{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1036-1BB44-3MA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1036-1BB44-3MA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1036-1BB44-3MA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1036-1BB44-3MA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S2 power contactor, 3RT1036-1BB44-3MA0, rated 30 kW at 500 V AC-3, 41 A at 400 V AC-4, screw terminals, DIN rail mount, IP20 front.","salesMarkdown":"## SIRIUS S2 Power Contactor — 30 kW AC-3, 41 A AC-4 The Siemens SIRIUS 3RT1036-1BB44-3MA0 is a S2-frame power contactor rated for motor switching at 30 kW at 500 V AC-3, and for demanding AC-4 duty (plugging, inching) at 41 A at 400 V. ## Coil and Auxiliary Ratings Coil rated at 24 V DC, draws 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 pick-up/hold currents across the range. DC operating time is 20 to 25 ms. The coil's minimum switching capacity is 0.8 (initial value) and 1.1 (full-scale value) — these are the thresholds below which the contactor may not reliably switch, so check your control voltage sag. Solid wire: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), max 2x (0.75 to 4 mm²). Stranded wire: 2x (0.75 to 25 mm²). Solid or stranded: 2x (0.75 to 16 mm²). Minimum permissible conductor at 40 °C is 16 mm². These are the termination limits for the main power terminals — match your cable lugs accordingly. ## Dimensions and Mechanical Life Dimensions: 55 mm wide, 112 mm high, 179 mm deep. Mechanical life typical 10,000,000 operations. Side-by-side mounting is allowed — no derating for adjacent units in the same row. Maximum switching rates: 1,000 cycles/h at AC-1, 400 at AC-2, 800 at AC-3, 300 at AC-4.","metaTitle":"Siemens SIRIUS 3RT1036-1BB44-3MA0 Power Contactor, 30 kW at","metaDescription":"Siemens SIRIUS 3RT1036-1BB44-3MA0 S2 power contactor, 30 kW at 500 V AC-3, 41 A at 400 V AC-4. Screw terminals, DIN rail mount, IP20 front. Current lifecycle. 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":"24 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=264023&mlfb=3RT1036-1BB44-3MA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1036-1BB44-3MA0/alternatives.json"},"ai":{"faq":[{"question":"How do I get current pricing and availability for 3RT1036-1BB44-3MA0?","answer":"Submit an RFQ through this listing. Pricing and availability are confirmed at quote time; the part is sourced to order via independent distribution."},{"question":"What is the closest functional second-source for 3RT1036-1BB44-3MA0?","answer":"The 3RT1044-1FB46 is a larger-frame SIRIUS contactor with higher ratings — it will not drop into the same panel footprint without rewiring and space adjustments. For a direct fit, stick with the S2 frame."},{"question":"What compliance documentation does Siemens provide for 3RT1036-1BB44-3MA0?","answer":"RoHS compliance is confirmed with a substance prohibitance date of 05/01/2012. The part is rated for pollution degree 3 per IEC 60947. Standard CE and UKCA declarations are available from Siemens."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1036-1BB44-3MA0","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/3RT1036-1BB44-3MA0 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}}