{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1015-1WB41","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1015-1WB41","canonicalUrl":"https://aoctrl.com/siemens/3RT1015-1WB41","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1015-1WB41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1015-1WB41 power contactor, size S00, 24 V DC coil with integrated varistor, 10 A rated operational current at 24 V, screw-type terminals, snap-on mounting on 35 mm DIN rail.","salesMarkdown":"The coil draws 1.4 W both on pickup and hold, which is typical for this frame size — steady-state dissipation stays low enough that you can group several contactors on a DIN rail without worrying about heat buildup in the enclosure. The headline number for sourcing is the rated operational current: 10 A at 24 V (AC-12 duty, resistive loads), 6 A at 230 V, and 3 A at 400 V. For motor switching, the AC-3 rating at 400 V is 3 kW — that's the figure that decides whether this contactor handles a standard 3-phase motor on a 400 V line. If you're switching a 4-pole motor under 3 kW, this fits; above that, step up to the next frame size. If your application does frequent plugging or reversing, use the AC-4 figure, not the AC-3 one. The 6.5 A AC-4 limit means this contactor handles about 2.2 kW of motor load under severe switching duty. For DC switching, the ratings drop fast: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V. That's typical for a contactor designed primarily for AC motor duty — don't use it for high-current DC loads above 60 V without checking the curve. The S00 footprint is 45 mm wide, 57.5 mm tall, 72 mm deep — that's the same width as a single miniature circuit breaker, so it packs tight on a rail. Main circuit terminals are screw-type, accepting 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or up to 2x 4 mm² stranded. AWG: 2x 20–16, 2x 18–14, or 1x 12. ## Where it lives in the panel This is a dry-panel contactor: mount it inside an enclosure rated for the environment, not exposed outdoors or in washdown zones. Mechanical endurance: 30 million cycles typical. Electrical life depends on switching current and voltage. Coil pickup threshold is 0.85 x nominal. ## Short-circuit coordination That's the standard recommendation for the S00 frame — if your panel design calls for Type 2, spec the 20 A fuse upstream. It's a standard SIRIUS catalog item, broadly stocked across distribution. For BOM-line commitments, the key fit check is the 24 V DC coil voltage and the S00 frame size — if those match your panel layout, the rest of the ratings (10 A AC-12, 3 kW AC-3 at 400 V) are well within typical light-duty motor and resistive load ranges.","metaTitle":"Siemens 3RT1015-1WB41 SIRIUS Power Contactor, 24 VDC coil, S","metaDescription":"Siemens 3RT1015-1WB41 SIRIUS power contactor, size S00, 24 VDC coil with varistor, 10 A at 24 V, screw terminals, snap-on DIN rail mount. Active production.","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":"24 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":"1.85","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":"1","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","Design of the surge suppressor":"with varistor","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 (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","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=492184&mlfb=3RT1015-1WB41","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1015-1WB41/alternatives.json"},"ai":{"faq":[{"question":"What's the closest functional alternative — 3RT1015-1BB42?","answer":"The 3RT1015-1BB42 is the same S00 frame contactor but with a 24 V AC coil instead of DC. The mechanical footprint, terminal layout, and main contact ratings are identical. The swap is straightforward if your control circuit can supply 24 V AC instead of DC — just account for the different coil suppression (the -1BB42 typically has a built-in RC snubber for AC, while this -1WB41 has a varistor for DC). No rewiring of the main power circuit needed."},{"question":"What wire sizes does the screw terminal accept?","answer":"Main circuit terminals accept 2x 0.5–1.5 mm², 2x 0.75–2.5 mm², or up to 2x 4 mm² stranded. AWG equivalents: 2x 20–16, 2x 18–14, or 1x 12."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1015-1WB41","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/3RT1015-1WB41 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}}