{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1036-1BP44","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1036-1BP44","canonicalUrl":"https://aoctrl.com/siemens/3RT1036-1BP44","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1036-1BP44","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS 3RT1036-1BP44 power contactor, size S2, 22 kW AC-2 at 400 V, 55 mm wide, screw-type terminals, IP20 front, snap-on DIN rail.","salesMarkdown":"Rated for AC-2 duty at 22 kW at 400 V and 11.4 kW at 690 V, this contactor handles wound-rotor motor switching where moderate inrush and frequent starts are expected. The AC-4 rating of 41 A at 400 V covers plugging and inching applications — the highest thermal stress a contactor sees in motor control. The main circuit uses screw-type terminals, accepting solid conductors up to 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²), and stranded up to 2x (0.75 to 25 mm²). At 40 °C the minimum permissible cross-section is 16 mm², which guides wire sizing for continuous full-load current. The IP20 rating on the front (IP00 at the terminals) means the contactor body is finger-safe when mounted in an enclosure, but the wiring terminals require the panel door to be closed or a separate finger guard. Switching frequency limits vary by duty: 1000 cycles/hour for AC-1 (resistive), 800 for AC-3 (squirrel-cage motor start/run), 400 for AC-2, and 300 for AC-4. For a conveyor line running frequent start/stop cycles, the AC-3 rate of 800 cycles/hour is the practical ceiling; exceeding it risks contact welding. ## DC switching and control voltage The contactor coil operates at 230 V rated control voltage, with an undervoltage release threshold of 0.8 times nominal (184 V) and an overload factor of 1.1 (253 V). For DC-13 switching (solenoid loads), the contactor is rated at 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, 6 A at 230 V, and 3 A at 400 V. These are the current limits for inductive DC loads; use them to size the contactor for valve or brake circuits.","metaTitle":"Siemens 3RT1036-1BP44 SIRIUS Power Contactor, 22 kW AC-2 at","metaDescription":"Siemens SIRIUS 3RT1036-1BP44 power contactor, size S2, 22 kW AC-2 at 400 V, 55 mm wide, screw terminals, IP20 front, current production. Sourced to order.","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":"230 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=326647&mlfb=3RT1036-1BP44","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1036-1BP44/alternatives.json"},"ai":{"faq":[{"question":"What compliance documentation does the 3RT1036-1BP44 carry?","answer":"RoHS compliance is documented with a substance prohibition date of 05/01/2012. The front protection is IP20; terminals are IP00. Pollution degree 3 is specified for industrial environments."},{"question":"What are the key dimensions for panel layout?","answer":"Width is 55 mm, height is 112 mm, depth is 179 mm. It mounts on 35 mm DIN rail per DIN EN 50022, with screw or snap-on fastening. Side-by-side mounting is allowed."},{"question":"What is the AC-2 motor rating at 400 V?","answer":"22 kW at 400 V for AC-2 duty (wound-rotor motors). At 690 V the rating is 11.4 kW. The AC-4 rating at 400 V is 41 A for plugging/inching."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1036-1BP44","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/3RT1036-1BP44 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}}