{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1017-1KB41","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1017-1KB41","canonicalUrl":"https://aoctrl.com/siemens/3RT1017-1KB41","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1017-1KB41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S00 power contactor, 3RT1017-1KB41, 24 V DC coil, 45 mm width, screw-type terminals, IP20, current production.","salesMarkdown":"## SIRIUS S00 power contactor, 24 V DC coil — what fits The Siemens 3RT1017-1KB41 is a SIRIUS S00 power contactor with a 24 V DC coil, rated for motor switching up to 5.5 kW in AC-2 duty at 400 V. The 24 V DC coil pulls 2.3 W on closing and holds at the same 2.3 W — a steady-state draw that matters for control-transformer sizing and DC supply headroom in a panel. The contactor carries a 10 A rated operational current at 24 V, so it also handles resistive or light inductive loads at that voltage without derating the main poles. The 45 mm width and 57.5 mm height mean it occupies a standard S00 footprint — three units side-by-side fit a 135 mm DIN section, and side-by-side mounting is explicitly allowed, so no derating for zero-gap packing in a dense panel. ## Terminal specs and wiring reality Both main and auxiliary circuits use screw-type terminals. The main contacts accept 2x (0.5 … 1.5 mm²), 2x (0.75 … 2.5 mm²), or max 2x (0.75 … 4 mm²) solid or stranded; AWG equivalents are 2x (20 … 16), 2x (18 … 14), and 1x 12. That covers the common motor-circuit wire sizes up to 4 mm² — no need for ferrule adapters on standard builds, though a ferrule helps on the 0.5 mm² end if the wire is fine-stranded. Auxiliary terminals share the same AWG range. The contactor ships with a varistor-type surge suppressor across the coil — that handles the DC coil's flyback voltage internally, so you don't need an external free-wheel diode unless the PLC output card has a very low off-state leakage spec. For type 1 coordination (welding allowed, but no fire or shock), it's gL/gG 35 A. That's the fuse size to spec on the line side of the motor branch circuit — the contactor itself is pollution degree 3 rated, so it's fine in a typical industrial enclosure without sealed climate control.","metaTitle":"Siemens 3RT1017-1KB41 SIRIUS S00 Power Contactor, 24 V DC Co","metaDescription":"Siemens 3RT1017-1KB41 SIRIUS S00 power contactor with 24 V DC coil, 5.5 kW AC-2 at 400 V, 45 mm wide, screw terminals, IP20, current lifecycle. Quoted 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","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.7","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","Full-Scale Value":"1.25","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 500 V rated value":"5.5 kW","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","Design Of The Surge Suppressor":"with varistor","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","closing power of magnet coil at DC":"2.3 W","holding power of magnet coil at DC":"2.3 W","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)","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","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"}},"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=345961&mlfb=3RT1017-1KB41","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1017-1KB41/alternatives.json"},"ai":{"faq":[{"question":"What is the 3RT1017-1KB41 depth?","answer":"The depth is 72 mm. That's the dimension from the DIN rail mounting surface to the front of the contactor — relevant for enclosure depth planning, especially when a manual motor starter or overload relay is ganged on the output side."},{"question":"What wire sizes does 3RT1017-1KB41 accept on the main terminals?","answer":"The screw-type main terminals accept 2x (0.5 … 1.5 mm²), 2x (0.75 … 2.5 mm²), or max 2x (0.75 … 4 mm²) solid or stranded. In AWG that's 2x (20 … 16), 2x (18 … 14), and 1x 12."},{"question":"Will 3RT1017-1KB41 drop into a panel specified for 3RT1016-1BB42?","answer":"Mechanically yes — both are S00 frame size on 45 mm width, same DIN rail footprint. The main difference is the coil: 3RT1017-1KB41 is 24 V DC, while 3RT1016-1BB42 is 24 V AC. If the panel's control transformer and wiring are set up for 24 V AC, the DC coil of this part won't pull in. Verify the control voltage before swapping."},{"question":"What compliance documentation does Siemens provide for 3RT1017-1KB41?","answer":"The part carries a RoHS substance prohibition date of 01.07.2006, indicating compliance with the EU RoHS directive. As a standard SIRIUS catalog item, Siemens provides CE declaration of conformity and UL/CSA file information on request. The IEC 60947-4-1 standard applies for contactor performance ratings."},{"question":"Where can I buy 3RT1017-1KB41 and how is it quoted?","answer":"This part is sourced through independent distribution channels and quoted to order against an RFQ. Availability and current pricing are confirmed at quote time — no stock count or price is published here. Submit an RFQ for a firm quote on your quantity."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1017-1KB41","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/3RT1017-1KB41 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}}