{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1034-3BB44-3MA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1034-3BB44-3MA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1034-3BB44-3MA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1034-3BB44-3MA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S2, 24 VDC coil, screw-type terminals, IP20 front, 55 mm width.","salesMarkdown":"The Siemens 3RT1034-3BB44-3MA0 is a SIRIUS-brand power contactor in the S2 frame size, rated for motor switching and resistive loads. At 55 mm wide and 112 mm tall, it fits standard panel layouts without crowding adjacent devices. Screw terminals on the main circuit accept 2x (0.75...16 mm²) stranded or 2x (0.25...2.5 mm²) solid — enough for the full rated current without lug adapters. At 500 V it is rated 18.5 kW; at 690 V it derates to 10 kW. Maximum operating frequency varies by duty: 1 200 cycles/hour at AC-1 (resistive), 1 000 at AC-3, 750 at AC-2, 250 at AC-4. For a conveyor running at 30 starts/hour, any of these is fine; for a press that cycles 600 times/hour, AC-3 is the limit. RoHS compliance date is 05/01/2012, meaning it meets the EU RoHS directive for substances of concern. The contactor carries a typical mechanical life of 10 million operations — the figure for the contactor body itself, not the contacts under load.","metaTitle":"Siemens 3RT1034-3BB44-3MA0 SIRIUS S2 Power Contactor, 24 VDC","metaDescription":"Siemens SIRIUS 3RT1034-3BB44-3MA0 S2 power contactor, 24 VDC coil. Rated 15 kW AC-2 / 29 A AC-4 at 400 V. Screw terminals, IP20 front. Active production, quoted on request.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"179 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":"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":"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":"320 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":"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=73500&mlfb=3RT1034-3BB44-3MA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1034-3BB44-3MA0/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1034-3BB44-3MA0","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/3RT1034-3BB44-3MA0 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}}