{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3RT1034-3KK84-0LA0","brand":"Siemens","brandSlug":"siemens","productSlug":"3RT1034-3KK84-0LA0","canonicalUrl":"https://aoctrl.com/siemens/3RT1034-3KK84-0LA0","factsUrl":"https://aoctrl.com/api/mcp/products/3RT1034-3KK84-0LA0","rawCanonicalId":null},"summary":{"shortDescription":"Siemens SIRIUS power contactor, size S2, 3RT1034-3KK84-0LA0, 18.5 kW at 500 V AC-3, 10 kW at 690 V, screw terminals, DIN rail mount.","salesMarkdown":"The Siemens SIRIUS 3RT1034-3KK84-0LA0 is a size S2 power contactor rated for motor switching at 18.5 kW at 500 V AC-3 and 10 kW at 690 V, with an AC-4 rating of 29 A at 400 V for reversing or inching duty. Snap-on mounting onto 35 mm DIN rail per EN 50022, with screw terminals for the main circuit accepting 2x (0.75...25 mm²) stranded or 2x (0.25...2.5 mm²) solid — sized for motor branch circuits up to 16 mm² at 40 °C. Dimensions 80 mm wide × 110 mm high × 167 mm deep, with side-by-side mounting permitted for dense panel layouts. ## Duty-cycle ratings and thermal limits Maximum operating frequency at AC-3 is 1,000 switching cycles per hour; AC-4 duty is limited to 250 cycles per hour — the lower figure governs for plugging or jogging applications. Arcing time 10...15 ms, DC coil dropout 20...30 ms — relevant for timing coordination in safety circuits or sequential start schemes. RoHS compliance date 05/01/2012; substance prohibitions per EU directive apply from that date. Typical mechanical life 10 million operations. ## Panel integration Side-by-side mounting allowed — no mandatory spacing between contactors in a row, which saves rail length in multi-contactor motor control centers. Solid wire range 2x (0.25...2.5 mm²) for control wiring; stranded 2x (0.75...25 mm²) for power connections.","metaTitle":"Siemens 3RT1034-3KK84-0LA0 SIRIUS Power Contactor, 18.5 kW a","metaDescription":"Siemens SIRIUS power contactor 3RT1034-3KK84-0LA0, size S2, 18.5 kW at 500 V AC-3, 10 kW at 690 V. Screw terminals, DIN rail mount. Active production. Available to order against RF","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 ... 30 ms","Height":"110 mm","Stranded":"2x (0.75 ... 25 mm²)","Arcing Time":"10 ... 15 ms","Rated Value":"52 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":"750 1/h","at AC-3 maximum":"1 000 1/h","at AC-4 maximum":"250 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":"18.5 kW","at 690 V rated value":"10 kW","Side-By-Side Mounting":"Yes","For Main Current Circuit":"screw-type terminals","at AC-2 at 400 V rated value":"15 kW","at AC-4 at 400 V rated value":"29 A","Substance Prohibitance (Date)":"05/01/2012","at 40 °C minimum permissible":"16 mm²","at 60 °C minimum permissible":"10 mm²","Design Of The Surge Suppressor":"with varistor","Insulation Voltage Rated Value":"690 V","at 230 V at 60 °C rated value":"18 kW","at 690 V at 60 °C rated value":"54 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":"320 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=443800&mlfb=3RT1034-3KK84-0LA0","alternativesUrl":"https://aoctrl.com/api/mcp/products/3RT1034-3KK84-0LA0/alternatives.json"},"ai":{"faq":[{"question":"What are the key ratings for 3RT1034-3KK84-0LA0?","answer":"Rated 18.5 kW at 500 V AC-3, 10 kW at 690 V, and 29 A at 400 V AC-4. AC-3 switching frequency 1,000 cycles/hour; AC-4 limited to 250 cycles/hour."},{"question":"Where can I buy 3RT1034-3KK84-0LA0?","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 compliance documentation does Siemens provide for 3RT1034-3KK84-0LA0?","answer":"RoHS compliance effective 05/01/2012. Typical documentation includes RoHS declaration, CE declaration of conformity, and IEC/EN product standards for contactors."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"matrix-langgraph","citationUrl":"https://aoctrl.com/siemens/3RT1034-3KK84-0LA0","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/3RT1034-3KK84-0LA0 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}}