{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1015-1KB41","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1015-1KB41","canonicalUrl":"https://aoctrl.com/siemens/3RT1015-1KB41","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1015-1KB41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S00, 24 VDC coil, 3RT1015-1KB41, screw terminals, 3 kW at 400 V AC-2, snap-on DIN rail.","salesMarkdown":"Depth is 72 mm — account for that when routing wires past adjacent devices. Coil pulls 2.3 W on DC for both closing and holding — no inrush spike to stress the PLC output driving it. The integrated varistor surge suppressor handles back-EMF from the coil, so you don't need an external flyback diode across the control wiring. Main contacts accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²) — fine for motor leads up to the 3 kW rating. Auxiliary terminals take the same range. AWG equivalents: 2x 20-16, 2x 18-14, or 1x 12. ## Protection and environmental For short-circuit protection, Type 2 coordination requires a 20 A gL/gG fuse; Type 1 allows up to 35 A.","metaTitle":"Siemens 3RT1015-1KB41 SIRIUS Power Contactor, S00, 24 VDC, 3","metaDescription":"Siemens 3RT1015-1KB41 SIRIUS power contactor, size S00, 24 VDC coil, 3 kW at 400 V AC-2. Active production. Screw terminals, snap-on DIN rail. Sourced to order via 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","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":"3.5 kW","at 690 V rated value":"4 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"3 kW","at AC-4 at 400 V rated value":"6.5 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","Ambient Temperature During Operation":"-25 ... +60 °C","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":"$511.15","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=22120&mlfb=3RT1015-1KB41","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1015-1KB41/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of this contactor?","answer":"The depth is 72 mm. This is the dimension from the DIN rail mounting surface to the front of the contactor body."},{"question":"What wire sizes does the 3RT1015-1KB41 accept?","answer":"Main and auxiliary screw terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or up to 2x (0.75 to 4 mm²). AWG equivalents are 2x 20-16, 2x 18-14, or 1x 12."},{"question":"What is the AC-2 motor rating of this contactor?","answer":"At 400 V AC-2 duty, it's rated for 3 kW. AC-2 is the standard for wound-rotor motors where the contactor makes and breaks the stator current."},{"question":"What compliance documentation is available for the 3RT1015-1KB41?","answer":"The part carries a RoHS substance prohibition date of July 1, 2006, indicating RoHS compliance. It also references IEC 81346-2 with reference code Q for power switching equipment."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1015-1KB41","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/3RT1015-1KB41 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}}