{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1034-1BB44-0AA2-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1034-1BB44-0AA2-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT1034-1BB44-0AA2-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1034-1BB44-0AA2-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S2, 24 VDC coil, screw-type terminals, IP20 front, 55 mm width, 139 mm height, 179 mm depth.","salesMarkdown":"The Siemens 3RT1034-1BB44-0AA2-ZX95 is a SIRIUS power contactor in size S2, rated for a 24 V DC coil. Its AC-3 switching capacity at 400 V is 15 kW, which means it handles standard three-phase motor loads up to that power in a typical pump or conveyor application. The AC-4 rating at 400 V is 29 A — that's the reversing or plugging duty cycle, where the contactor breaks full-load current; if your application does frequent inching or reversing, this is the number to size against, not the AC-3 figure. The coil pulls 10 A at 24 V rated value, with a 0.8 A inrush (initial value). Dropout happens between 20 and 30 ms after coil removal; arcing time runs 10 to 15 ms. That's a fast break — useful for safety circuits that need quick isolation without waiting for a slow dropout. ## Mounting and wiring — DIN-rail integration Side-by-side mounting is permitted.","metaTitle":"Siemens 3RT1034-1BB44-0AA2-ZX95 SIRIUS Power Contactor, 24 V","metaDescription":"Siemens SIRIUS power contactor 3RT1034-1BB44-0AA2-ZX95, size S2, 24 VDC coil, screw terminals, IP20 front. Current production. Sourced to order against RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"179 mm","Solid":"2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)","Width":"55 mm","at DC":"20 ... 30 ms","Height":"139 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":"18.5 kW","at 690 V rated value":"10 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":"29 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":"18 kW","at 690 V at 60 °C rated value":"54 kW","at AWG cables for main contacts":"2x (18 ... 2)","For Auxiliary And Control Circuit":"screw-type 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 (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","reference code according to IEC 81346-2":"Q","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)","Thermal Short-Time Current Limited To 10 S":"320 A","Finely Stranded Without Core End Processing":"2x (0.75 ... 16 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":"2","number of NO contacts for auxiliary contacts instantaneous contact":"2","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=459679&mlfb=3RT1034-1BB44-0AA2-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1034-1BB44-0AA2-ZX95/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source for 3RT1034-1BB44-0AA2-ZX95?","answer":"The 3RT1044-1FB46 is a larger-frame SIRIUS contactor (size S3 versus S2) with a different coil voltage and terminal arrangement. It will not drop into the same panel footprint without rewiring — the mounting hole pattern and terminal layout differ. For a direct fit, stay with the S2 frame and 24 VDC coil."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1034-1BB44-0AA2-ZX95","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/3RT1034-1BB44-0AA2-ZX95 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}}