{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1015-2BW42","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1015-2BW42","canonicalUrl":"https://aoctrl.com/siemens/3RT1015-2BW42","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1015-2BW42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1015-2BW42, size S00, 48 V DC coil, spring-loaded terminals, IP20 front, 10 A at 24 V DC.","salesMarkdown":"Rated operational current at AC-12 (resistive) is 10 A; for motor duty, AC-2 at 400 V delivers 3 kW, and AC-4 at 400 V is rated 6.5 A. Mechanical endurance is listed at 30 000 000 cycles typical, which is high for the S00 frame — expect the electrical life to be lower under full load, but the mechanism itself will outlast most panel refreshes. Main and auxiliary/control circuits use spring-loaded terminals accepting 2x (0.25 to 2.5 mm²) solid or stranded, or 2x (24 to 14 AWG). No screwdriver torque to check — strip to 8 mm, push in. The degree of pollution is 3, so in dirty or conductive-dust environments, consider a conformal coating or a higher-IP enclosure.","metaTitle":"Siemens 3RT1015-2BW42 SIRIUS Power Contactor, 48 V DC Coil,","metaDescription":"Siemens 3RT1015-2BW42 SIRIUS power contactor, 48 V DC coil, size S00, spring-loaded terminals, 10 A at 24 V DC, IP20, current production. Sourced to order — RFQ for pricing and ava","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","Rated Value":"48 V","On The Front":"IP20","Initial Value":"0.85","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":"1.1","Size Of Contactor":"S00","Solid Or Stranded":"2x (0,25 ... 2,5 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":"spring-loaded 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","at AWG cables for main contacts":"2x (24 ... 14)","For Auxiliary And Control Circuit":"spring-loaded terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 20 A","closing power of magnet coil at DC":"3.3 W","holding power of magnet coil at DC":"3.3 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 (24 ... 14)","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 (0.25 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","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","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":"1","number of NO contacts for auxiliary contacts instantaneous contact":"0","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=212827&mlfb=3RT1015-2BW42","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1015-2BW42/alternatives.json"},"ai":{"faq":[{"question":"What is the depth of 3RT1015-2BW42?","answer":"The depth is 73 mm. That is the dimension from the DIN rail mounting surface to the front of the contactor — account for wiring space and door clearance in your enclosure layout."},{"question":"What wire sizes fit the spring-loaded terminals?","answer":"The terminals accept 2x (0.25 to 2.5 mm²) solid or stranded, or 2x (24 to 14 AWG). No ferrule required, but stripped length should be about 8 mm for a secure connection."},{"question":"Will 3RT1015-2BW42 drop into a panel specified for 3RT1015-1BB42?","answer":"Both share the S00 frame and the same 45 mm width, 60 mm height, and 73 mm depth, so the mechanical footprint is identical. The key difference is the coil: 3RT1015-2BW42 is 48 V DC, while the -1BB42 variant uses a different coil voltage. Verify the control voltage matches before swapping — if the panel supplies 48 V DC, it will drop in without rewiring."},{"question":"Where can I buy 3RT1015-2BW42 and how is it quoted?","answer":"This part is sourced to order through independent distribution. Submit an RFQ for current pricing and availability — the quote will reflect real-time market conditions and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1015-2BW42","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/3RT1015-2BW42 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}}