate — the 45 mm width and 57.5 mm height leave room for auxiliary contact blocks alongside. ## Ratings that matter for motor switching AC-3 rating at 400 V is 5.5 kW — that's the figure for sizing on a standard 400 V three-phase motor. At 690 V it still delivers 5.5 kW in AC-3, so it works on 690 V line supplies without derating the motor power. Auxiliary contacts are rated at 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — these are the switching limits for the control circuit, not the main poles. The 30 million mechanical cycles typical life means it outlasts most panel refreshes in normal cycling service. Main and auxiliary circuits use screw-type terminals. Solid or stranded wire: 2× (0.5–1.5 mm²), 2× (0.75–2.5 mm²), or max 2× (0.75–4 mm²). AWG equivalents: 2× (20–16), 2× (18–14), or 1× 12. The 72 mm depth includes terminal clearance — factor that into gland-plate planning. ## Coordination and compliance Type 1 coordination calls for 35 A. RoHS compliance date is July 1, 2006 — the part meets the original EU RoHS directive.","metaTitle":"Siemens 3RT1017-1AN21 SIRIUS S00 Contactor, 5.5 kW at 400 V","metaDescription":"Siemens 3RT1017-1AN21 SIRIUS S00 power contactor, 5.5 kW at 400 V AC-3, 24 VDC coil, screw terminals, IP20, current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"72 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"45 mm","Height":"57.5 mm","at 50 Hz":"0.8 ... 1.1","at 60 Hz":"0.85 ... 1.1","On The Front":"IP20","1 Rated Value":"50 Hz","2 Rated Value":"60 Hz","Of The Terminal":"IP20","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Size Of Contactor":"S00","Solid Or Stranded":"2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 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 50 Hz rated value":"220 V","at 500 V rated value":"5.5 kW","at 60 Hz rated value":"220 V","at 690 V rated value":"5.5 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"5.5 kW","at AC-4 at 400 V rated value":"8.5 A","Substance Prohibitance (Date)":"01.07.2006 00:00:00","at AWG cables for main contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 20 A","reference code acc. to IEC 81346-2":"Q","With Type Of Coordination 1 Required":"fuse gL/gG: 35 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","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 (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","apparent holding power of magnet coil at AC":"4.4 V·A","apparent pick-up power of magnet coil at AC":"27 V·A","Type Of Voltage Of The Control Supply Voltage":"AC","Required Spacing For Grounded Parts At The Side":"6 mm","Inductive Power Factor With Closing Power Of The Coil":"0.8","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.27","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":"1","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=535130&mlfb=3RT1017-1AN21","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1017-1AN21/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to the 3RT1017-1AN21?","answer":"The 3RT1017-1AP01 is the same S00 frame with identical AC-3 motor ratings but uses a 24 VAC/DC coil instead of the 24 VDC-only coil on the 1AN21. If your control voltage is pure DC, stick with the 1AN21; if you have AC control power available, the 1AP01 drops into the same footprint and terminal layout without rewiring."},{"question":"What are the key motor ratings for the 3RT1017-1AN21?","answer":"AC-3 at 400 V: 5.5 kW. AC-3 at 690 V: 5.5 kW. AC-4 at 400 V: 8.5 A. These are the figures for sizing on three-phase induction motor loads."},{"question":"What compliance documentation does this contactor carry?","answer":"RoHS compliance dated July 1, 2006. The part is designed to IEC 60947-4-1 for contactors and motor starters. Pollution degree 3 rating covers industrial environments."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1017-1AN21","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/3RT1017-1AN21 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}}