{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1017-1BW42","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1017-1BW42","canonicalUrl":"https://aoctrl.com/siemens/3RT1017-1BW42","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1017-1BW42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1017-1BW42 power contactor, size S00, 5.5 kW at 400 V AC-3, screw terminals, 45 mm width, IP20 front.","salesMarkdown":"This contactor is rated for motor switching at 5.5 kW in AC-3 duty at 400 V and also at 690 V, making it suitable for standard 400 V three-phase induction motors up to that power. If your application involves frequent reversing or jogging, the AC-4 figure governs contact life, not the AC-3 number. Short-circuit coordination is specified: for Type 2 coordination, use a gL/gG fuse rated 20 A; for Type 1, a 35 A fuse is required. This means the contactor will withstand a fault up to the prospective short-circuit current without welding its contacts (Type 2) or with acceptable contact damage (Type 1), provided the listed fuse is upstream. The magnet coil draws 3.3 W DC both for closing and holding — a single-wattage coil, not a two-stage economized design. This is a constant DC load on the control supply, so factor it into your 24 VDC power budget if you are ganging several contactors. Auxiliary contact ratings are given across the voltage range: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 0.3 A at 220 V DC. These are the switching capacities for the built-in auxiliary contacts — use the DC rating for pilot duty on PLC inputs or relay coils. This is the mechanical endurance without electrical load — actual electrical life will be lower and depends on the switched current and duty category. ## Mounting and integration details Side-by-side mounting is permitted with zero side clearance — the 6 mm spacing to adjacent devices is a minimum for heat dissipation, not a mandatory gap. The S00 frame is 45 mm wide, 57.5 mm tall, and 72 mm deep, so it fits standard 80 mm deep enclosures. Main circuit terminals are screw-type, accepting 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²) solid or stranded wire. AWG equivalents are 2x (20 to 16), 2x (18 to 14), and 1x 12. The dual-wire entry is useful for daisy-chaining power through the contactor without a separate terminal block. Compliance documentation is standard for Siemens industrial controls: the part carries CE marking for the European market and is designed to meet IEC/EN 60947-4-1 for contactors and motor-starters. UL and CSA listings are typical for this series, though the specific approvals for this order code should be confirmed on the nameplate or via the manufacturer's declaration of conformity.","metaTitle":"Siemens 3RT1017-1BW42 SIRIUS Power Contactor, S00, 5.5 kW","metaDescription":"Siemens SIRIUS 3RT1017-1BW42 power contactor, size S00, 5.5 kW at 400 V AC-3. Screw terminals, 45 mm wide. Current production. Sourced to order.","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","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"48 V","On The Front":"IP20","Initial Value":"0.85","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP20","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Full-scale value":"1.1","Size of contactor":"S00","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","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Single Or Multi-Stranded":"2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 mm²)","at AC-2 at 400 V rated value":"5.5 kW","at AC-4 at 400 V rated value":"8.5 A","Closing power of magnet coil at DC":"3.3 W","Holding power of magnet coil at DC":"3.3 W","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 20 A","at AWG conductors for main contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","With Type Of Coordination 1 Required":"fuse gL/gG: 35 A","Reference code acc. to DIN EN 81346-2":"Q","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","at AWG conductors for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"screw-type terminals","at ambient temperature 40 °C rated value":"22 A","Type of voltage of the control supply voltage":"DC","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","Of The Contactor With Added Electronics-Compatible 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=197767&mlfb=3RT1017-1BW42","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1017-1BW42/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional alternative to 3RT1017-1BW42?","answer":"The closest functional sibling is 3RT1017-1AP01, which shares the same S00 frame size and AC-3 motor rating but differs in coil voltage and terminal configuration. The 3RT1017-1BW42 uses a DC coil and screw terminals; the 3RT1017-1AP01 uses an AC coil. They are not drop-in replacements without verifying the control voltage and wiring method."},{"question":"What is the depth of this contactor?","answer":"The depth is 72 mm, which fits standard 80 mm deep enclosures with clearance for wiring."},{"question":"What wire sizes does the screw terminal accept?","answer":"The main circuit screw terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²) solid or stranded. AWG equivalents are 2x (20 to 16), 2x (18 to 14), and 1x 12."},{"question":"Will 3RT1017-1BW42 replace 3RT1017-1AP01 without rewiring?","answer":"Not without verifying the coil voltage. The 3RT1017-1BW42 has a DC coil; the 3RT1017-1AP01 has an AC coil. The physical footprint and mounting are identical, but the control circuit must match the coil type. If your panel supplies 24 VDC, this part is a direct fit; if it supplies 230 VAC, you need the AC-coil variant."},{"question":"What compliance documentation is available for this part?","answer":"As a Siemens SIRIUS product, it carries CE marking and is designed to IEC/EN 60947-4-1. UL and CSA listings are typical for the series but should be verified on the specific unit's nameplate or via the manufacturer's declaration of conformity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1017-1BW42","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/3RT1017-1BW42 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}}