{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1034-1BP44","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1034-1BP44","canonicalUrl":"https://aoctrl.com/siemens/3RT1034-1BP44","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1034-1BP44","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S2 power contactor, 3RT1034-1BP44, 230 V AC coil, screw-type terminals, 55 mm width, snap-on DIN rail mounting.","salesMarkdown":"## SIRIUS S2 Power Contactor — 3RT1034-1BP44 The Siemens 3RT1034-1BP44 is a SIRIUS S2 power contactor with a 230 V AC coil, designed for motor switching and general load management in industrial control panels. The AC-1 resistive rating supports 1,200 operating cycles per hour, while AC-3 motor duty allows 1,000 cycles per hour — figures that govern thermal endurance in high-cycle applications like conveyors or compressors. Coil pick-up is guaranteed at 0.8 × rated voltage (184 V for the 230 V coil), drop-out at 1.1 × (253 V). Operating times are 20–30 ms DC closing, with arcing time 10–15 ms. Solid wire acceptance: 2× (0.5–1.5 mm²), 2× (0.75–2.5 mm²), max 2× (0.75–4 mm²). Stranded: 2× (0.75–25 mm²). Solid or stranded: 2× (0.75–16 mm²). At 40 °C, minimum permissible conductor is 16 mm² — relevant for derating when ganging multiple contactors side-by-side. Front face carries IP20 finger-safe protection; terminal area is IP00 — wire entry zone is open during installation. Side-by-side mounting is permitted, which reduces panel width but requires attention to thermal derating per the manufacturer's arrangement guidelines. ## DC Switching Capability For DC load switching, the contactor is rated: 24 V at 10 A, 60 V at 2 A, 110 V at 1 A, 220 V at 0.3 A. These values define the resistive DC breaking capacity — useful for switching solenoids, DC brake coils, or control transformers in mixed-voltage panels. ## Motor Ratings by Voltage Motor power ratings: 18.5 kW at 500 V (AC-3), 10 kW at 690 V. AC-2 duty at 400 V delivers 15 kW. AC auxiliary ratings: 230 V at 6 A, 400 V at 3 A. These cover control-circuit switching for pilot devices or small auxiliary loads.","metaTitle":"Siemens 3RT1034-1BP44 SIRIUS Power Contactor, S2, 230 V AC C","metaDescription":"Siemens 3RT1034-1BP44 SIRIUS S2 power contactor. 230 V AC coil, screw terminals, DIN rail mount. Rated 18.5 kW at 500 V. 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":"112 mm","Stranded":"2x (0.75 ... 25 mm²)","Arcing Time":"10 ... 15 ms","Rated Value":"230 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=317241&mlfb=3RT1034-1BP44","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1034-1BP44/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1034-1BP44?","answer":"This part is sourced to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time."},{"question":"What is 3RT1034-1BP44's depth?","answer":"The depth is 179 mm, with a width of 55 mm and height of 112 mm, fitting the S2 frame size."},{"question":"What wire sizes does 3RT1034-1BP44 accept?","answer":"Solid wire: 2× (0.5–1.5 mm²), 2× (0.75–2.5 mm²), max 2× (0.75–4 mm²). Stranded: 2× (0.75–25 mm²). Solid or stranded: 2× (0.75–16 mm²)."},{"question":"Will 3RT1034-1BP44 drop into a panel specified for 3RT1044-1FB46?","answer":"No — the 3RT1044-1FB46 is a larger frame size (S3 vs S2). The 3RT1034-1BP44 has a 55 mm width versus the S3's wider footprint, so it will not share the same DIN rail drilling pattern or terminal spacing without rework."},{"question":"What compliance documentation does Siemens provide for 3RT1034-1BP44?","answer":"The part is RoHS compliant with substance prohibition date May 1, 2012. Standard Siemens declarations of conformity cover IEC/EN 60947-4-1 for contactors. UL and CSA listings are typical for the SIRIUS series, though not explicitly stated in this entry."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1034-1BP44","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/3RT1034-1BP44 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}}