{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1036-1BW44","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1036-1BW44","canonicalUrl":"https://aoctrl.com/siemens/3RT1036-1BW44","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1036-1BW44","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S2, 3RT1036-1BW44, screw-type terminals, 22 kW at AC-2 400 V, 55 mm width.","salesMarkdown":"It's a screw-type terminal unit rated for 22 kW at AC-2 duty on a 400 V line, and 41 A at AC-4 on the same voltage — the AC-4 figure is the one that governs reversing or inching duty, where the contacts make and break under full load current. Depth is 179 mm, which matters when you're laying out gland plates or enclosure depths. AC-4 at 400 V (41 A) is the one for plugging or inching — the hardest duty on the contacts. The 30 kW at 500 V and 11.4 kW at 690 V give you the range for 500 V or 690 V line supplies common in heavy industrial or mining. The front face carries IP20; the terminals are IP00, so they need to be inside a cabinet or shrouded. ## Terminal specs and wiring Main circuit terminals accept solid wire: 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). The minimum cross-section at 40 °C is 16 mm². RoHS compliance date is May 1, 2012 — it's RoHS compliant. The coil operates on 48 V DC with a pick-up time of 20 to 25 ms and arcing time of 10 to 15 ms.","metaTitle":"Siemens 3RT1036-1BW44 SIRIUS Power Contactor, S2, 55 mm","metaDescription":"Siemens 3RT1036-1BW44 SIRIUS power contactor, size S2, 22 kW at AC-2 400 V, 41 A at AC-4 400 V. Screw terminals, 55 mm width. Current production. RFQ for pricing.","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 ... 25 ms","Height":"112 mm","Stranded":"2x (0.75 ... 25 mm²)","Arcing Time":"10 ... 15 ms","Rated Value":"48 V","On The Front":"IP20","Initial Value":"0.8","During Storage":"-55 ... +80 °C","Of The Terminal":"IP00","at AC-1 maximum":"1 000 1/h","at AC-2 maximum":"400 1/h","at AC-3 maximum":"800 1/h","at AC-4 maximum":"300 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":"30 kW","at 690 V rated value":"11.4 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"22 kW","at AC-4 at 400 V rated value":"41 A","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"16 mm²","at 60 °C minimum permissible":"16 mm²","Insulation Voltage Rated Value":"690 V","at 230 V at 60 °C rated value":"22 kW","at 690 V at 60 °C rated value":"66 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: 80 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: 160 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":"400 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=291482&mlfb=3RT1036-1BW44","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1036-1BW44/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for this contactor?","answer":"The key motor ratings are 22 kW at AC-2 400 V and 41 A at AC-4 400 V. It also carries 30 kW at 500 V and 11.4 kW at 690 V."},{"question":"What is the physical size and mounting?","answer":"It's a size S2 contactor, 55 mm wide, 112 mm tall, 179 mm deep. It snaps onto 35 mm DIN rail or can be screw-mounted, and side-by-side mounting is allowed."},{"question":"What compliance documentation is available?","answer":"RoHS compliance is dated May 1, 2012. The front face is IP20; terminals are IP00. Pollution degree 3 is specified."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1036-1BW44","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/3RT1036-1BW44 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}}