{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1026-1BM40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1026-1BM40","canonicalUrl":"https://aoctrl.com/siemens/3RT1026-1BM40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1BM40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S0 power contactor, 3RT1026-1BM40, 220 VAC coil, 11 kW AC-2 at 400 V, screw terminals, snap-on DIN rail mount.","salesMarkdown":"## Coil and Contact Ratings The 3RT1026-1BM40: The magnet coil draws 5.4 W DC for both closing and holding, so the control transformer can be sized for a steady load. Contact ratings span the voltage range: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, 6 A at 230 V, 3 A at 400 V, and 11 kW at both 500 V and 690 V. The auxiliary contact circuit is rated for a maximum operational current of 10 A in AC-12 duty. ## Fault Coordination and Environmental Limits Main circuit terminals accept solid or stranded conductors: 2x (1 to 2.5 mm²), 2x (2.5 to 6 mm²), or max 2x 10 mm². Auxiliary terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or max 2x (0.75 to 4 mm²). AWG equivalents are provided for both. Side-by-side mounting is permitted, so multiple contactors can pack tightly on the rail.","metaTitle":"Siemens 3RT1026-1BM40 SIRIUS S0 Power Contactor, 220 VAC Coi","metaDescription":"Siemens 3RT1026-1BM40 SIRIUS S0 power contactor, 220 VAC coil, 11 kW AC-2 at 400 V, 15.5 A AC-4. Active production. DIN rail mount. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"101 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"45 mm","Height":"85 mm","Rated Value":"220 V","On The Front":"IP20","Initial Value":"0.8","Of The Terminal":"IP00","lifecycle_stage":"current","During Operation":"-25 ... +60 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Full-Scale Value":"1.1","Size Of Contactor":"S0","Solid Or Stranded":"2x (1 ... 2,5 mm²), 2x (2,5 ... 6 mm²), max. 2x 10 mm²","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","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"11 kW","at AC-4 at 400 V rated value":"15.5 A","Substance Prohibitance (Date)":"01.07.2006 00:00:00","at AWG cables for main contacts":"2x (16 ... 12), 2x (14 ... 10), 1x 8","For Auxiliary And Control Circuit":"screw-type terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 35 A","closing power of magnet coil at DC":"5.4 W","holding power of magnet coil at DC":"5.4 W","reference code acc. to IEC 81346-2":"Q","With Type Of Coordination 1 Required":"fuse gL/gG: 100 A","at AWG cables for auxiliary contacts":"2x (20 ... 16), 2x (18 ... 14), 1x 12","operational current at AC-12 maximum":"10 A","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","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Type Of Voltage Of The Control Supply Voltage":"DC","Required Spacing For Grounded Parts At The Side":"6 mm","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","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","number of NC contacts for auxiliary contacts instantaneous contact":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","Of The Contactor With Added Electronically Optimized 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=384338&mlfb=3RT1026-1BM40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1026-1BM40/alternatives.json"},"ai":{"faq":[{"question":"What is the 3RT1026-1BM40 used for?","answer":"It is a SIRIUS S0 power contactor used for switching motor loads and resistive loads in industrial control panels. The AC-2 rating covers slip-ring motor starting, and the AC-4 rating covers plugging and inching duty."},{"question":"What are the key specifications of the 3RT1026-1BM40?","answer":"Key specs include a 220 VAC coil, 11 kW AC-2 at 400 V, 15.5 A AC-4 at 400 V, screw terminals, snap-on 35 mm DIN rail mount, and operating temperature range of -25 to +60 °C."},{"question":"How do I get current pricing and availability for the 3RT1026-1BM40?","answer":"Submit an RFQ through this listing. Pricing and availability are confirmed at quote time through independent distribution channels."},{"question":"Will the 3RT1026-1BM40 drop into a panel specified around the 3RT1026-1AB00?","answer":"Both are SIRIUS S0-frame contactors sharing the same footprint, DIN rail mount, and screw terminal layout. The primary difference is the coil voltage: the 1BM40 uses a 220 VAC coil, while the 1AB00 uses a different coil voltage. Verify the control voltage before substitution."},{"question":"What compliance documentation does Siemens provide for the 3RT1026-1BM40?","answer":"The product carries a RoHS compliance date of July 1, 2006, indicating it meets EU RoHS requirements. Standard Siemens documentation includes the declaration of conformity and CE marking."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1026-1BM40","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/3RT1026-1BM40 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}}