{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1015-2MB42-0KT0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1015-2MB42-0KT0","canonicalUrl":"https://aoctrl.com/siemens/3RT1015-2MB42-0KT0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1015-2MB42-0KT0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S00, 3RT1015-2MB42-0KT0, 24 V DC coil, spring-loaded terminals, 3 kW AC-2 at 400 V, 6.5 A AC-4 at 400 V, 45 mm width.","salesMarkdown":"## SIRIUS S00 power contactor with 24 V DC coil Coil is 24 V DC, pulling 1.4 W to close and the same 1.4 W to hold, so the control transformer doesn't need to be oversized for inrush. Main contacts are spring-loaded terminals, accepting 2x (0.25 to 2.5 mm²) solid or stranded, or 2x AWG 24 to 14. That's a field-serviceable connection — no torque driver needed, just a screwdriver to push the cage open. Rated for AC-2 at 400 V at 3 kW and AC-4 at 400 V at 6.5 A. AC-12 maximum operating current is 10 A. The 24 V DC coil switches loads up to 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, 6 A at 230 V, 3 A at 400 V, and powers 3.5 kW at 500 V and 4 kW at 690 V. That covers motor switching across European standard voltages and some North American 480 V applications. The S00 frame is 45 mm wide, 60 mm tall, 73 mm deep — that's a 3-module wide footprint on the DIN rail. IP20 on the front and on the terminals, so it's a panel-interior part, not a washdown unit. Short-circuit coordination is specified: type 2 coordination requires a gL/gG fuse rated 20 A; type 1 requires 35 A. That's a long-life part for frequent cycling applications like conveyors or packaging lines.","metaTitle":"Siemens 3RT1015-2MB42-0KT0 SIRIUS Power Contactor, 24 VDC Co","metaDescription":"Siemens SIRIUS 3RT1015-2MB42-0KT0 power contactor, Size S00, 24 VDC coil, 1.4 W hold, spring-loaded terminals. AC-2 3 kW / AC-4 6.5 A at 400 V. Current production. Sourced to order","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"73 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"45 mm","Height":"60 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.82","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":"2.15","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":"3.5 kW","at 690 V rated value":"4 kW","Instantaneous Contact":"0","Side-by-side mounting":"Yes","For Main Current Circuit":"spring-loaded terminals","Single Or Multi-Stranded":"2x (0,25 ... 2,5 mm²)","at AC-2 at 400 V rated value":"3 kW","at AC-4 at 400 V rated value":"6.5 A","Closing power of magnet coil at DC":"1.4 W","Holding power of magnet coil at DC":"1.4 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 (24 ... 14)","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 (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded terminals","at ambient temperature 40 °C rated value":"18 A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type of voltage of the control supply voltage":"DC","For Short-Circuit Protection Of The Auxiliary Switch Required":"fuse gL/gG: 10 A"}},"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=74289&mlfb=3RT1015-2MB42-0KT0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1015-2MB42-0KT0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1015-2MB42-0KT0 and get a price?","answer":"We source this part to order against an RFQ. Submit a quote request through the storefront; availability and current pricing are confirmed at quote time."},{"question":"What's the closest functional alternative to 3RT1015-2MB42-0KT0?","answer":"The 3RT1016-2AP02 is a larger-frame sibling (Size S0 vs S00) with a 24 V AC/DC coil and screw terminals. It won't drop into the same DIN footprint without rewiring — the S0 frame is wider and the terminal layout differs. Stick with the S00 frame if panel space is tight."},{"question":"What is the depth of 3RT1015-2MB42-0KT0?","answer":"73 mm depth, with a width of 45 mm and height of 60 mm. That's a standard 3-module S00 footprint on 35 mm DIN rail."},{"question":"What wire sizes does the spring-loaded terminal accept?","answer":"Accepts 2x (0.25 to 2.5 mm²) solid or stranded, or 2x AWG 24 to 14. No ferrule required for the spring cage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1015-2MB42-0KT0","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/3RT1015-2MB42-0KT0 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}}