{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1015-1BF42","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1015-1BF42","canonicalUrl":"https://aoctrl.com/siemens/3RT1015-1BF42","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1015-1BF42","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1015-1BF42, S00 frame size, 110 VAC coil, screw-type terminals, IP20, 45 mm width.","salesMarkdown":"## SIRIUS 3RT1015-1BF42 — S00 Power Contactor, 110 VAC Coil Rated for AC-2 duty at 400 V delivering 3 kW and AC-4 at 400 V at 6.5 A, this contactor handles both starting and inching/plugging duty cycles. The contact ratings span from 10 A at 24 V through 6 A at 230 V and 3 A at 400 V, with a 4 kW rating at 690 V — covering common low-voltage motor and heater loads. ## Mounting and Terminal Integration The 45 mm wide, 57.5 mm high, 72 mm deep envelope fits the S00 footprint. Screw-type terminals on the main current circuit accept solid or stranded conductors: 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or max 2x 0.75–4 mm² (AWG equivalents: 2x 20–16, 2x 18–14, 1x 12). Pollution degree 3 classification indicates it tolerates conductive pollution typical of industrial control rooms. ## Short-Circuit Coordination and Protection These values guide the selection of branch-circuit protection when the contactor is part of a motor starter or feeder. The contactor carries no built-in instantaneous contact (0 auxiliary contacts), so any auxiliary signaling or interlocking requires a separate auxiliary contact block added to the S00 frame.","metaTitle":"Siemens 3RT1015-1BF42 SIRIUS Power Contactor, 110 VAC Coil,","metaDescription":"Siemens 3RT1015-1BF42 SIRIUS power contactor, S00 frame, 110 VAC coil, screw terminals, IP20, current production. Available to order. Request RFQ for pricing and availability.","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":"110 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":"3.5 kW","at 690 V rated value":"4 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":"3 kW","at AC-4 at 400 V rated value":"6.5 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":"18 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=194749&mlfb=3RT1015-1BF42","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1015-1BF42/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1015-1BF42 and how do I get a price?","answer":"This part is sourced and quoted to order against an RFQ through our independent distribution network. Submit an RFQ for current pricing and availability — stock levels and lead times are confirmed at quote time."},{"question":"What is 3RT1015-1BF42's listed depth?","answer":"The depth is 72 mm, which is standard for the S00 frame size and fits within typical DIN-rail enclosure depths."},{"question":"What wire sizes does the 3RT1015-1BF42 accept?","answer":"The screw terminals accept 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or max 2x 0.75–4 mm² solid or stranded conductors (AWG 2x 20–16, 2x 18–14, 1x 12)."},{"question":"Will 3RT1015-1BF42 drop into a panel specified around 3RT1015-1BB42 without rewiring?","answer":"Both share the S00 frame and screw-terminal format, so the mechanical fit and mounting are identical. The key difference is the coil voltage: 3RT1015-1BF42 uses 110 VAC, while the 1BB42 variant uses a different coil voltage. Verify the control circuit voltage before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1015-1BF42","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/3RT1015-1BF42 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}}