{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1033-3BB40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1033-3BB40","canonicalUrl":"https://aoctrl.com/siemens/3RT1033-3BB40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1033-3BB40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, 3RT1033-3BB40, size S2, 24 VDC coil, screw-type terminals, 11 kW at 500 V AC-3, 55 mm width, DIN EN 50022 rail mount.","salesMarkdown":"For resistive loads (AC-1), the maximum switching rate is 1,200 operations per hour; for the heavy AC-4 duty, that drops to 250 ops/h — a real constraint for a conveyor zone that jogs frequently. The coil draws 10 A at 24 VDC during pick-up, with a pick-up factor of 0.8 and drop-out factor of 1.1. Screw terminals on the main circuit accept 2x (0.75 to 25 mm²) stranded or 2x (0.25 to 2.5 mm²) solid wire. The auxiliary circuit takes 2x (0.75 to 16 mm²) solid or stranded. At 40 °C, the minimum permissible wire size is 16 mm².","metaTitle":"Siemens 3RT1033-3BB40 SIRIUS Power Contactor, 24 VDC Coil, 1","metaDescription":"Siemens 3RT1033-3BB40 SIRIUS power contactor, size S2, 24 VDC coil, 11 kW at 500 V AC-3. Screw terminals, DIN rail mount. Current lifecycle. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"130 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"55 mm","at DC":"20 ... 30 ms","Height":"112 mm","Stranded":"2x (0.75 ... 25 mm²)","Arcing Time":"10 ... 15 ms","Rated Value":"24 V","On The Front":"IP20","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of The Terminal":"IP00","at AC-1 maximum":"1 200 1/h","at AC-2 maximum":"750 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"250 1/h","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":"S2","Solid Or Stranded":"2x (0.75 ... 16 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":"9.5 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"15 kW","at AC-4 at 400 V rated value":"15.5 A","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"16 mm²","at 60 °C minimum permissible":"10 mm²","Insulation Voltage Rated Value":"690 V","at 230 V at 60 °C rated value":"15 kW","at 690 V at 60 °C rated value":"40 kW","at AWG cables for main contacts":"2x (18 ... 2)","For Auxiliary And Control Circuit":"spring-loaded terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 63 A","closing power of magnet coil at DC":"13.3 W","holding power of magnet coil at DC":"13.3 W","Surge Voltage Resistance Rated Value":"6 kV","With Type Of Coordination 1 Required":"fuse gL/gG: 125 A","at AWG cables for auxiliary contacts":"2x (24 ... 14)","operational current at AC-12 maximum":"10 A","number of NC contacts for main contacts":"0","number of NO contacts for main contacts":"3","reference code according to IEC 81346-2":"Q","Finely Stranded With Core End Processing":"2x (0.25 ... 1.5 mm²)","Number Of Poles For Main Current Circuit":"3","Contact Reliability Of Auxiliary Contacts":"1 faulty switching per 100 million (17 V, 1 mA)","Thermal Short-Time Current Limited To 10 S":"200 A","Finely Stranded Without Core End Processing":"2x (0.25 ... 2.5 mm²)","Type Of Voltage Of The Control Supply Voltage":"DC","Required Spacing For Grounded Parts At The Side":"6 mm","contact rating of auxiliary contacts according to UL":"A600 / Q600","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=26566&mlfb=3RT1033-3BB40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1033-3BB40/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1033-3BB40 and how do I get a price?","answer":"The 3RT1033-3BB40 is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time."},{"question":"What is 3RT1033-3BB40's listed depth?","answer":"The 3RT1033-3BB40 has a depth of 130 mm, a width of 55 mm, and a height of 112 mm. These dimensions fit the standard SIRIUS S2 contactor footprint."},{"question":"What compliance documentation does Siemens provide for 3RT1033-3BB40?","answer":"The 3RT1033-3BB40 is RoHS compliant with a substance prohibition date of 05/01/2012. As a SIRIUS product, it meets IEC and UL standards for industrial control equipment. Full declarations and certificates are available through Siemens documentation channels."},{"question":"Will 3RT1033-3BB40 drop into a panel specified around 3RT1044-1FB46 without rewiring?","answer":"No, the 3RT1033-3BB40 is a size S2 contactor, while the 3RT1044-1FB46 is a larger frame size. The 55 mm width and mounting hole pattern differ, so it will not directly swap without panel modifications. Check the specific frame dimensions and terminal locations before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1033-3BB40","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/3RT1033-3BB40 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}}