{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1036-1BB40","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1036-1BB40","canonicalUrl":"https://aoctrl.com/siemens/3RT1036-1BB40","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1036-1BB40","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S2, 3RT1036-1BB40, 24 VDC coil, screw terminals, 55 mm width, AC-3 30 kW at 400 V.","salesMarkdown":"The 55 mm width and 112 mm height leave a compact footprint for a 30 kW AC-3 rated device. At 400 V AC-3 duty (the standard for squirrel-cage motor switching), this contactor is rated 30 kW — that's the motor power it can handle during starting and running under normal conditions. For AC-2 duty (slip-ring motors, where inrush is lower but switching frequency matters), it carries 22 kW at 400 V. These three duty ratings let you match the contactor to the specific motor control profile, not just a blanket current figure. ## Coil and auxiliary ratings The coil pulls 24 VDC nominal. Auxiliary contacts (built-in or added) are rated for switching at various voltages: 10 A at 24 V, 6 A at 230 V, 3 A at 400 V, and 0.3 A at 220 V DC. The DC switching curve drops sharply with voltage — at 60 V DC it's 2 A, at 110 V DC it's 1 A, at 220 V DC it's 0.3 A. That's typical for DC interruption; arc extinction is harder at higher DC voltages, so the rating reflects the contact gap's capability. For AC auxiliary loads, the 690 V rating is 11.4 kW, which covers most control transformer secondaries. Main power terminals are screw-type, accepting solid conductors up to 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), or max 2x (0.75–4 mm²). The terminal box is IP00 — open-style — so it's intended for enclosure mounting where the cabinet provides the overall IP rating. The front face carries IP20 finger-safe protection, which matters during commissioning or troubleshooting with the panel door open.","metaTitle":"Siemens 3RT1036-1BB40 SIRIUS Power Contactor, 24 VDC Coil, 5","metaDescription":"Siemens 3RT1036-1BB40 SIRIUS power contactor, 24 VDC coil, S2 frame, 55 mm wide. AC-3 rated 30 kW at 400 V. Screw terminals, DIN rail mount. Active production, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"130 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 DIN 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","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":"0","number of NO contacts for auxiliary contacts instantaneous contact":"0","Of The Contactor With Added Electronically Optimized Auxiliary Switch Block Typical":"5 000 000"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$216.62","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":"https://support.industry.siemens.com/webbackend/api/ProductSupport/TechnicalData?language=en&region=cn&productId=446989&mlfb=3RT1036-1BB40","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1036-1BB40/alternatives.json"},"ai":{"faq":[{"question":"What are the main motor ratings for 3RT1036-1BB40?","answer":"At 400 V AC-3 duty it is rated 30 kW, at AC-2 duty 22 kW, and AC-4 duty 41 A. At 500 V AC-3 it is rated 30 kW."},{"question":"What coil voltage does 3RT1036-1BB40 use?","answer":"The coil is rated 24 VDC."},{"question":"Where can I buy 3RT1036-1BB40?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1036-1BB40","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/3RT1036-1BB40 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}}