{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1035-3KJ84-0LA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1035-3KJ84-0LA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1035-3KJ84-0LA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1035-3KJ84-0LA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS S2 power contactor, 3RT1035-3KJ84-0LA0, 22 kW at 500 V AC-3, screw terminals, DIN rail mount, IP00.","salesMarkdown":"The Siemens 3RT1035-3KJ84-0LA0 is a SIRIUS S2-frame power contactor rated for motor switching at 22 kW on 500 V AC-3 duty, and 18.5 kW at 400 V AC-2. In the heavier AC-4 category (plugging, inching) it handles 35 A at 400 V. The S2 frame is the middle size in the SIRIUS contactor family, sitting between the compact S0 and the larger S3. Main circuit connections are screw-type terminals. Wire ranges: solid 2x (0.25 to 2.5 mm²), stranded 2x (0.75 to 25 mm²), and a second stranded range 2x (0.75 to 16 mm²). This is a panel-mount component — IP00 on the front and at the terminals, so it lives inside an enclosure, not out in the weather. Dimensions: 80 mm wide, 110 mm high, 167 mm deep. Switching frequencies: 1200 cycles/hour at AC-1 (resistive), 1000 at AC-3 (motor start), 600 at AC-2, and 300 at AC-4. The AC-4 limit is the binding constraint for high-duty reversing applications. ## Control circuit and aux contacts The coil is rated 72 V. Pickup and dropout timing: DC operate time 20 to 25 ms, arcing time 10 to 15 ms. The auxiliary contact block (integrated or add-on) carries 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. The 24 V 10 A rating is the one to note for PLC output interfacing. Control supply threshold: initial value 0.7, full-scale value 1.25 — these are the pickup and dropout ratios relative to the rated control supply voltage. The contactor picks up at 70% of rated voltage and drops out at 125% (overvoltage release).","metaTitle":"Siemens 3RT1035-3KJ84-0LA0 SIRIUS Power Contactor, 22 kW at","metaDescription":"Siemens SIRIUS 3RT1035-3KJ84-0LA0 power contactor, S2 frame, 22 kW at 500 V AC-3, 35 A AC-4 at 400 V. Screw terminals, DIN rail mount. Current production. Sourced to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":null,"categoryPath":["Contactors"],"specifications":{"Depth":"167 mm","Solid":"2x (0.25 ... 2.5 mm²)","Width":"80 mm","at DC":"20 ... 25 ms","Height":"110 mm","Stranded":"2x (0.75 ... 25 mm²)","Arcing Time":"10 ... 15 ms","Rated Value":"72 V","On The Front":"IP00","Initial Value":"0.7","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":"-40 ... +70 °C","Fastening Method":"screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022","Full-Scale Value":"1.25","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","Design Of The Surge Suppressor":"with varistor","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":"spring-loaded terminals","With Type Of Assignment 2 Required":"fuse gL/gG: 63 A","closing power of magnet coil at DC":"46 W","holding power of magnet coil at DC":"14 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 (24 ... 14)","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 (0.25 ... 1.5 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 (0.25 ... 2.5 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":"1","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=421115&mlfb=3RT1035-3KJ84-0LA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1035-3KJ84-0LA0/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy 3RT1035-3KJ84-0LA0?","answer":"This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time."},{"question":"What is the closest functional alternative to 3RT1035-3KJ84-0LA0?","answer":"The 3RT1044-1FB46 is a higher-rated SIRIUS contactor (S3 frame) that shares the same screw-terminal, DIN-rail mounting format. It will not drop into a panel wired for the S2 frame without checking the footprint and terminal spacing — the S3 is physically larger. The 3RT5034-1BW40 and 3RT5035-1AH00 are from the SIRIUS 3RT5 series with different control voltages and aux configurations; verify coil voltage and terminal layout before substituting."},{"question":"What compliance documentation does this contactor carry?","answer":"The part has a RoHS substance prohibition date of 05/01/2012, indicating compliance with the EU RoHS directive. The SIRIUS series typically carries UL, CSA, and IEC certifications, though specific approval marks for this order code should be verified on the nameplate or manufacturer's declaration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1035-3KJ84-0LA0","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/3RT1035-3KJ84-0LA0 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}}