{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1025-1BB48-0QA2","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1025-1BB48-0QA2","canonicalUrl":"https://aoctrl.com/siemens/3RT1025-1BB48-0QA2","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1BB48-0QA2","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1025-1BB48-0QA2 power contactor, size S0, 3-pole, 24 VDC coil, screw terminals, 150 mm depth, 55 mm width, 85 mm height.","salesMarkdown":"## SIRIUS S0 power contactor for motor and resistive loads The contactor is rated for AC-3 motor switching: 10 kW at 500 V and 11 kW at 690 V, with an AC-4 rated operational current of 15.5 A at 400 V for reversing or inching duty. Type 1 coordination allows a 63 A gL/gG fuse, which permits the contactor to be replaced after a fault. ## Termination and wiring Main circuit terminals accept solid conductors: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), max 2x (0.75–4 mm²). For stranded or ferruled wire: 2x (1–2.5 mm²), 2x (2.5–6 mm²), max 2x 10 mm². AWG equivalents: 2x (16–12), 2x (14–10), 1x 8. The auxiliary contact block (3RT1025-1BB48-0QA2 includes one instantaneous N/O + N/C) has its own terminal ratings.","metaTitle":"Siemens 3RT1025-1BB48-0QA2 SIRIUS Power Contactor, 24 VDC, 3","metaDescription":"Siemens SIRIUS 3RT1025-1BB48-0QA2 power contactor, 24 VDC coil, 3-pole, S0 size. Rated 10 A at 24 V, 11 kW at 690 V. Active lifecycle. Available to order. Request RFQ for pricing.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"150 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"55 mm","Height":"85 mm","Maximum":"2 000 m","At The Side":"6 mm","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.8","Mounting type":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Full-scale value":"1.1","Size of contactor":"S0","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":"10 000 000","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":"10 kW","at 690 V rated value":"11 kW","Instantaneous Contact":"3","Side-by-side mounting":"Yes","For Main Current Circuit":"screw-type terminals","Single Or Multi-Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","at AC-2 at 400 V rated value":"7.5 kW","at AC-4 at 400 V rated value":"15.5 A","Closing power of magnet coil at DC":"5.4 W","Holding power of magnet coil at DC":"5.4 W","Operating current at AC-12 maximum":"10 A","With Type Of Assignment 2 Required":"fuse gL/gG: 25 A","at AWG conductors for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","With Type Of Coordination 1 Required":"fuse gL/gG: 63 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":"40 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=530465&mlfb=3RT1025-1BB48-0QA2","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1025-1BB48-0QA2/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1025-1BB48-0QA2 and get a price?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Submit a request for quote; availability and current pricing are confirmed at quote time."},{"question":"What is the depth of 3RT1025-1BB48-0QA2?","answer":"The depth is 150 mm, with a width of 55 mm and height of 85 mm."},{"question":"What wire sizes does the 3RT1025-1BB48-0QA2 accept?","answer":"Solid conductors: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), max 2x (0.75–4 mm²). Stranded: 2x (1–2.5 mm²), 2x (2.5–6 mm²), max 2x 10 mm². AWG: 2x (16–12), 2x (14–10), 1x 8."},{"question":"Will 3RT1025-1BB48-0QA2 drop into a panel specified for 3RT1023-1AL20?","answer":"Both are SIRIUS S0-size contactors with the same 55 mm width and DIN-rail mounting, so the footprint is identical. The key difference is the coil voltage: 3RT1025-1BB48-0QA2 uses 24 VDC; verify the 3RT1023-1AL20's coil voltage before substituting. Terminal layouts and auxiliary contact configurations may also differ — check the specific wiring diagram."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1025-1BB48-0QA2","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/3RT1025-1BB48-0QA2 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}}