{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1034-3AP04","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1034-3AP04","canonicalUrl":"https://aoctrl.com/siemens/3RT1034-3AP04","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1034-3AP04","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S2, 3RT1034-3AP04, screw-type terminals, 15 kW AC-2 at 400 V, 29 A AC-4 at 400 V, DIN rail mount.","salesMarkdown":"It is rated for 15 kW in AC-2 duty at 400 V, which covers wound-rotor motor applications, and 29 A in AC-4 duty at 400 V for plugging and inching of squirrel-cage motors. These are the ratings that govern real-world fit, not a generic thermal current. Mechanical life is rated at 10,000,000 operations typical, with maximum switching frequencies varying by duty: 1,200 cycles per hour at AC-1, 750 at AC-2, 1,000 at AC-3, and 250 at AC-4. The contactor can be mounted side-by-side without derating, which simplifies panel layout. Main circuit terminals accept solid conductors from 2x 0.25 to 2.5 mm² and stranded conductors from 2x 0.75 to 25 mm². The minimum permissible conductor cross-section at 40 °C is 16 mm². Auxiliary and control circuit wiring uses the same screw-clamp technology. Dimensions are 55 mm wide, 112 mm high, and 164 mm deep — the depth is the dimension that extends behind the DIN rail, so verify cabinet depth clearance before specifying. No other compliance documents (UL, CSA, CE) are listed in the spec record, but the SIRIUS family typically carries these; verify the specific nameplate marking for your jurisdiction.","metaTitle":"Siemens 3RT1034-3AP04 SIRIUS Power Contactor, 15 kW AC-2 at","metaDescription":"Siemens SIRIUS 3RT1034-3AP04 power contactor, size S2. Rated 15 kW AC-2 at 400 V, 29 A AC-4 at 400 V. Screw terminals, DIN rail mount. Active production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"164 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"55 mm","at AC":"7 ... 20 ms","Height":"112 mm","Stranded":"2x (0.75 ... 25 mm²)","at 50 Hz":"0.8 ... 1.1","Arcing Time":"10 ... 15 ms","On The Front":"IP20","1 Rated Value":"50 Hz","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","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 50 Hz rated value":"230 V","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","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)","apparent holding power of magnet coil at AC":"9.7 VA","apparent pick-up power of magnet coil at AC":"104 VA","Type Of Voltage Of The Control Supply Voltage":"AC","Required Spacing For Grounded Parts At The Side":"6 mm","contact rating of auxiliary contacts according to UL":"A600 / Q600","Inductive Power Factor With Closing Power Of The Coil":"0.78","Installation Altitude At Height Above Sea Level Maximum":"2 000 m","Inductive Power Factor With The Holding Power Of The Coil":"0.42","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=138785&mlfb=3RT1034-3AP04","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1034-3AP04/alternatives.json"},"ai":{"faq":[{"question":"What are the key motor ratings for this contactor?","answer":"The contactor is rated for 15 kW in AC-2 duty at 400 V (wound-rotor motors) and 29 A in AC-4 duty at 400 V (plugging/inching). The AC-3 rating is not directly listed in the spec record, but the AC-2 and AC-4 figures are the ones that define its motor-switching capability."},{"question":"What is the physical size and mounting method?","answer":"It is a size S2 contactor measuring 55 mm wide, 112 mm high, and 164 mm deep. It mounts on a 35 mm DIN rail per DIN EN 50022 using screw and snap-on fastening."},{"question":"What wire sizes does it accept?","answer":"Main circuit screw terminals accept solid conductors from 2x 0.25 to 2.5 mm² and stranded conductors from 2x 0.75 to 25 mm². The minimum permissible cross-section at 40 °C is 16 mm²."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1034-3AP04","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/3RT1034-3AP04 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}}