{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1035-1BB44-ZX95","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1035-1BB44-ZX95","canonicalUrl":"https://aoctrl.com/siemens/3RT1035-1BB44-ZX95","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1035-1BB44-ZX95","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S2 power contactor, 3RT1035-1BB44-ZX95, 24 VDC coil, screw-type terminals, snap-on DIN rail mounting, 22 kW at 500 V AC-3.","salesMarkdown":"AC-3 motor switching at 500 V delivers 22 kW, and at 690 V it handles 11.4 kW. AC-4 at 400 V is rated 35 A for reversing or inching duty where the load is switched under full current. Terminals accept 2x (0.75 to 2.5 mm²) solid or 2x (0.75 to 25 mm²) stranded, with a maximum of 2x (0.75 to 4 mm²) solid on the smaller pair. The S2 frame measures 55 mm wide, 112 mm high, and 179 mm deep — fits standard 55 mm-wide contactor slots on a DIN rail. The built-in auxiliary contacts handle DC-13 loads at various voltages: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. For AC-15 control circuits they're rated 6 A at 230 V and 3 A at 400 V. These numbers govern the PLC output or relay it can drive directly — watch the DC-13 curve if you're switching solenoids or contactor coils in a 24 VDC control loop.","metaTitle":"Siemens 3RT1035-1BB44-ZX95 SIRIUS Power Contactor, 24 VDC, S","metaDescription":"Siemens 3RT1035-1BB44-ZX95 SIRIUS power contactor, size S2, 24 VDC coil. AC-3 rated 22 kW at 500 V. Screw terminals, snap-on DIN rail. Active production. Sourced to order against R","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":"1 200 1/h","at AC-2 maximum":"600 1/h","at AC-3 maximum":"1 000 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":"22 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":"18.5 kW","at AC-4 at 400 V rated value":"35 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: 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":"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=358275&mlfb=3RT1035-1BB44-ZX95","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1035-1BB44-ZX95/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1035-1BB44-ZX95?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at the time of quote."},{"question":"What is the closest functional second-source to 3RT1035-1BB44-ZX95?","answer":"The 3RT1044-1FB46 is a larger SIRIUS contactor (S3 frame vs S2) with higher current ratings, so it will not drop into the same panel footprint without rewiring and resizing the enclosure. For a direct drop-in replacement within the S2 frame, stick with the same size class."},{"question":"What compliance documentation does this contactor carry?","answer":"RoHS compliance is dated May 1, 2012. The pollution degree is 3 per IEC 60947-1. The mounting rail standard is DIN EN 50022. Full UL/CSA/CE documentation is typically available from the manufacturer's product page."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1035-1BB44-ZX95","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/3RT1035-1BB44-ZX95 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}}