{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1015-1VB41","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1015-1VB41","canonicalUrl":"https://aoctrl.com/siemens/3RT1015-1VB41","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1015-1VB41","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, Size S00, 3RT1015-1VB41, 24 V DC coil with integrated diode surge suppression, screw-type terminals, 45 mm width, IP20 finger-safe protection.","salesMarkdown":"## Siemens 3RT1015-1VB41 — SIRIUS Power Contactor, 24 V DC Coil, Size S00 It carries a 24 V DC magnet coil with an integrated diode surge suppressor — the holding power is a steady 1.4 W, so the coil driver sees a constant load whether the contactor is pulling in or sealed. Rated for AC-3 duty at 400 V, it handles 3 kW motor loads (6.5 A at AC-4 for reversing or plugging duty). The main contacts are rated 10 A at 24 V for DC switching, 6 A at 230 V AC, and 3 A at 400 V AC. For resistive AC-1 loads the maximum operating current is 10 A. Screw-type terminals accept 2x (0.5…1.5 mm²) solid or stranded, up to 2x (0.75…4 mm²) max. ## Switching Ratings and Coordination The 3RT1015-1VB41 covers a broad voltage range across AC and DC loads. At 60 V DC it switches 2 A; at 110 V DC, 1 A; at 220 V DC, 0.3 A. For AC motor loads at 500 V it is rated 3.5 kW, and at 690 V, 4 kW. The DC ratings are particularly useful for switching solenoids or DC brake coils in the same panel. Fuse coordination is specified: Type 2 coordination requires a gL/gG 20 A fuse; Type 1 coordination allows a 35 A gL/gG fuse. This matters when the contactor is part of a coordinated starter assembly — the fuse size determines whether the contactor survives a short circuit. The closest functional peer within the same Size S00 frame is the 3RT1015-1BB42, which differs primarily in coil voltage (24 V AC, 50/60 Hz) and lacks the integrated diode suppression. The 3RT1015-1VB41 with its 24 V DC coil and built-in diode is the correct choice for DC control systems; swapping to the AC coil variant would require adding an external rectifier or changing the control transformer. The 72 mm depth leaves clearance for wiring ducts and terminal blocks behind the contactor. Screw terminals accept AWG 20–14 solid or stranded (2x conductors), with a maximum of 1x AWG 12 per terminal. The integrated diode surge suppressor means no external flyback diode is needed across the coil — saves one component and one wiring step per contactor. Verify polarity: the diode is reverse-biased when the coil is energized, so incorrect polarity will short the power supply through the diode.","metaTitle":"Siemens 3RT1015-1VB41 SIRIUS Power Contactor, 24 V DC Coil,","metaDescription":"Siemens 3RT1015-1VB41 SIRIUS power contactor, Size S00, 24 V DC coil with integrated diode suppression, 45 mm wide, screw terminals, IP20. Active production. Sourced to order.","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 diode","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":"$61.72","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=296676&mlfb=3RT1015-1VB41","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1015-1VB41/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RT1015-1VB41?","answer":"Pricing and availability are confirmed at quote time against an RFQ. Submit a request through the storefront for a current quote — the part is sourced through independent distribution channels."},{"question":"What is the closest functional second-source for 3RT1015-1VB41?","answer":"The closest peer within the same Size S00 frame is the 3RT1015-1BB42, which uses a 24 V AC coil instead of DC and lacks the integrated diode suppression. The 3RT1015-1VB41 is the correct choice for DC control systems; the AC variant would require an external rectifier."},{"question":"What is the depth of 3RT1015-1VB41?","answer":"The depth is 72 mm. This is the dimension from the DIN rail mounting surface to the front of the contactor, including the terminals."},{"question":"What wire sizes does the 3RT1015-1VB41 accept?","answer":"The screw terminals accept 2x (0.5…1.5 mm²) solid or stranded, 2x (0.75…2.5 mm²), and up to 2x (0.75…4 mm²) maximum. For AWG: 2x (20…16), 2x (18…14), and 1x 12."},{"question":"Will 3RT1015-1VB41 drop into a panel specified around 3RT1015-1BB42?","answer":"Mechanically yes — both are Size S00 with the same 45 mm width, DIN rail mounting, and screw terminal layout. The difference is the coil: the 1VB41 is 24 V DC with integrated diode, while the 1BB42 is 24 V AC. The DC coil will not operate on an AC control supply without a rectifier."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1015-1VB41","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/3RT1015-1VB41 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}}