{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-3BB48-0PB0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-3BB48-0PB0","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-3BB48-0PB0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3BB48-0PB0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1026-3BB48-0PB0, S0 frame, 24 VDC coil, screw terminals, 11 kW AC-2 at 400 V, IP20 front.","salesMarkdown":"It mounts via screw or snap-on onto 35 mm DIN rail per EN 50022, fitting the standard panel footprint at 55 mm wide, 85 mm tall, and 101 mm deep. Rated for 11 kW at AC-2 duty on 400 V (the standard motor-switching category for slip-ring motors and moderate overloads), and 15.5 A at AC-4 at 400 V for reversing or inching applications where the contactor makes and breaks full load current. The DC coil draws 5.4 W both during pickup and holding, so the control transformer and wiring need only size for that steady draw — no inrush spike to design around. The IP20 front enclosure protects against finger contact in the panel; the terminals themselves are IP00, so live parts are exposed during wiring — standard for panel-mount contactors. ## Switching Capacity and Coordination For DC load switching, the contactor handles 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V — useful for breaking DC control circuits or small DC motor loads within those limits. On AC loads, the AC-1 rating (resistive) is 10 A maximum. Short-circuit coordination: with Type 2 assignment (minimal damage to the contactor after a fault), use a gL/gG fuse rated 35 A. The contactor has one normally-open instantaneous main contact. Screw terminals on the main circuit accept 2x (0.25 to 2.5 mm²) solid, 2x (1 to 2.5 mm²) or 2x (2.5 to 6 mm²) stranded, and up to 2x 10 mm² maximum. AWG equivalents: 2x (16 to 12), 2x (14 to 10), and 1x 8. ## Environmental and Installation Rated for installation altitudes up to 2,000 m without derating.","metaTitle":"Siemens 3RT1026-3BB48-0PB0 SIRIUS Power Contactor, 24 VDC, S","metaDescription":"Siemens 3RT1026-3BB48-0PB0 SIRIUS power contactor, 24 VDC coil, S0 frame, 11 kW AC-2 at 400 V. Current lifecycle stage. Quoted to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"101 mm","Solid":"2x (0.25 ... 2.5 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":"11 kW","at 690 V rated value":"11 kW","Instantaneous Contact":"1","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":"11 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: 35 A","at AWG conductors for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","With Type Of Coordination 1 Required":"fuse gL/gG: 100 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 (0.25 ... 1.5 mm²)","Number of poles for main current circuit":"3","at AWG conductors for auxiliary contacts":"2x (24 ... 14)","Contact reliability of auxiliary contacts":"1 faulty switching per 100 million (17 V, 1 mA)","For Auxiliary And Control Current Circuit":"spring-loaded terminals","at ambient temperature 40 °C rated value":"40 A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","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=359402&mlfb=3RT1026-3BB48-0PB0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-3BB48-0PB0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3RT1026-3BB48-0PB0?","answer":"It is a 24 V DC coil power contactor rated 11 kW at AC-2 / 400 V, 15.5 A at AC-4 / 400 V, with a mechanical life of 10 million operations. The S0 frame measures 55 x 85 x 101 mm and mounts on 35 mm DIN rail."},{"question":"Will 3RT1026-3BB48-0PB0 drop into a panel specified around 3RT1023-1AL20?","answer":"Both are S0 frame contactors on the same DIN rail footprint, so the mechanical fit is identical. The key difference is the coil voltage — 3RT1026-3BB48-0PB0 uses 24 V DC, while 3RT1023-1AL20 uses a different coil voltage. Verify your control circuit voltage before swapping."},{"question":"Where can I buy 3RT1026-3BB48-0PB0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"What compliance documentation is available for this contactor?","answer":"The contactor carries reference code Q per DIN EN 81346-2 and is designed to IEC/EN standards for industrial control equipment. Specific compliance documentation (RoHS, REACH, UL file) is typically included with the shipment or available from Siemens upon request."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-3BB48-0PB0","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/3RT1026-3BB48-0PB0 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}}